./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:35:56,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:35:56,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:35:56,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:35:56,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:35:56,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:35:56,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:35:56,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:35:56,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:35:56,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:35:56,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:35:56,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:35:56,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:35:56,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:35:56,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:35:56,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:35:56,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:35:56,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:35:56,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:35:56,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:35:56,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:35:56,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:35:56,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:35:56,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:35:56,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:35:56,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:35:56,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:35:56,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:35:56,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:35:56,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:35:56,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:35:56,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:35:56,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:35:56,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:35:56,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:35:56,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:35:56,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:35:56,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:35:56,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:35:56,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:35:56,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:35:56,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 05:35:56,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:35:56,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:35:56,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:35:56,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:35:56,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:35:56,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:35:56,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:35:56,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:35:56,991 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:35:56,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:35:56,993 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:35:56,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:35:56,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:35:56,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:35:56,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:35:56,994 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 05:35:56,995 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 05:35:56,995 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 05:35:56,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:35:56,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 05:35:56,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:35:56,996 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:35:56,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:35:56,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:35:56,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:35:56,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:35:56,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:35:56,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:35:56,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:35:57,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:35:57,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:35:57,001 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_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2021-11-20 05:35:57,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:35:57,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:35:57,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:35:57,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:35:57,351 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:35:57,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-11-20 05:35:57,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/f9d17dfac/946c32e67e7746309e91775aa4fb8002/FLAG537eda9f0 [2021-11-20 05:35:58,100 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:35:58,101 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-11-20 05:35:58,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/f9d17dfac/946c32e67e7746309e91775aa4fb8002/FLAG537eda9f0 [2021-11-20 05:35:58,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/f9d17dfac/946c32e67e7746309e91775aa4fb8002 [2021-11-20 05:35:58,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:35:58,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:35:58,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:35:58,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:35:58,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:35:58,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:35:58" (1/1) ... [2021-11-20 05:35:58,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a0145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:58, skipping insertion in model container [2021-11-20 05:35:58,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:35:58" (1/1) ... [2021-11-20 05:35:58,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:35:58,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:35:58,966 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_16ffba5f-d4b4-496a-b7db-64a9359fd043/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-11-20 05:35:58,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:35:58,980 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:35:59,172 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_16ffba5f-d4b4-496a-b7db-64a9359fd043/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-11-20 05:35:59,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:35:59,189 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:35:59,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59 WrapperNode [2021-11-20 05:35:59,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:35:59,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:35:59,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:35:59,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:35:59,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,344 INFO L137 Inliner]: procedures = 41, calls = 77, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 1331 [2021-11-20 05:35:59,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:35:59,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:35:59,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:35:59,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:35:59,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:35:59,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:35:59,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:35:59,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:35:59,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (1/1) ... [2021-11-20 05:35:59,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:35:59,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:59,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:59,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:35:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:35:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-11-20 05:35:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-11-20 05:35:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2021-11-20 05:35:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2021-11-20 05:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-11-20 05:35:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-11-20 05:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-11-20 05:35:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-11-20 05:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-11-20 05:35:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-11-20 05:35:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:35:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-11-20 05:35:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-11-20 05:35:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2021-11-20 05:35:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2021-11-20 05:35:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:35:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:35:59,790 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:35:59,792 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:35:59,815 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:35:59,904 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-11-20 05:35:59,905 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-11-20 05:35:59,906 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:35:59,918 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-20 05:35:59,918 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-20 05:35:59,935 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:35:59,952 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:35:59,989 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:35:59,997 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,003 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,006 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,014 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,801 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume !false; [2021-11-20 05:36:00,802 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2021-11-20 05:36:00,802 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2021-11-20 05:36:00,802 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume !false; [2021-11-20 05:36:00,802 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume false; [2021-11-20 05:36:00,809 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2021-11-20 05:36:00,809 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2021-11-20 05:36:00,809 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2021-11-20 05:36:00,809 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-11-20 05:36:00,810 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-11-20 05:36:00,810 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2021-11-20 05:36:00,810 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !false; [2021-11-20 05:36:00,810 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##235: assume false; [2021-11-20 05:36:00,810 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2021-11-20 05:36:00,812 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-20 05:36:00,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-20 05:36:00,873 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,874 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,875 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:00,946 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2021-11-20 05:36:00,946 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-11-20 05:36:00,947 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-11-20 05:36:00,947 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2021-11-20 05:36:00,948 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-11-20 05:36:00,948 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-11-20 05:36:00,960 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:36:00,990 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:36:00,992 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:36:00,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:00 BoogieIcfgContainer [2021-11-20 05:36:00,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:36:01,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:36:01,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:36:01,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:36:01,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:35:58" (1/3) ... [2021-11-20 05:36:01,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d2c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:01, skipping insertion in model container [2021-11-20 05:36:01,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:59" (2/3) ... [2021-11-20 05:36:01,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d2c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:01, skipping insertion in model container [2021-11-20 05:36:01,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:00" (3/3) ... [2021-11-20 05:36:01,012 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-11-20 05:36:01,029 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:36:01,029 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 05:36:01,083 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:36:01,091 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-20 05:36:01,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 05:36:01,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-20 05:36:01,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 05:36:01,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:01,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:01,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:01,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:01,160 INFO L85 PathProgramCache]: Analyzing trace with hash -207662659, now seen corresponding path program 1 times [2021-11-20 05:36:01,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:01,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631044847] [2021-11-20 05:36:01,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:01,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:01,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:01,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631044847] [2021-11-20 05:36:01,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631044847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:01,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:01,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:01,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33403410] [2021-11-20 05:36:01,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:01,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:01,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:01,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:01,434 INFO L87 Difference]: Start difference. First operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:01,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:01,564 INFO L93 Difference]: Finished difference Result 318 states and 469 transitions. [2021-11-20 05:36:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:01,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2021-11-20 05:36:01,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:01,604 INFO L225 Difference]: With dead ends: 318 [2021-11-20 05:36:01,604 INFO L226 Difference]: Without dead ends: 316 [2021-11-20 05:36:01,607 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 [2021-11-20 05:36:01,613 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 262 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:01,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 631 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-20 05:36:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-11-20 05:36:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 257 states have (on average 1.5058365758754864) internal successors, (387), 282 states have internal predecessors, (387), 51 states have call successors, (51), 7 states have call predecessors, (51), 6 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-20 05:36:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 467 transitions. [2021-11-20 05:36:01,733 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 467 transitions. Word has length 8 [2021-11-20 05:36:01,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:01,734 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 467 transitions. [2021-11-20 05:36:01,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 467 transitions. [2021-11-20 05:36:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 05:36:01,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:01,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:01,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:36:01,738 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:01,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:01,739 INFO L85 PathProgramCache]: Analyzing trace with hash -922150621, now seen corresponding path program 1 times [2021-11-20 05:36:01,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:01,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129082826] [2021-11-20 05:36:01,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:01,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:01,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:01,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129082826] [2021-11-20 05:36:01,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129082826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:01,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:01,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:01,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946571330] [2021-11-20 05:36:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:01,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:01,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:01,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:01,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:01,841 INFO L87 Difference]: Start difference. First operand 316 states and 467 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:02,068 INFO L93 Difference]: Finished difference Result 440 states and 643 transitions. [2021-11-20 05:36:02,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:02,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-20 05:36:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:02,076 INFO L225 Difference]: With dead ends: 440 [2021-11-20 05:36:02,077 INFO L226 Difference]: Without dead ends: 440 [2021-11-20 05:36:02,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:02,086 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 371 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:02,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [371 Valid, 782 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-20 05:36:02,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 418. [2021-11-20 05:36:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 358 states have (on average 1.4245810055865922) internal successors, (510), 363 states have internal predecessors, (510), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2021-11-20 05:36:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 611 transitions. [2021-11-20 05:36:02,149 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 611 transitions. Word has length 16 [2021-11-20 05:36:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:02,153 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 611 transitions. [2021-11-20 05:36:02,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 611 transitions. [2021-11-20 05:36:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 05:36:02,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:02,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:02,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:36:02,155 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1499851736, now seen corresponding path program 1 times [2021-11-20 05:36:02,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:02,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913440155] [2021-11-20 05:36:02,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:02,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:02,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913440155] [2021-11-20 05:36:02,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913440155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:02,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:02,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:36:02,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603852641] [2021-11-20 05:36:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:02,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:02,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:02,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:02,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:02,297 INFO L87 Difference]: Start difference. First operand 418 states and 611 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:02,401 INFO L93 Difference]: Finished difference Result 417 states and 610 transitions. [2021-11-20 05:36:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:02,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-11-20 05:36:02,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:02,411 INFO L225 Difference]: With dead ends: 417 [2021-11-20 05:36:02,411 INFO L226 Difference]: Without dead ends: 413 [2021-11-20 05:36:02,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:02,421 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 272 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:02,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 544 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:02,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-11-20 05:36:02,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-11-20 05:36:02,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 354 states have (on average 1.4039548022598871) internal successors, (497), 358 states have internal predecessors, (497), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2021-11-20 05:36:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 598 transitions. [2021-11-20 05:36:02,459 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 598 transitions. Word has length 14 [2021-11-20 05:36:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:02,460 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 598 transitions. [2021-11-20 05:36:02,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,461 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 598 transitions. [2021-11-20 05:36:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 05:36:02,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:02,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:02,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:36:02,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:02,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash -866854925, now seen corresponding path program 1 times [2021-11-20 05:36:02,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:02,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089041521] [2021-11-20 05:36:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:02,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:02,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089041521] [2021-11-20 05:36:02,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089041521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:02,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:02,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:02,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704855034] [2021-11-20 05:36:02,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:02,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:02,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:02,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:02,588 INFO L87 Difference]: Start difference. First operand 413 states and 598 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:02,654 INFO L93 Difference]: Finished difference Result 499 states and 706 transitions. [2021-11-20 05:36:02,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:02,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 05:36:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:02,661 INFO L225 Difference]: With dead ends: 499 [2021-11-20 05:36:02,662 INFO L226 Difference]: Without dead ends: 499 [2021-11-20 05:36:02,662 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 [2021-11-20 05:36:02,672 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 407 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:02,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 545 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:02,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-11-20 05:36:02,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 467. [2021-11-20 05:36:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 401 states have (on average 1.399002493765586) internal successors, (561), 412 states have internal predecessors, (561), 51 states have call successors, (51), 14 states have call predecessors, (51), 14 states have return successors, (59), 43 states have call predecessors, (59), 41 states have call successors, (59) [2021-11-20 05:36:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 671 transitions. [2021-11-20 05:36:02,709 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 671 transitions. Word has length 19 [2021-11-20 05:36:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:02,710 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 671 transitions. [2021-11-20 05:36:02,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 671 transitions. [2021-11-20 05:36:02,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 05:36:02,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:02,713 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] [2021-11-20 05:36:02,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:36:02,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:02,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:02,714 INFO L85 PathProgramCache]: Analyzing trace with hash 122564240, now seen corresponding path program 1 times [2021-11-20 05:36:02,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:02,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048291736] [2021-11-20 05:36:02,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:02,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:02,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048291736] [2021-11-20 05:36:02,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048291736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:02,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:02,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:02,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776706453] [2021-11-20 05:36:02,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:02,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:02,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:02,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:02,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:02,802 INFO L87 Difference]: Start difference. First operand 467 states and 671 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:02,837 INFO L93 Difference]: Finished difference Result 646 states and 916 transitions. [2021-11-20 05:36:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:02,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-20 05:36:02,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:02,845 INFO L225 Difference]: With dead ends: 646 [2021-11-20 05:36:02,845 INFO L226 Difference]: Without dead ends: 646 [2021-11-20 05:36:02,846 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 [2021-11-20 05:36:02,847 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 397 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:02,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 658 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:02,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2021-11-20 05:36:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 621. [2021-11-20 05:36:02,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 538 states have (on average 1.3866171003717471) internal successors, (746), 546 states have internal predecessors, (746), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2021-11-20 05:36:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 887 transitions. [2021-11-20 05:36:02,881 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 887 transitions. Word has length 22 [2021-11-20 05:36:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:02,882 INFO L470 AbstractCegarLoop]: Abstraction has 621 states and 887 transitions. [2021-11-20 05:36:02,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 887 transitions. [2021-11-20 05:36:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 05:36:02,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:02,886 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] [2021-11-20 05:36:02,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:36:02,886 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:02,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1248863601, now seen corresponding path program 1 times [2021-11-20 05:36:02,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:02,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533306195] [2021-11-20 05:36:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:36:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:02,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:02,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533306195] [2021-11-20 05:36:03,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533306195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:03,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:03,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:03,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066548293] [2021-11-20 05:36:03,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:03,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:03,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:03,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:03,002 INFO L87 Difference]: Start difference. First operand 621 states and 887 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:03,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:03,434 INFO L93 Difference]: Finished difference Result 685 states and 972 transitions. [2021-11-20 05:36:03,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:03,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2021-11-20 05:36:03,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:03,445 INFO L225 Difference]: With dead ends: 685 [2021-11-20 05:36:03,446 INFO L226 Difference]: Without dead ends: 685 [2021-11-20 05:36:03,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:03,448 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 118 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:03,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1263 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:03,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-11-20 05:36:03,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 662. [2021-11-20 05:36:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 577 states have (on average 1.3795493934142113) internal successors, (796), 585 states have internal predecessors, (796), 61 states have call successors, (61), 22 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2021-11-20 05:36:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 942 transitions. [2021-11-20 05:36:03,493 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 942 transitions. Word has length 29 [2021-11-20 05:36:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:03,493 INFO L470 AbstractCegarLoop]: Abstraction has 662 states and 942 transitions. [2021-11-20 05:36:03,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 942 transitions. [2021-11-20 05:36:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 05:36:03,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:03,502 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] [2021-11-20 05:36:03,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:36:03,503 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:03,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1346397447, now seen corresponding path program 1 times [2021-11-20 05:36:03,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:03,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271738097] [2021-11-20 05:36:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:03,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:03,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:03,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271738097] [2021-11-20 05:36:03,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271738097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:03,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:03,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:03,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202029347] [2021-11-20 05:36:03,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:03,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:03,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:03,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:03,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:03,647 INFO L87 Difference]: Start difference. First operand 662 states and 942 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:03,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:03,731 INFO L93 Difference]: Finished difference Result 674 states and 958 transitions. [2021-11-20 05:36:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:03,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 05:36:03,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:03,739 INFO L225 Difference]: With dead ends: 674 [2021-11-20 05:36:03,739 INFO L226 Difference]: Without dead ends: 674 [2021-11-20 05:36:03,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:03,741 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 20 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:03,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 784 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-11-20 05:36:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 673. [2021-11-20 05:36:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 588 states have (on average 1.3775510204081634) internal successors, (810), 595 states have internal predecessors, (810), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2021-11-20 05:36:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 956 transitions. [2021-11-20 05:36:03,779 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 956 transitions. Word has length 28 [2021-11-20 05:36:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:03,781 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 956 transitions. [2021-11-20 05:36:03,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 956 transitions. [2021-11-20 05:36:03,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 05:36:03,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:03,783 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] [2021-11-20 05:36:03,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:36:03,784 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:03,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash 392976058, now seen corresponding path program 1 times [2021-11-20 05:36:03,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:03,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587019616] [2021-11-20 05:36:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:03,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:36:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:04,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:04,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587019616] [2021-11-20 05:36:04,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587019616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:04,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:04,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:04,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603766710] [2021-11-20 05:36:04,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:04,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:04,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:04,006 INFO L87 Difference]: Start difference. First operand 673 states and 956 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:04,714 INFO L93 Difference]: Finished difference Result 696 states and 984 transitions. [2021-11-20 05:36:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:04,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-11-20 05:36:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:04,721 INFO L225 Difference]: With dead ends: 696 [2021-11-20 05:36:04,721 INFO L226 Difference]: Without dead ends: 696 [2021-11-20 05:36:04,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:04,722 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 584 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:04,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 1459 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:36:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-11-20 05:36:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 673. [2021-11-20 05:36:04,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 588 states have (on average 1.3741496598639455) internal successors, (808), 595 states have internal predecessors, (808), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2021-11-20 05:36:04,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 954 transitions. [2021-11-20 05:36:04,753 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 954 transitions. Word has length 30 [2021-11-20 05:36:04,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:04,754 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 954 transitions. [2021-11-20 05:36:04,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:04,754 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 954 transitions. [2021-11-20 05:36:04,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 05:36:04,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:04,756 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] [2021-11-20 05:36:04,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:36:04,757 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:04,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:04,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1642550596, now seen corresponding path program 1 times [2021-11-20 05:36:04,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:04,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377635544] [2021-11-20 05:36:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:04,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 05:36:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:04,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:04,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:04,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377635544] [2021-11-20 05:36:04,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377635544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:04,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:04,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:04,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576870104] [2021-11-20 05:36:04,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:04,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:04,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:04,924 INFO L87 Difference]: Start difference. First operand 673 states and 954 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:05,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:05,536 INFO L93 Difference]: Finished difference Result 696 states and 982 transitions. [2021-11-20 05:36:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:05,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-11-20 05:36:05,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:05,542 INFO L225 Difference]: With dead ends: 696 [2021-11-20 05:36:05,543 INFO L226 Difference]: Without dead ends: 696 [2021-11-20 05:36:05,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:05,544 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 649 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:05,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [663 Valid, 1209 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:05,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-11-20 05:36:05,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 673. [2021-11-20 05:36:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 588 states have (on average 1.370748299319728) internal successors, (806), 595 states have internal predecessors, (806), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2021-11-20 05:36:05,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 952 transitions. [2021-11-20 05:36:05,573 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 952 transitions. Word has length 32 [2021-11-20 05:36:05,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:05,574 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 952 transitions. [2021-11-20 05:36:05,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:05,574 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 952 transitions. [2021-11-20 05:36:05,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 05:36:05,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:05,576 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] [2021-11-20 05:36:05,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:36:05,577 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:05,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2035129213, now seen corresponding path program 1 times [2021-11-20 05:36:05,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:05,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135530266] [2021-11-20 05:36:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:05,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:36:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:05,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135530266] [2021-11-20 05:36:05,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135530266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:05,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:05,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:05,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521867293] [2021-11-20 05:36:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:05,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:05,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:05,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:05,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:05,657 INFO L87 Difference]: Start difference. First operand 673 states and 952 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:06,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:06,022 INFO L93 Difference]: Finished difference Result 702 states and 988 transitions. [2021-11-20 05:36:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:06,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-11-20 05:36:06,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:06,029 INFO L225 Difference]: With dead ends: 702 [2021-11-20 05:36:06,029 INFO L226 Difference]: Without dead ends: 690 [2021-11-20 05:36:06,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:06,030 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 395 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:06,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1493 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-11-20 05:36:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 671. [2021-11-20 05:36:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 587 states have (on average 1.3696763202725724) internal successors, (804), 594 states have internal predecessors, (804), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (84), 54 states have call predecessors, (84), 52 states have call successors, (84) [2021-11-20 05:36:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 948 transitions. [2021-11-20 05:36:06,061 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 948 transitions. Word has length 32 [2021-11-20 05:36:06,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:06,061 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 948 transitions. [2021-11-20 05:36:06,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:06,062 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 948 transitions. [2021-11-20 05:36:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 05:36:06,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:06,064 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] [2021-11-20 05:36:06,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:36:06,065 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:06,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:06,066 INFO L85 PathProgramCache]: Analyzing trace with hash -594269944, now seen corresponding path program 1 times [2021-11-20 05:36:06,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:06,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83742568] [2021-11-20 05:36:06,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:06,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:06,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:06,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:06,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83742568] [2021-11-20 05:36:06,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83742568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:06,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:06,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:06,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448492191] [2021-11-20 05:36:06,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:06,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:06,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:06,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:06,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:06,146 INFO L87 Difference]: Start difference. First operand 671 states and 948 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:06,180 INFO L93 Difference]: Finished difference Result 675 states and 944 transitions. [2021-11-20 05:36:06,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:06,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-20 05:36:06,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:06,189 INFO L225 Difference]: With dead ends: 675 [2021-11-20 05:36:06,190 INFO L226 Difference]: Without dead ends: 660 [2021-11-20 05:36:06,190 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 [2021-11-20 05:36:06,191 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 87 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:06,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 900 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2021-11-20 05:36:06,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 655. [2021-11-20 05:36:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 572 states have (on average 1.3618881118881119) internal successors, (779), 579 states have internal predecessors, (779), 60 states have call successors, (60), 23 states have call predecessors, (60), 22 states have return successors, (83), 53 states have call predecessors, (83), 52 states have call successors, (83) [2021-11-20 05:36:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 922 transitions. [2021-11-20 05:36:06,219 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 922 transitions. Word has length 30 [2021-11-20 05:36:06,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:06,220 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 922 transitions. [2021-11-20 05:36:06,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 922 transitions. [2021-11-20 05:36:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 05:36:06,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:06,222 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] [2021-11-20 05:36:06,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 05:36:06,223 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:06,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:06,223 INFO L85 PathProgramCache]: Analyzing trace with hash -444205741, now seen corresponding path program 1 times [2021-11-20 05:36:06,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:06,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804709981] [2021-11-20 05:36:06,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:06,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:06,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:06,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:06,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804709981] [2021-11-20 05:36:06,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804709981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:06,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:06,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:36:06,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118692912] [2021-11-20 05:36:06,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:06,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:36:06,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:06,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:36:06,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:36:06,299 INFO L87 Difference]: Start difference. First operand 655 states and 922 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:06,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:06,359 INFO L93 Difference]: Finished difference Result 671 states and 939 transitions. [2021-11-20 05:36:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:36:06,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-20 05:36:06,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:06,366 INFO L225 Difference]: With dead ends: 671 [2021-11-20 05:36:06,366 INFO L226 Difference]: Without dead ends: 671 [2021-11-20 05:36:06,366 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 [2021-11-20 05:36:06,368 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 27 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:06,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1249 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-11-20 05:36:06,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 657. [2021-11-20 05:36:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 574 states have (on average 1.3606271777003485) internal successors, (781), 581 states have internal predecessors, (781), 60 states have call successors, (60), 23 states have call predecessors, (60), 22 states have return successors, (83), 53 states have call predecessors, (83), 52 states have call successors, (83) [2021-11-20 05:36:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 924 transitions. [2021-11-20 05:36:06,398 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 924 transitions. Word has length 30 [2021-11-20 05:36:06,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:06,399 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 924 transitions. [2021-11-20 05:36:06,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:06,399 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 924 transitions. [2021-11-20 05:36:06,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 05:36:06,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:06,401 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] [2021-11-20 05:36:06,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 05:36:06,402 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:06,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash -565183302, now seen corresponding path program 1 times [2021-11-20 05:36:06,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:06,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420903272] [2021-11-20 05:36:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:06,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:06,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 05:36:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:36:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:06,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:06,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:06,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420903272] [2021-11-20 05:36:06,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420903272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:06,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:06,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:06,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538425828] [2021-11-20 05:36:06,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:06,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:06,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:06,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:06,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:06,502 INFO L87 Difference]: Start difference. First operand 657 states and 924 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:06,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:06,919 INFO L93 Difference]: Finished difference Result 686 states and 960 transitions. [2021-11-20 05:36:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:06,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2021-11-20 05:36:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:06,925 INFO L225 Difference]: With dead ends: 686 [2021-11-20 05:36:06,925 INFO L226 Difference]: Without dead ends: 669 [2021-11-20 05:36:06,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:06,926 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 318 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:06,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1713 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:06,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2021-11-20 05:36:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 650. [2021-11-20 05:36:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 570 states have (on average 1.3614035087719298) internal successors, (776), 577 states have internal predecessors, (776), 58 states have call successors, (58), 22 states have call predecessors, (58), 21 states have return successors, (81), 51 states have call predecessors, (81), 50 states have call successors, (81) [2021-11-20 05:36:06,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 915 transitions. [2021-11-20 05:36:06,954 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 915 transitions. Word has length 33 [2021-11-20 05:36:06,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:06,955 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 915 transitions. [2021-11-20 05:36:06,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 915 transitions. [2021-11-20 05:36:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 05:36:06,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:06,957 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] [2021-11-20 05:36:06,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 05:36:06,958 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:06,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:06,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1157172831, now seen corresponding path program 1 times [2021-11-20 05:36:06,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:06,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682291836] [2021-11-20 05:36:06,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:06,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:07,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:07,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682291836] [2021-11-20 05:36:07,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682291836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:07,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:07,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:36:07,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533789873] [2021-11-20 05:36:07,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:07,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:36:07,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:07,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:36:07,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:36:07,007 INFO L87 Difference]: Start difference. First operand 650 states and 915 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:07,064 INFO L93 Difference]: Finished difference Result 666 states and 932 transitions. [2021-11-20 05:36:07,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:36:07,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-20 05:36:07,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:07,070 INFO L225 Difference]: With dead ends: 666 [2021-11-20 05:36:07,070 INFO L226 Difference]: Without dead ends: 666 [2021-11-20 05:36:07,071 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 [2021-11-20 05:36:07,072 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 28 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:07,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 1226 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:07,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-11-20 05:36:07,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 650. [2021-11-20 05:36:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 570 states have (on average 1.3614035087719298) internal successors, (776), 577 states have internal predecessors, (776), 58 states have call successors, (58), 22 states have call predecessors, (58), 21 states have return successors, (81), 51 states have call predecessors, (81), 50 states have call successors, (81) [2021-11-20 05:36:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 915 transitions. [2021-11-20 05:36:07,107 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 915 transitions. Word has length 31 [2021-11-20 05:36:07,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:07,108 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 915 transitions. [2021-11-20 05:36:07,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 915 transitions. [2021-11-20 05:36:07,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 05:36:07,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:07,110 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] [2021-11-20 05:36:07,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 05:36:07,111 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash -984672399, now seen corresponding path program 1 times [2021-11-20 05:36:07,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:07,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890854074] [2021-11-20 05:36:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:07,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:07,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:07,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890854074] [2021-11-20 05:36:07,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890854074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:07,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:07,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:36:07,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981190166] [2021-11-20 05:36:07,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:07,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:36:07,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:07,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:36:07,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:36:07,169 INFO L87 Difference]: Start difference. First operand 650 states and 915 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:07,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:07,527 INFO L93 Difference]: Finished difference Result 908 states and 1277 transitions. [2021-11-20 05:36:07,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:07,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-11-20 05:36:07,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:07,535 INFO L225 Difference]: With dead ends: 908 [2021-11-20 05:36:07,535 INFO L226 Difference]: Without dead ends: 908 [2021-11-20 05:36:07,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:07,537 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 168 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:07,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 1137 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:07,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2021-11-20 05:36:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 729. [2021-11-20 05:36:07,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 645 states have (on average 1.3705426356589148) internal successors, (884), 653 states have internal predecessors, (884), 60 states have call successors, (60), 24 states have call predecessors, (60), 23 states have return successors, (83), 52 states have call predecessors, (83), 52 states have call successors, (83) [2021-11-20 05:36:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1027 transitions. [2021-11-20 05:36:07,575 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1027 transitions. Word has length 34 [2021-11-20 05:36:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:07,575 INFO L470 AbstractCegarLoop]: Abstraction has 729 states and 1027 transitions. [2021-11-20 05:36:07,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1027 transitions. [2021-11-20 05:36:07,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 05:36:07,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:07,578 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] [2021-11-20 05:36:07,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 05:36:07,579 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:07,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash -703098920, now seen corresponding path program 1 times [2021-11-20 05:36:07,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:07,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601371450] [2021-11-20 05:36:07,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:07,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:36:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:07,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:07,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601371450] [2021-11-20 05:36:07,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601371450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:07,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:07,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:07,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877437893] [2021-11-20 05:36:07,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:07,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:07,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:07,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:07,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:07,640 INFO L87 Difference]: Start difference. First operand 729 states and 1027 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:07,876 INFO L93 Difference]: Finished difference Result 757 states and 1061 transitions. [2021-11-20 05:36:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:07,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-11-20 05:36:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:07,883 INFO L225 Difference]: With dead ends: 757 [2021-11-20 05:36:07,883 INFO L226 Difference]: Without dead ends: 744 [2021-11-20 05:36:07,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:07,884 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 85 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:07,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 1406 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:07,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-11-20 05:36:07,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 727. [2021-11-20 05:36:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 644 states have (on average 1.3695652173913044) internal successors, (882), 652 states have internal predecessors, (882), 59 states have call successors, (59), 24 states have call predecessors, (59), 23 states have return successors, (82), 51 states have call predecessors, (82), 51 states have call successors, (82) [2021-11-20 05:36:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1023 transitions. [2021-11-20 05:36:07,914 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1023 transitions. Word has length 33 [2021-11-20 05:36:07,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:07,915 INFO L470 AbstractCegarLoop]: Abstraction has 727 states and 1023 transitions. [2021-11-20 05:36:07,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1023 transitions. [2021-11-20 05:36:07,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 05:36:07,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:07,917 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] [2021-11-20 05:36:07,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 05:36:07,918 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:07,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:07,918 INFO L85 PathProgramCache]: Analyzing trace with hash -698430317, now seen corresponding path program 1 times [2021-11-20 05:36:07,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:07,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289390662] [2021-11-20 05:36:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:07,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:08,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:08,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289390662] [2021-11-20 05:36:08,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289390662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:08,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:08,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:08,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970430169] [2021-11-20 05:36:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:08,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:08,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:08,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:08,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:08,013 INFO L87 Difference]: Start difference. First operand 727 states and 1023 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:08,563 INFO L93 Difference]: Finished difference Result 756 states and 1046 transitions. [2021-11-20 05:36:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:08,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-20 05:36:08,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:08,569 INFO L225 Difference]: With dead ends: 756 [2021-11-20 05:36:08,570 INFO L226 Difference]: Without dead ends: 756 [2021-11-20 05:36:08,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:08,571 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 724 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:08,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 941 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:08,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-11-20 05:36:08,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 718. [2021-11-20 05:36:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 635 states have (on average 1.3559055118110237) internal successors, (861), 643 states have internal predecessors, (861), 59 states have call successors, (59), 24 states have call predecessors, (59), 23 states have return successors, (82), 51 states have call predecessors, (82), 51 states have call successors, (82) [2021-11-20 05:36:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1002 transitions. [2021-11-20 05:36:08,602 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1002 transitions. Word has length 35 [2021-11-20 05:36:08,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:08,602 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 1002 transitions. [2021-11-20 05:36:08,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:08,603 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1002 transitions. [2021-11-20 05:36:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 05:36:08,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:08,606 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] [2021-11-20 05:36:08,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 05:36:08,607 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:08,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1034428387, now seen corresponding path program 1 times [2021-11-20 05:36:08,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:08,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531535262] [2021-11-20 05:36:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:08,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:08,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:36:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:08,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:08,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531535262] [2021-11-20 05:36:08,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531535262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:08,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:08,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:08,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852139689] [2021-11-20 05:36:08,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:08,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:08,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:08,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:08,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:08,662 INFO L87 Difference]: Start difference. First operand 718 states and 1002 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:08,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:08,920 INFO L93 Difference]: Finished difference Result 746 states and 1036 transitions. [2021-11-20 05:36:08,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:08,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-20 05:36:08,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:08,926 INFO L225 Difference]: With dead ends: 746 [2021-11-20 05:36:08,927 INFO L226 Difference]: Without dead ends: 733 [2021-11-20 05:36:08,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:08,928 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 85 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:08,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 1393 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-11-20 05:36:08,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 716. [2021-11-20 05:36:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 634 states have (on average 1.3548895899053628) internal successors, (859), 642 states have internal predecessors, (859), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (81), 50 states have call predecessors, (81), 50 states have call successors, (81) [2021-11-20 05:36:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 998 transitions. [2021-11-20 05:36:08,957 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 998 transitions. Word has length 35 [2021-11-20 05:36:08,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:08,957 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 998 transitions. [2021-11-20 05:36:08,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:08,958 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 998 transitions. [2021-11-20 05:36:08,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 05:36:08,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:08,960 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] [2021-11-20 05:36:08,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 05:36:08,961 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash 447341985, now seen corresponding path program 1 times [2021-11-20 05:36:08,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:08,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332349619] [2021-11-20 05:36:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:08,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:09,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:09,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332349619] [2021-11-20 05:36:09,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332349619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:09,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:09,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:36:09,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291910568] [2021-11-20 05:36:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:09,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:09,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:09,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:09,005 INFO L87 Difference]: Start difference. First operand 716 states and 998 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:09,061 INFO L93 Difference]: Finished difference Result 724 states and 1009 transitions. [2021-11-20 05:36:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:09,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-20 05:36:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:09,067 INFO L225 Difference]: With dead ends: 724 [2021-11-20 05:36:09,067 INFO L226 Difference]: Without dead ends: 724 [2021-11-20 05:36:09,067 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 [2021-11-20 05:36:09,068 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 5 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:09,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 772 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-11-20 05:36:09,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2021-11-20 05:36:09,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 642 states have (on average 1.355140186915888) internal successors, (870), 650 states have internal predecessors, (870), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (81), 50 states have call predecessors, (81), 50 states have call successors, (81) [2021-11-20 05:36:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1009 transitions. [2021-11-20 05:36:09,097 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1009 transitions. Word has length 37 [2021-11-20 05:36:09,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:09,098 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 1009 transitions. [2021-11-20 05:36:09,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:09,098 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1009 transitions. [2021-11-20 05:36:09,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 05:36:09,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:09,101 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] [2021-11-20 05:36:09,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 05:36:09,101 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:09,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:09,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1984798963, now seen corresponding path program 1 times [2021-11-20 05:36:09,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:09,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954437957] [2021-11-20 05:36:09,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:09,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:09,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:36:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:09,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:09,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954437957] [2021-11-20 05:36:09,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954437957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:09,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:09,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:36:09,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179168314] [2021-11-20 05:36:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:09,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:09,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:09,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:09,169 INFO L87 Difference]: Start difference. First operand 724 states and 1009 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:09,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:09,465 INFO L93 Difference]: Finished difference Result 746 states and 1033 transitions. [2021-11-20 05:36:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:09,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-11-20 05:36:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:09,471 INFO L225 Difference]: With dead ends: 746 [2021-11-20 05:36:09,472 INFO L226 Difference]: Without dead ends: 731 [2021-11-20 05:36:09,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:09,473 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 96 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:09,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 1718 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-11-20 05:36:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 724. [2021-11-20 05:36:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 642 states have (on average 1.3364485981308412) internal successors, (858), 650 states have internal predecessors, (858), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (81), 50 states have call predecessors, (81), 50 states have call successors, (81) [2021-11-20 05:36:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 997 transitions. [2021-11-20 05:36:09,502 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 997 transitions. Word has length 38 [2021-11-20 05:36:09,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:09,502 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 997 transitions. [2021-11-20 05:36:09,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:09,503 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 997 transitions. [2021-11-20 05:36:09,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 05:36:09,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:09,505 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] [2021-11-20 05:36:09,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 05:36:09,506 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:09,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:09,506 INFO L85 PathProgramCache]: Analyzing trace with hash -615689806, now seen corresponding path program 1 times [2021-11-20 05:36:09,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:09,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311256616] [2021-11-20 05:36:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:09,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:36:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:09,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:09,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311256616] [2021-11-20 05:36:09,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311256616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:09,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:09,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:09,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761345584] [2021-11-20 05:36:09,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:09,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:09,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:09,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:09,580 INFO L87 Difference]: Start difference. First operand 724 states and 997 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:10,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:10,061 INFO L93 Difference]: Finished difference Result 744 states and 1017 transitions. [2021-11-20 05:36:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:36:10,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-11-20 05:36:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:10,066 INFO L225 Difference]: With dead ends: 744 [2021-11-20 05:36:10,067 INFO L226 Difference]: Without dead ends: 744 [2021-11-20 05:36:10,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:36:10,068 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 602 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:10,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 1159 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:10,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-11-20 05:36:10,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 734. [2021-11-20 05:36:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 649 states have (on average 1.3312788906009245) internal successors, (864), 660 states have internal predecessors, (864), 58 states have call successors, (58), 24 states have call predecessors, (58), 26 states have return successors, (85), 50 states have call predecessors, (85), 50 states have call successors, (85) [2021-11-20 05:36:10,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1007 transitions. [2021-11-20 05:36:10,094 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1007 transitions. Word has length 38 [2021-11-20 05:36:10,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:10,095 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 1007 transitions. [2021-11-20 05:36:10,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:10,095 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1007 transitions. [2021-11-20 05:36:10,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 05:36:10,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:10,097 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] [2021-11-20 05:36:10,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 05:36:10,098 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:10,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:10,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1374115068, now seen corresponding path program 1 times [2021-11-20 05:36:10,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:10,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790363804] [2021-11-20 05:36:10,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:10,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:10,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:36:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:10,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:10,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790363804] [2021-11-20 05:36:10,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790363804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:10,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:10,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:10,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972550630] [2021-11-20 05:36:10,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:10,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:10,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:10,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:10,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:10,199 INFO L87 Difference]: Start difference. First operand 734 states and 1007 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:10,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:10,508 INFO L93 Difference]: Finished difference Result 751 states and 1024 transitions. [2021-11-20 05:36:10,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:10,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-11-20 05:36:10,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:10,514 INFO L225 Difference]: With dead ends: 751 [2021-11-20 05:36:10,514 INFO L226 Difference]: Without dead ends: 732 [2021-11-20 05:36:10,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:10,515 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 108 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:10,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 2003 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:10,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-20 05:36:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 726. [2021-11-20 05:36:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 642 states have (on average 1.3302180685358256) internal successors, (854), 653 states have internal predecessors, (854), 57 states have call successors, (57), 24 states have call predecessors, (57), 26 states have return successors, (84), 49 states have call predecessors, (84), 49 states have call successors, (84) [2021-11-20 05:36:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 995 transitions. [2021-11-20 05:36:10,544 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 995 transitions. Word has length 39 [2021-11-20 05:36:10,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:10,544 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 995 transitions. [2021-11-20 05:36:10,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 995 transitions. [2021-11-20 05:36:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 05:36:10,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:10,547 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] [2021-11-20 05:36:10,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 05:36:10,548 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1441558337, now seen corresponding path program 1 times [2021-11-20 05:36:10,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:10,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700193893] [2021-11-20 05:36:10,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:10,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:10,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:10,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700193893] [2021-11-20 05:36:10,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700193893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:10,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:10,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:36:10,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713818374] [2021-11-20 05:36:10,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:10,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:10,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:10,620 INFO L87 Difference]: Start difference. First operand 726 states and 995 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:10,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:10,892 INFO L93 Difference]: Finished difference Result 745 states and 1015 transitions. [2021-11-20 05:36:10,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:10,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-11-20 05:36:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:10,899 INFO L225 Difference]: With dead ends: 745 [2021-11-20 05:36:10,899 INFO L226 Difference]: Without dead ends: 724 [2021-11-20 05:36:10,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:10,900 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 312 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:10,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1351 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:10,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-11-20 05:36:10,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 718. [2021-11-20 05:36:10,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 634 states have (on average 1.3296529968454258) internal successors, (843), 645 states have internal predecessors, (843), 57 states have call successors, (57), 24 states have call predecessors, (57), 26 states have return successors, (84), 49 states have call predecessors, (84), 49 states have call successors, (84) [2021-11-20 05:36:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 984 transitions. [2021-11-20 05:36:10,929 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 984 transitions. Word has length 39 [2021-11-20 05:36:10,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:10,930 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 984 transitions. [2021-11-20 05:36:10,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 984 transitions. [2021-11-20 05:36:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 05:36:10,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:10,933 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] [2021-11-20 05:36:10,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 05:36:10,933 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:10,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1087199807, now seen corresponding path program 1 times [2021-11-20 05:36:10,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:10,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393926966] [2021-11-20 05:36:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:10,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:11,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:11,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393926966] [2021-11-20 05:36:11,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393926966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:11,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:11,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:11,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186275045] [2021-11-20 05:36:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:11,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:11,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:11,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:11,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:11,023 INFO L87 Difference]: Start difference. First operand 718 states and 984 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:11,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:11,394 INFO L93 Difference]: Finished difference Result 738 states and 1006 transitions. [2021-11-20 05:36:11,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:11,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-11-20 05:36:11,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:11,403 INFO L225 Difference]: With dead ends: 738 [2021-11-20 05:36:11,405 INFO L226 Difference]: Without dead ends: 738 [2021-11-20 05:36:11,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:11,406 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 84 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:11,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 1875 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2021-11-20 05:36:11,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 723. [2021-11-20 05:36:11,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 638 states have (on average 1.3275862068965518) internal successors, (847), 649 states have internal predecessors, (847), 57 states have call successors, (57), 24 states have call predecessors, (57), 27 states have return successors, (86), 50 states have call predecessors, (86), 49 states have call successors, (86) [2021-11-20 05:36:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 990 transitions. [2021-11-20 05:36:11,435 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 990 transitions. Word has length 39 [2021-11-20 05:36:11,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:11,435 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 990 transitions. [2021-11-20 05:36:11,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:11,436 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 990 transitions. [2021-11-20 05:36:11,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-20 05:36:11,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:11,438 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] [2021-11-20 05:36:11,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 05:36:11,438 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:11,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1022695597, now seen corresponding path program 1 times [2021-11-20 05:36:11,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:11,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670117795] [2021-11-20 05:36:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:11,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:11,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:36:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:11,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:11,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670117795] [2021-11-20 05:36:11,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670117795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:11,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:11,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:11,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513585664] [2021-11-20 05:36:11,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:11,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:11,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:11,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:11,517 INFO L87 Difference]: Start difference. First operand 723 states and 990 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:11,859 INFO L93 Difference]: Finished difference Result 545 states and 715 transitions. [2021-11-20 05:36:11,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:11,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-11-20 05:36:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:11,864 INFO L225 Difference]: With dead ends: 545 [2021-11-20 05:36:11,864 INFO L226 Difference]: Without dead ends: 545 [2021-11-20 05:36:11,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:11,865 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 488 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:11,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 962 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-11-20 05:36:11,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 504. [2021-11-20 05:36:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 441 states have (on average 1.2947845804988662) internal successors, (571), 451 states have internal predecessors, (571), 42 states have call successors, (42), 17 states have call predecessors, (42), 20 states have return successors, (50), 36 states have call predecessors, (50), 34 states have call successors, (50) [2021-11-20 05:36:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 663 transitions. [2021-11-20 05:36:11,884 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 663 transitions. Word has length 41 [2021-11-20 05:36:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:11,884 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 663 transitions. [2021-11-20 05:36:11,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 663 transitions. [2021-11-20 05:36:11,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 05:36:11,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:11,886 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] [2021-11-20 05:36:11,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 05:36:11,887 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:11,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:11,888 INFO L85 PathProgramCache]: Analyzing trace with hash 402911191, now seen corresponding path program 1 times [2021-11-20 05:36:11,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:11,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579852015] [2021-11-20 05:36:11,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:11,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:11,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:36:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:11,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:11,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579852015] [2021-11-20 05:36:11,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579852015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:11,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:11,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:36:11,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141162436] [2021-11-20 05:36:11,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:11,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:36:11,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:11,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:36:11,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:36:11,938 INFO L87 Difference]: Start difference. First operand 504 states and 663 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:12,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:12,231 INFO L93 Difference]: Finished difference Result 637 states and 834 transitions. [2021-11-20 05:36:12,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:12,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-11-20 05:36:12,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:12,236 INFO L225 Difference]: With dead ends: 637 [2021-11-20 05:36:12,237 INFO L226 Difference]: Without dead ends: 637 [2021-11-20 05:36:12,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:12,237 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 183 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:12,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 990 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:12,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-11-20 05:36:12,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 574. [2021-11-20 05:36:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 504 states have (on average 1.2837301587301588) internal successors, (647), 508 states have internal predecessors, (647), 44 states have call successors, (44), 19 states have call predecessors, (44), 25 states have return successors, (63), 47 states have call predecessors, (63), 36 states have call successors, (63) [2021-11-20 05:36:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 754 transitions. [2021-11-20 05:36:12,261 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 754 transitions. Word has length 40 [2021-11-20 05:36:12,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:12,262 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 754 transitions. [2021-11-20 05:36:12,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:12,262 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 754 transitions. [2021-11-20 05:36:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 05:36:12,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:12,264 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] [2021-11-20 05:36:12,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 05:36:12,265 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:12,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1016704727, now seen corresponding path program 1 times [2021-11-20 05:36:12,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:12,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003649861] [2021-11-20 05:36:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:12,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:12,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:36:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:12,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:12,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003649861] [2021-11-20 05:36:12,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003649861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:12,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:12,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:36:12,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563808203] [2021-11-20 05:36:12,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:12,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:12,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:12,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:12,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:12,356 INFO L87 Difference]: Start difference. First operand 574 states and 754 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:12,801 INFO L93 Difference]: Finished difference Result 570 states and 750 transitions. [2021-11-20 05:36:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:12,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-11-20 05:36:12,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:12,807 INFO L225 Difference]: With dead ends: 570 [2021-11-20 05:36:12,807 INFO L226 Difference]: Without dead ends: 570 [2021-11-20 05:36:12,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:36:12,808 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 461 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:12,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 1087 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-11-20 05:36:12,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 531. [2021-11-20 05:36:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 465 states have (on average 1.2881720430107526) internal successors, (599), 476 states have internal predecessors, (599), 43 states have call successors, (43), 18 states have call predecessors, (43), 22 states have return successors, (53), 37 states have call predecessors, (53), 35 states have call successors, (53) [2021-11-20 05:36:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 695 transitions. [2021-11-20 05:36:12,830 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 695 transitions. Word has length 40 [2021-11-20 05:36:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:12,830 INFO L470 AbstractCegarLoop]: Abstraction has 531 states and 695 transitions. [2021-11-20 05:36:12,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 695 transitions. [2021-11-20 05:36:12,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-20 05:36:12,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:12,833 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] [2021-11-20 05:36:12,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 05:36:12,834 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:12,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash 58663888, now seen corresponding path program 1 times [2021-11-20 05:36:12,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:12,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999708664] [2021-11-20 05:36:12,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:12,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:12,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:36:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:12,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:12,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999708664] [2021-11-20 05:36:12,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999708664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:12,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:12,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:12,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30656100] [2021-11-20 05:36:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:12,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:12,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:12,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:12,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:12,923 INFO L87 Difference]: Start difference. First operand 531 states and 695 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:13,410 INFO L93 Difference]: Finished difference Result 554 states and 720 transitions. [2021-11-20 05:36:13,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:13,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-11-20 05:36:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:13,415 INFO L225 Difference]: With dead ends: 554 [2021-11-20 05:36:13,415 INFO L226 Difference]: Without dead ends: 553 [2021-11-20 05:36:13,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:13,416 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 82 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:13,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 1992 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-11-20 05:36:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 537. [2021-11-20 05:36:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 471 states have (on average 1.2845010615711252) internal successors, (605), 482 states have internal predecessors, (605), 43 states have call successors, (43), 18 states have call predecessors, (43), 22 states have return successors, (53), 37 states have call predecessors, (53), 35 states have call successors, (53) [2021-11-20 05:36:13,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 701 transitions. [2021-11-20 05:36:13,437 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 701 transitions. Word has length 41 [2021-11-20 05:36:13,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:13,437 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 701 transitions. [2021-11-20 05:36:13,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 701 transitions. [2021-11-20 05:36:13,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-20 05:36:13,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:13,440 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] [2021-11-20 05:36:13,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 05:36:13,441 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:13,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash 58387058, now seen corresponding path program 1 times [2021-11-20 05:36:13,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:13,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806088218] [2021-11-20 05:36:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:13,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:13,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:36:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:13,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:13,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806088218] [2021-11-20 05:36:13,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806088218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:13,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:13,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:13,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664299228] [2021-11-20 05:36:13,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:13,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:13,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:13,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:13,549 INFO L87 Difference]: Start difference. First operand 537 states and 701 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:13,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:13,992 INFO L93 Difference]: Finished difference Result 592 states and 774 transitions. [2021-11-20 05:36:13,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:13,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-11-20 05:36:13,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:13,997 INFO L225 Difference]: With dead ends: 592 [2021-11-20 05:36:13,997 INFO L226 Difference]: Without dead ends: 582 [2021-11-20 05:36:13,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:13,999 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 287 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:13,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 1907 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:14,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2021-11-20 05:36:14,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 543. [2021-11-20 05:36:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 476 states have (on average 1.281512605042017) internal successors, (610), 488 states have internal predecessors, (610), 43 states have call successors, (43), 18 states have call predecessors, (43), 23 states have return successors, (60), 37 states have call predecessors, (60), 35 states have call successors, (60) [2021-11-20 05:36:14,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 713 transitions. [2021-11-20 05:36:14,020 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 713 transitions. Word has length 41 [2021-11-20 05:36:14,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:14,020 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 713 transitions. [2021-11-20 05:36:14,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:14,021 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 713 transitions. [2021-11-20 05:36:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-20 05:36:14,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:14,026 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] [2021-11-20 05:36:14,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 05:36:14,027 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:14,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1058782467, now seen corresponding path program 1 times [2021-11-20 05:36:14,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:14,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965442298] [2021-11-20 05:36:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:14,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:14,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:36:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:14,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:14,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965442298] [2021-11-20 05:36:14,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965442298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:14,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:14,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:36:14,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451086406] [2021-11-20 05:36:14,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:14,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:14,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:14,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:14,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:14,122 INFO L87 Difference]: Start difference. First operand 543 states and 713 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:14,649 INFO L93 Difference]: Finished difference Result 608 states and 792 transitions. [2021-11-20 05:36:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:14,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-11-20 05:36:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:14,655 INFO L225 Difference]: With dead ends: 608 [2021-11-20 05:36:14,655 INFO L226 Difference]: Without dead ends: 596 [2021-11-20 05:36:14,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:36:14,656 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 634 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:14,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [646 Valid, 1128 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:14,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-20 05:36:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 529. [2021-11-20 05:36:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 464 states have (on average 1.2866379310344827) internal successors, (597), 475 states have internal predecessors, (597), 42 states have call successors, (42), 18 states have call predecessors, (42), 22 states have return successors, (52), 36 states have call predecessors, (52), 34 states have call successors, (52) [2021-11-20 05:36:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 691 transitions. [2021-11-20 05:36:14,677 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 691 transitions. Word has length 42 [2021-11-20 05:36:14,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:14,678 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 691 transitions. [2021-11-20 05:36:14,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 691 transitions. [2021-11-20 05:36:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 05:36:14,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:14,685 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] [2021-11-20 05:36:14,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 05:36:14,686 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:14,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash 109080568, now seen corresponding path program 1 times [2021-11-20 05:36:14,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:14,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902428841] [2021-11-20 05:36:14,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:14,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:14,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:36:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:14,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:14,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902428841] [2021-11-20 05:36:14,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902428841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:14,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:14,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:14,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959942546] [2021-11-20 05:36:14,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:14,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:14,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:14,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:14,891 INFO L87 Difference]: Start difference. First operand 529 states and 691 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:15,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:15,211 INFO L93 Difference]: Finished difference Result 495 states and 639 transitions. [2021-11-20 05:36:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-11-20 05:36:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:15,216 INFO L225 Difference]: With dead ends: 495 [2021-11-20 05:36:15,216 INFO L226 Difference]: Without dead ends: 495 [2021-11-20 05:36:15,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:15,217 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 106 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:15,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1838 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:15,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-20 05:36:15,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 483. [2021-11-20 05:36:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 424 states have (on average 1.2688679245283019) internal successors, (538), 431 states have internal predecessors, (538), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (47), 35 states have call predecessors, (47), 33 states have call successors, (47) [2021-11-20 05:36:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 625 transitions. [2021-11-20 05:36:15,240 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 625 transitions. Word has length 44 [2021-11-20 05:36:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:15,240 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 625 transitions. [2021-11-20 05:36:15,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 625 transitions. [2021-11-20 05:36:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 05:36:15,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:15,243 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] [2021-11-20 05:36:15,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 05:36:15,245 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:15,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1762527581, now seen corresponding path program 1 times [2021-11-20 05:36:15,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:15,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952690795] [2021-11-20 05:36:15,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:15,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:36:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:15,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:15,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952690795] [2021-11-20 05:36:15,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952690795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:15,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:15,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:36:15,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891800149] [2021-11-20 05:36:15,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:15,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:15,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:15,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:15,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:15,384 INFO L87 Difference]: Start difference. First operand 483 states and 625 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:15,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:15,777 INFO L93 Difference]: Finished difference Result 495 states and 637 transitions. [2021-11-20 05:36:15,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:15,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-11-20 05:36:15,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:15,781 INFO L225 Difference]: With dead ends: 495 [2021-11-20 05:36:15,781 INFO L226 Difference]: Without dead ends: 495 [2021-11-20 05:36:15,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:15,783 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 412 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:15,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 1054 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:15,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-20 05:36:15,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 483. [2021-11-20 05:36:15,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 424 states have (on average 1.2641509433962264) internal successors, (536), 431 states have internal predecessors, (536), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (47), 35 states have call predecessors, (47), 33 states have call successors, (47) [2021-11-20 05:36:15,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 623 transitions. [2021-11-20 05:36:15,799 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 623 transitions. Word has length 46 [2021-11-20 05:36:15,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:15,799 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 623 transitions. [2021-11-20 05:36:15,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 623 transitions. [2021-11-20 05:36:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 05:36:15,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:15,802 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] [2021-11-20 05:36:15,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 05:36:15,803 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:15,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash -995885365, now seen corresponding path program 1 times [2021-11-20 05:36:15,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:15,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886123074] [2021-11-20 05:36:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:15,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:36:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:15,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:15,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886123074] [2021-11-20 05:36:15,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886123074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:15,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:15,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:15,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177302735] [2021-11-20 05:36:15,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:15,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:15,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:15,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:15,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:15,910 INFO L87 Difference]: Start difference. First operand 483 states and 623 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:16,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:16,363 INFO L93 Difference]: Finished difference Result 504 states and 645 transitions. [2021-11-20 05:36:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:16,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-11-20 05:36:16,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:16,367 INFO L225 Difference]: With dead ends: 504 [2021-11-20 05:36:16,367 INFO L226 Difference]: Without dead ends: 491 [2021-11-20 05:36:16,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:16,368 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 78 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:16,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 1985 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-11-20 05:36:16,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 479. [2021-11-20 05:36:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 421 states have (on average 1.2636579572446556) internal successors, (532), 428 states have internal predecessors, (532), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (46), 34 states have call predecessors, (46), 32 states have call successors, (46) [2021-11-20 05:36:16,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 617 transitions. [2021-11-20 05:36:16,389 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 617 transitions. Word has length 46 [2021-11-20 05:36:16,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:16,390 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 617 transitions. [2021-11-20 05:36:16,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:16,390 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 617 transitions. [2021-11-20 05:36:16,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 05:36:16,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:16,392 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] [2021-11-20 05:36:16,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 05:36:16,393 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:16,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:16,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1515060383, now seen corresponding path program 1 times [2021-11-20 05:36:16,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:16,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987568824] [2021-11-20 05:36:16,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:16,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:16,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:36:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:16,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:16,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987568824] [2021-11-20 05:36:16,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987568824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:16,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:16,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:36:16,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613113157] [2021-11-20 05:36:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:16,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:36:16,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:36:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:16,512 INFO L87 Difference]: Start difference. First operand 479 states and 617 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:17,124 INFO L93 Difference]: Finished difference Result 505 states and 645 transitions. [2021-11-20 05:36:17,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:36:17,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-11-20 05:36:17,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:17,128 INFO L225 Difference]: With dead ends: 505 [2021-11-20 05:36:17,129 INFO L226 Difference]: Without dead ends: 487 [2021-11-20 05:36:17,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:36:17,130 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 153 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:17,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 2135 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:17,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-11-20 05:36:17,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 474. [2021-11-20 05:36:17,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 416 states have (on average 1.2620192307692308) internal successors, (525), 424 states have internal predecessors, (525), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (45), 33 states have call predecessors, (45), 32 states have call successors, (45) [2021-11-20 05:36:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 609 transitions. [2021-11-20 05:36:17,146 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 609 transitions. Word has length 47 [2021-11-20 05:36:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:17,146 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 609 transitions. [2021-11-20 05:36:17,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 609 transitions. [2021-11-20 05:36:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 05:36:17,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:17,149 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] [2021-11-20 05:36:17,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 05:36:17,150 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:17,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2101663171, now seen corresponding path program 1 times [2021-11-20 05:36:17,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:17,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246231608] [2021-11-20 05:36:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:17,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:17,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 05:36:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:17,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:17,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246231608] [2021-11-20 05:36:17,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246231608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:17,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:17,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:17,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770793758] [2021-11-20 05:36:17,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:17,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:17,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:17,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:17,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:17,224 INFO L87 Difference]: Start difference. First operand 474 states and 609 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:17,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:17,745 INFO L93 Difference]: Finished difference Result 513 states and 650 transitions. [2021-11-20 05:36:17,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:17,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2021-11-20 05:36:17,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:17,750 INFO L225 Difference]: With dead ends: 513 [2021-11-20 05:36:17,750 INFO L226 Difference]: Without dead ends: 498 [2021-11-20 05:36:17,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:17,751 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 171 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:17,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 1525 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-11-20 05:36:17,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 473. [2021-11-20 05:36:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 416 states have (on average 1.2596153846153846) internal successors, (524), 423 states have internal predecessors, (524), 38 states have call successors, (38), 17 states have call predecessors, (38), 18 states have return successors, (44), 33 states have call predecessors, (44), 31 states have call successors, (44) [2021-11-20 05:36:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 606 transitions. [2021-11-20 05:36:17,767 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 606 transitions. Word has length 48 [2021-11-20 05:36:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:17,767 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 606 transitions. [2021-11-20 05:36:17,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 606 transitions. [2021-11-20 05:36:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-20 05:36:17,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:17,770 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] [2021-11-20 05:36:17,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 05:36:17,771 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:17,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash -217509127, now seen corresponding path program 1 times [2021-11-20 05:36:17,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:17,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413960932] [2021-11-20 05:36:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:17,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:36:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:17,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:17,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413960932] [2021-11-20 05:36:17,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413960932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:17,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:17,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:36:17,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244105688] [2021-11-20 05:36:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:17,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:36:17,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:17,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:36:17,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:36:17,835 INFO L87 Difference]: Start difference. First operand 473 states and 606 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:18,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:18,073 INFO L93 Difference]: Finished difference Result 564 states and 717 transitions. [2021-11-20 05:36:18,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:18,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-11-20 05:36:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:18,077 INFO L225 Difference]: With dead ends: 564 [2021-11-20 05:36:18,077 INFO L226 Difference]: Without dead ends: 564 [2021-11-20 05:36:18,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:18,078 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 192 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:18,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 889 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:18,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-11-20 05:36:18,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 526. [2021-11-20 05:36:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 464 states have (on average 1.2607758620689655) internal successors, (585), 470 states have internal predecessors, (585), 40 states have call successors, (40), 19 states have call predecessors, (40), 21 states have return successors, (50), 37 states have call predecessors, (50), 34 states have call successors, (50) [2021-11-20 05:36:18,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 675 transitions. [2021-11-20 05:36:18,096 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 675 transitions. Word has length 49 [2021-11-20 05:36:18,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:18,096 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 675 transitions. [2021-11-20 05:36:18,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 675 transitions. [2021-11-20 05:36:18,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 05:36:18,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:18,099 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] [2021-11-20 05:36:18,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 05:36:18,100 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:18,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:18,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1102392332, now seen corresponding path program 1 times [2021-11-20 05:36:18,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:18,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627402121] [2021-11-20 05:36:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:18,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:18,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:18,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:18,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627402121] [2021-11-20 05:36:18,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627402121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:18,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:18,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:18,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410629334] [2021-11-20 05:36:18,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:18,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:18,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:18,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:18,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:18,164 INFO L87 Difference]: Start difference. First operand 526 states and 675 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:18,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:18,403 INFO L93 Difference]: Finished difference Result 544 states and 698 transitions. [2021-11-20 05:36:18,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:18,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-11-20 05:36:18,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:18,407 INFO L225 Difference]: With dead ends: 544 [2021-11-20 05:36:18,408 INFO L226 Difference]: Without dead ends: 544 [2021-11-20 05:36:18,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:18,408 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 74 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:18,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 1153 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:18,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-11-20 05:36:18,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 528. [2021-11-20 05:36:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 466 states have (on average 1.259656652360515) internal successors, (587), 472 states have internal predecessors, (587), 40 states have call successors, (40), 19 states have call predecessors, (40), 21 states have return successors, (50), 37 states have call predecessors, (50), 34 states have call successors, (50) [2021-11-20 05:36:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 677 transitions. [2021-11-20 05:36:18,426 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 677 transitions. Word has length 48 [2021-11-20 05:36:18,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:18,426 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 677 transitions. [2021-11-20 05:36:18,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 677 transitions. [2021-11-20 05:36:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 05:36:18,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:18,429 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] [2021-11-20 05:36:18,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 05:36:18,430 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash -460835788, now seen corresponding path program 1 times [2021-11-20 05:36:18,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:18,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984635045] [2021-11-20 05:36:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:18,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:18,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:18,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:18,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984635045] [2021-11-20 05:36:18,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984635045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:18,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:18,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:18,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906931607] [2021-11-20 05:36:18,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:18,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:18,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:18,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:18,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:18,516 INFO L87 Difference]: Start difference. First operand 528 states and 677 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:18,882 INFO L93 Difference]: Finished difference Result 528 states and 672 transitions. [2021-11-20 05:36:18,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-11-20 05:36:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:18,887 INFO L225 Difference]: With dead ends: 528 [2021-11-20 05:36:18,887 INFO L226 Difference]: Without dead ends: 528 [2021-11-20 05:36:18,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:18,888 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 82 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:18,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 2047 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-20 05:36:18,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 516. [2021-11-20 05:36:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 455 states have (on average 1.254945054945055) internal successors, (571), 460 states have internal predecessors, (571), 39 states have call successors, (39), 19 states have call predecessors, (39), 21 states have return successors, (50), 37 states have call predecessors, (50), 34 states have call successors, (50) [2021-11-20 05:36:18,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 660 transitions. [2021-11-20 05:36:18,904 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 660 transitions. Word has length 48 [2021-11-20 05:36:18,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:18,905 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 660 transitions. [2021-11-20 05:36:18,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 660 transitions. [2021-11-20 05:36:18,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 05:36:18,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:18,908 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] [2021-11-20 05:36:18,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-20 05:36:18,908 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:18,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1942433313, now seen corresponding path program 1 times [2021-11-20 05:36:18,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:18,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986239428] [2021-11-20 05:36:18,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:18,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:18,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 05:36:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:19,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:19,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:19,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986239428] [2021-11-20 05:36:19,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986239428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:19,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:19,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:19,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849195986] [2021-11-20 05:36:19,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:19,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:19,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:19,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:19,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:19,005 INFO L87 Difference]: Start difference. First operand 516 states and 660 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:19,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:19,359 INFO L93 Difference]: Finished difference Result 557 states and 708 transitions. [2021-11-20 05:36:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:19,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-11-20 05:36:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:19,362 INFO L225 Difference]: With dead ends: 557 [2021-11-20 05:36:19,362 INFO L226 Difference]: Without dead ends: 557 [2021-11-20 05:36:19,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:19,363 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 85 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:19,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1879 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-20 05:36:19,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 516. [2021-11-20 05:36:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 455 states have (on average 1.2505494505494505) internal successors, (569), 460 states have internal predecessors, (569), 39 states have call successors, (39), 19 states have call predecessors, (39), 21 states have return successors, (50), 37 states have call predecessors, (50), 34 states have call successors, (50) [2021-11-20 05:36:19,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 658 transitions. [2021-11-20 05:36:19,381 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 658 transitions. Word has length 51 [2021-11-20 05:36:19,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:19,382 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 658 transitions. [2021-11-20 05:36:19,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 658 transitions. [2021-11-20 05:36:19,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 05:36:19,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:19,385 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] [2021-11-20 05:36:19,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-20 05:36:19,388 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:19,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:19,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1454966093, now seen corresponding path program 1 times [2021-11-20 05:36:19,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:19,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941685186] [2021-11-20 05:36:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:19,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:19,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 05:36:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:19,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:19,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941685186] [2021-11-20 05:36:19,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941685186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:19,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:19,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:19,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094648133] [2021-11-20 05:36:19,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:19,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:19,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:19,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:19,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:19,493 INFO L87 Difference]: Start difference. First operand 516 states and 658 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:20,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:20,003 INFO L93 Difference]: Finished difference Result 526 states and 668 transitions. [2021-11-20 05:36:20,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:20,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-11-20 05:36:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:20,011 INFO L225 Difference]: With dead ends: 526 [2021-11-20 05:36:20,011 INFO L226 Difference]: Without dead ends: 523 [2021-11-20 05:36:20,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:36:20,012 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 128 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:20,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1791 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2021-11-20 05:36:20,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 510. [2021-11-20 05:36:20,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 450 states have (on average 1.2533333333333334) internal successors, (564), 456 states have internal predecessors, (564), 38 states have call successors, (38), 19 states have call predecessors, (38), 21 states have return successors, (48), 35 states have call predecessors, (48), 33 states have call successors, (48) [2021-11-20 05:36:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 650 transitions. [2021-11-20 05:36:20,029 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 650 transitions. Word has length 51 [2021-11-20 05:36:20,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:20,030 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 650 transitions. [2021-11-20 05:36:20,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 650 transitions. [2021-11-20 05:36:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:36:20,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:20,033 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] [2021-11-20 05:36:20,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-20 05:36:20,034 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:20,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1872588061, now seen corresponding path program 1 times [2021-11-20 05:36:20,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:20,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443705810] [2021-11-20 05:36:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:20,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 05:36:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:20,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:20,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443705810] [2021-11-20 05:36:20,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443705810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:20,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:20,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:20,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527564582] [2021-11-20 05:36:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:20,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:20,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:20,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:20,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:20,124 INFO L87 Difference]: Start difference. First operand 510 states and 650 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:20,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:20,577 INFO L93 Difference]: Finished difference Result 518 states and 659 transitions. [2021-11-20 05:36:20,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:20,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2021-11-20 05:36:20,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:20,582 INFO L225 Difference]: With dead ends: 518 [2021-11-20 05:36:20,582 INFO L226 Difference]: Without dead ends: 518 [2021-11-20 05:36:20,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:20,583 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 153 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:20,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1569 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:20,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-11-20 05:36:20,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 492. [2021-11-20 05:36:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 434 states have (on average 1.2580645161290323) internal successors, (546), 440 states have internal predecessors, (546), 37 states have call successors, (37), 18 states have call predecessors, (37), 20 states have return successors, (47), 34 states have call predecessors, (47), 32 states have call successors, (47) [2021-11-20 05:36:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 630 transitions. [2021-11-20 05:36:20,600 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 630 transitions. Word has length 52 [2021-11-20 05:36:20,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:20,601 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 630 transitions. [2021-11-20 05:36:20,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:20,601 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 630 transitions. [2021-11-20 05:36:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 05:36:20,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:20,604 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] [2021-11-20 05:36:20,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-20 05:36:20,604 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:20,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:20,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1296785642, now seen corresponding path program 1 times [2021-11-20 05:36:20,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:20,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043193724] [2021-11-20 05:36:20,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:20,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:36:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:20,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:20,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043193724] [2021-11-20 05:36:20,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043193724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:20,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:20,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:36:20,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926437519] [2021-11-20 05:36:20,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:20,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:36:20,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:20,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:36:20,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:20,694 INFO L87 Difference]: Start difference. First operand 492 states and 630 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:21,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:21,160 INFO L93 Difference]: Finished difference Result 516 states and 656 transitions. [2021-11-20 05:36:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:36:21,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-11-20 05:36:21,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:21,181 INFO L225 Difference]: With dead ends: 516 [2021-11-20 05:36:21,181 INFO L226 Difference]: Without dead ends: 500 [2021-11-20 05:36:21,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:21,182 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 86 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:21,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 2096 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-11-20 05:36:21,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 488. [2021-11-20 05:36:21,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 431 states have (on average 1.25754060324826) internal successors, (542), 437 states have internal predecessors, (542), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (46), 33 states have call predecessors, (46), 31 states have call successors, (46) [2021-11-20 05:36:21,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 624 transitions. [2021-11-20 05:36:21,203 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 624 transitions. Word has length 51 [2021-11-20 05:36:21,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:21,204 INFO L470 AbstractCegarLoop]: Abstraction has 488 states and 624 transitions. [2021-11-20 05:36:21,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 624 transitions. [2021-11-20 05:36:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:36:21,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:21,206 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] [2021-11-20 05:36:21,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-20 05:36:21,207 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:21,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:21,208 INFO L85 PathProgramCache]: Analyzing trace with hash 507953388, now seen corresponding path program 1 times [2021-11-20 05:36:21,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:21,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797674438] [2021-11-20 05:36:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:21,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 05:36:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:21,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:21,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:21,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797674438] [2021-11-20 05:36:21,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797674438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:21,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:21,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:36:21,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992809551] [2021-11-20 05:36:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:21,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:36:21,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:21,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:36:21,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:21,344 INFO L87 Difference]: Start difference. First operand 488 states and 624 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:21,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:21,841 INFO L93 Difference]: Finished difference Result 512 states and 650 transitions. [2021-11-20 05:36:21,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:36:21,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-11-20 05:36:21,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:21,845 INFO L225 Difference]: With dead ends: 512 [2021-11-20 05:36:21,845 INFO L226 Difference]: Without dead ends: 495 [2021-11-20 05:36:21,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:21,849 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 86 mSDsluCounter, 1780 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:21,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 2122 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:21,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-20 05:36:21,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 483. [2021-11-20 05:36:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 427 states have (on average 1.2576112412177987) internal successors, (537), 433 states have internal predecessors, (537), 35 states have call successors, (35), 18 states have call predecessors, (35), 20 states have return successors, (45), 32 states have call predecessors, (45), 30 states have call successors, (45) [2021-11-20 05:36:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 617 transitions. [2021-11-20 05:36:21,870 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 617 transitions. Word has length 52 [2021-11-20 05:36:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:21,872 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 617 transitions. [2021-11-20 05:36:21,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:21,873 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 617 transitions. [2021-11-20 05:36:21,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:36:21,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:21,875 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] [2021-11-20 05:36:21,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-20 05:36:21,876 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:21,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:21,876 INFO L85 PathProgramCache]: Analyzing trace with hash 750831986, now seen corresponding path program 1 times [2021-11-20 05:36:21,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:21,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117635502] [2021-11-20 05:36:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:21,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 05:36:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:21,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:21,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117635502] [2021-11-20 05:36:21,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117635502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:21,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:21,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:36:21,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051684218] [2021-11-20 05:36:21,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:21,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:36:21,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:36:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:21,968 INFO L87 Difference]: Start difference. First operand 483 states and 617 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:22,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:22,417 INFO L93 Difference]: Finished difference Result 507 states and 643 transitions. [2021-11-20 05:36:22,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:36:22,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-11-20 05:36:22,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:22,420 INFO L225 Difference]: With dead ends: 507 [2021-11-20 05:36:22,420 INFO L226 Difference]: Without dead ends: 491 [2021-11-20 05:36:22,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:22,421 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 86 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:22,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 2012 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-11-20 05:36:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 479. [2021-11-20 05:36:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 424 states have (on average 1.2570754716981132) internal successors, (533), 430 states have internal predecessors, (533), 34 states have call successors, (34), 18 states have call predecessors, (34), 20 states have return successors, (44), 31 states have call predecessors, (44), 29 states have call successors, (44) [2021-11-20 05:36:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 611 transitions. [2021-11-20 05:36:22,436 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 611 transitions. Word has length 52 [2021-11-20 05:36:22,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:22,437 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 611 transitions. [2021-11-20 05:36:22,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 611 transitions. [2021-11-20 05:36:22,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:36:22,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:22,439 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] [2021-11-20 05:36:22,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-20 05:36:22,440 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:22,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:22,440 INFO L85 PathProgramCache]: Analyzing trace with hash -831882757, now seen corresponding path program 1 times [2021-11-20 05:36:22,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:22,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947343934] [2021-11-20 05:36:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:22,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:22,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:36:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:22,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947343934] [2021-11-20 05:36:22,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947343934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:22,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:22,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:22,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786279919] [2021-11-20 05:36:22,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:22,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:22,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:22,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:22,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:22,517 INFO L87 Difference]: Start difference. First operand 479 states and 611 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:22,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:22,934 INFO L93 Difference]: Finished difference Result 499 states and 632 transitions. [2021-11-20 05:36:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:22,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-11-20 05:36:22,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:22,938 INFO L225 Difference]: With dead ends: 499 [2021-11-20 05:36:22,938 INFO L226 Difference]: Without dead ends: 482 [2021-11-20 05:36:22,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:22,939 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 76 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:22,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 1827 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:22,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-11-20 05:36:22,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 470. [2021-11-20 05:36:22,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 416 states have (on average 1.2548076923076923) internal successors, (522), 422 states have internal predecessors, (522), 33 states have call successors, (33), 18 states have call predecessors, (33), 20 states have return successors, (43), 30 states have call predecessors, (43), 28 states have call successors, (43) [2021-11-20 05:36:22,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 598 transitions. [2021-11-20 05:36:22,954 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 598 transitions. Word has length 52 [2021-11-20 05:36:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:22,954 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 598 transitions. [2021-11-20 05:36:22,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 598 transitions. [2021-11-20 05:36:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-20 05:36:22,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:22,957 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] [2021-11-20 05:36:22,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-20 05:36:22,957 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:22,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:22,958 INFO L85 PathProgramCache]: Analyzing trace with hash 860965226, now seen corresponding path program 1 times [2021-11-20 05:36:22,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:22,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484314365] [2021-11-20 05:36:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:22,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:36:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:23,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:23,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484314365] [2021-11-20 05:36:23,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484314365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:23,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:23,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:23,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106571132] [2021-11-20 05:36:23,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:23,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:23,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:23,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:23,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:23,077 INFO L87 Difference]: Start difference. First operand 470 states and 598 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:23,413 INFO L93 Difference]: Finished difference Result 614 states and 798 transitions. [2021-11-20 05:36:23,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:23,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-11-20 05:36:23,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:23,417 INFO L225 Difference]: With dead ends: 614 [2021-11-20 05:36:23,417 INFO L226 Difference]: Without dead ends: 614 [2021-11-20 05:36:23,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:23,418 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 137 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:23,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1974 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-11-20 05:36:23,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 470. [2021-11-20 05:36:23,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 416 states have (on average 1.2524038461538463) internal successors, (521), 422 states have internal predecessors, (521), 33 states have call successors, (33), 18 states have call predecessors, (33), 20 states have return successors, (43), 30 states have call predecessors, (43), 28 states have call successors, (43) [2021-11-20 05:36:23,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 597 transitions. [2021-11-20 05:36:23,439 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 597 transitions. Word has length 54 [2021-11-20 05:36:23,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:23,439 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 597 transitions. [2021-11-20 05:36:23,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 597 transitions. [2021-11-20 05:36:23,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 05:36:23,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:23,442 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] [2021-11-20 05:36:23,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-20 05:36:23,442 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:23,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:23,443 INFO L85 PathProgramCache]: Analyzing trace with hash 911699668, now seen corresponding path program 1 times [2021-11-20 05:36:23,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:23,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856109371] [2021-11-20 05:36:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:23,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 05:36:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:23,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:23,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856109371] [2021-11-20 05:36:23,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856109371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:23,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:23,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:36:23,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70619503] [2021-11-20 05:36:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:23,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:36:23,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:36:23,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:23,554 INFO L87 Difference]: Start difference. First operand 470 states and 597 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:24,284 INFO L93 Difference]: Finished difference Result 493 states and 621 transitions. [2021-11-20 05:36:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:36:24,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2021-11-20 05:36:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:24,295 INFO L225 Difference]: With dead ends: 493 [2021-11-20 05:36:24,305 INFO L226 Difference]: Without dead ends: 449 [2021-11-20 05:36:24,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:36:24,306 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 143 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:24,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 2007 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:36:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-20 05:36:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 434. [2021-11-20 05:36:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 389 states have internal predecessors, (479), 31 states have call successors, (31), 17 states have call predecessors, (31), 18 states have return successors, (40), 28 states have call predecessors, (40), 26 states have call successors, (40) [2021-11-20 05:36:24,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 550 transitions. [2021-11-20 05:36:24,320 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 550 transitions. Word has length 56 [2021-11-20 05:36:24,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:24,320 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 550 transitions. [2021-11-20 05:36:24,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:24,321 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 550 transitions. [2021-11-20 05:36:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 05:36:24,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:24,323 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] [2021-11-20 05:36:24,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-20 05:36:24,323 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash 65580225, now seen corresponding path program 1 times [2021-11-20 05:36:24,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:24,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026252013] [2021-11-20 05:36:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:24,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:24,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:36:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:24,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:24,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:24,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026252013] [2021-11-20 05:36:24,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026252013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:24,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:24,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:36:24,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856168519] [2021-11-20 05:36:24,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:24,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:36:24,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:24,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:36:24,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:24,413 INFO L87 Difference]: Start difference. First operand 434 states and 550 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:24,851 INFO L93 Difference]: Finished difference Result 458 states and 576 transitions. [2021-11-20 05:36:24,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:36:24,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2021-11-20 05:36:24,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:24,854 INFO L225 Difference]: With dead ends: 458 [2021-11-20 05:36:24,854 INFO L226 Difference]: Without dead ends: 424 [2021-11-20 05:36:24,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:24,857 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 94 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:24,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1603 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:24,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-11-20 05:36:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 412. [2021-11-20 05:36:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 365 states have (on average 1.2465753424657535) internal successors, (455), 370 states have internal predecessors, (455), 29 states have call successors, (29), 16 states have call predecessors, (29), 17 states have return successors, (38), 26 states have call predecessors, (38), 24 states have call successors, (38) [2021-11-20 05:36:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 522 transitions. [2021-11-20 05:36:24,869 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 522 transitions. Word has length 56 [2021-11-20 05:36:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:24,870 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 522 transitions. [2021-11-20 05:36:24,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 522 transitions. [2021-11-20 05:36:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 05:36:24,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:24,873 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] [2021-11-20 05:36:24,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-20 05:36:24,873 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash -867510019, now seen corresponding path program 1 times [2021-11-20 05:36:24,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:24,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518862467] [2021-11-20 05:36:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:24,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:24,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 05:36:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:24,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-20 05:36:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:24,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:24,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518862467] [2021-11-20 05:36:24,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518862467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:24,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:24,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:36:24,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429021024] [2021-11-20 05:36:24,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:24,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:36:24,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:36:24,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:36:24,989 INFO L87 Difference]: Start difference. First operand 412 states and 522 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:25,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:25,321 INFO L93 Difference]: Finished difference Result 399 states and 496 transitions. [2021-11-20 05:36:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:25,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2021-11-20 05:36:25,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:25,323 INFO L225 Difference]: With dead ends: 399 [2021-11-20 05:36:25,324 INFO L226 Difference]: Without dead ends: 399 [2021-11-20 05:36:25,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:25,324 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 198 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:25,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 1086 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2021-11-20 05:36:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 379. [2021-11-20 05:36:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 337 states have (on average 1.2462908011869436) internal successors, (420), 341 states have internal predecessors, (420), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-20 05:36:25,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 472 transitions. [2021-11-20 05:36:25,336 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 472 transitions. Word has length 62 [2021-11-20 05:36:25,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:25,336 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 472 transitions. [2021-11-20 05:36:25,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:25,337 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 472 transitions. [2021-11-20 05:36:25,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:36:25,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:25,339 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] [2021-11-20 05:36:25,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-20 05:36:25,339 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:25,340 INFO L85 PathProgramCache]: Analyzing trace with hash 695777282, now seen corresponding path program 1 times [2021-11-20 05:36:25,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:25,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259376931] [2021-11-20 05:36:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:25,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 05:36:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-20 05:36:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:25,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:25,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259376931] [2021-11-20 05:36:25,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259376931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:25,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:25,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:36:25,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898864295] [2021-11-20 05:36:25,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:25,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:36:25,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:36:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:25,449 INFO L87 Difference]: Start difference. First operand 379 states and 472 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:25,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:25,889 INFO L93 Difference]: Finished difference Result 425 states and 524 transitions. [2021-11-20 05:36:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:36:25,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 66 [2021-11-20 05:36:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:25,891 INFO L225 Difference]: With dead ends: 425 [2021-11-20 05:36:25,891 INFO L226 Difference]: Without dead ends: 409 [2021-11-20 05:36:25,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:36:25,892 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 360 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:25,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 1397 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:25,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-20 05:36:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 379. [2021-11-20 05:36:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 337 states have (on average 1.2433234421364985) internal successors, (419), 341 states have internal predecessors, (419), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-20 05:36:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 471 transitions. [2021-11-20 05:36:25,903 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 471 transitions. Word has length 66 [2021-11-20 05:36:25,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:25,903 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 471 transitions. [2021-11-20 05:36:25,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 471 transitions. [2021-11-20 05:36:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 05:36:25,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:25,906 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] [2021-11-20 05:36:25,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-20 05:36:25,906 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:25,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1973586757, now seen corresponding path program 1 times [2021-11-20 05:36:25,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:25,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112530603] [2021-11-20 05:36:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:25,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:25,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 05:36:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:25,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:36:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:26,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:26,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112530603] [2021-11-20 05:36:26,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112530603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:26,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:26,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:36:26,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972682857] [2021-11-20 05:36:26,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:26,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:26,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:26,008 INFO L87 Difference]: Start difference. First operand 379 states and 471 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:36:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:26,601 INFO L93 Difference]: Finished difference Result 493 states and 596 transitions. [2021-11-20 05:36:26,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:26,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2021-11-20 05:36:26,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:26,604 INFO L225 Difference]: With dead ends: 493 [2021-11-20 05:36:26,604 INFO L226 Difference]: Without dead ends: 493 [2021-11-20 05:36:26,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:36:26,605 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 510 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:26,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1250 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-11-20 05:36:26,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 473. [2021-11-20 05:36:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 421 states have (on average 1.2327790973871735) internal successors, (519), 427 states have internal predecessors, (519), 28 states have call successors, (28), 21 states have call predecessors, (28), 23 states have return successors, (29), 25 states have call predecessors, (29), 24 states have call successors, (29) [2021-11-20 05:36:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 576 transitions. [2021-11-20 05:36:26,620 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 576 transitions. Word has length 68 [2021-11-20 05:36:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:26,621 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 576 transitions. [2021-11-20 05:36:26,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:36:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 576 transitions. [2021-11-20 05:36:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 05:36:26,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:26,624 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] [2021-11-20 05:36:26,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-20 05:36:26,624 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:26,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:26,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1419148950, now seen corresponding path program 1 times [2021-11-20 05:36:26,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:26,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715105640] [2021-11-20 05:36:26,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:26,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:36:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:26,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 05:36:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 05:36:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:26,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:26,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715105640] [2021-11-20 05:36:26,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715105640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:26,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:26,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 05:36:26,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846360443] [2021-11-20 05:36:26,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:26,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 05:36:26,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 05:36:26,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:36:26,750 INFO L87 Difference]: Start difference. First operand 473 states and 576 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 05:36:27,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:27,438 INFO L93 Difference]: Finished difference Result 473 states and 575 transitions. [2021-11-20 05:36:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:36:27,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 69 [2021-11-20 05:36:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:27,440 INFO L225 Difference]: With dead ends: 473 [2021-11-20 05:36:27,441 INFO L226 Difference]: Without dead ends: 423 [2021-11-20 05:36:27,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-20 05:36:27,441 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 220 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:27,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 1443 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:36:27,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2021-11-20 05:36:27,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 420. [2021-11-20 05:36:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 374 states have (on average 1.2379679144385027) internal successors, (463), 379 states have internal predecessors, (463), 25 states have call successors, (25), 19 states have call predecessors, (25), 20 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-20 05:36:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 514 transitions. [2021-11-20 05:36:27,454 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 514 transitions. Word has length 69 [2021-11-20 05:36:27,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:27,454 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 514 transitions. [2021-11-20 05:36:27,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 05:36:27,455 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 514 transitions. [2021-11-20 05:36:27,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-20 05:36:27,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:27,457 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] [2021-11-20 05:36:27,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-20 05:36:27,457 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:27,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1845717767, now seen corresponding path program 1 times [2021-11-20 05:36:27,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:27,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579821706] [2021-11-20 05:36:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:27,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:36:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:27,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-20 05:36:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:27,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579821706] [2021-11-20 05:36:27,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579821706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:27,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:27,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:36:27,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815820604] [2021-11-20 05:36:27,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:27,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:36:27,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:27,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:36:27,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:27,559 INFO L87 Difference]: Start difference. First operand 420 states and 514 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:27,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:27,879 INFO L93 Difference]: Finished difference Result 472 states and 578 transitions. [2021-11-20 05:36:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:27,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2021-11-20 05:36:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:27,881 INFO L225 Difference]: With dead ends: 472 [2021-11-20 05:36:27,882 INFO L226 Difference]: Without dead ends: 447 [2021-11-20 05:36:27,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:36:27,883 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 123 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:27,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1464 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-20 05:36:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 431. [2021-11-20 05:36:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 384 states have (on average 1.21875) internal successors, (468), 390 states have internal predecessors, (468), 26 states have call successors, (26), 19 states have call predecessors, (26), 20 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-20 05:36:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 520 transitions. [2021-11-20 05:36:27,894 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 520 transitions. Word has length 71 [2021-11-20 05:36:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:27,894 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 520 transitions. [2021-11-20 05:36:27,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 520 transitions. [2021-11-20 05:36:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 05:36:27,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:27,897 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] [2021-11-20 05:36:27,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-20 05:36:27,897 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:27,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:27,898 INFO L85 PathProgramCache]: Analyzing trace with hash 661499576, now seen corresponding path program 1 times [2021-11-20 05:36:27,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:27,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556991295] [2021-11-20 05:36:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:27,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:27,918 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:27,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:27,997 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 05:36:27,998 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-11-20 05:36:28,000 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-11-20 05:36:28,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-20 05:36:28,005 INFO L732 BasicCegarLoop]: Path program 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] [2021-11-20 05:36:28,009 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:36:28,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:36:28 BoogieIcfgContainer [2021-11-20 05:36:28,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:36:28,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:36:28,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:36:28,144 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:36:28,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:00" (3/4) ... [2021-11-20 05:36:28,149 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:36:28,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:36:28,150 INFO L158 Benchmark]: Toolchain (without parser) took 29776.73ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 108.8MB in the beginning and 123.4MB in the end (delta: -14.7MB). Peak memory consumption was 141.2MB. Max. memory is 16.1GB. [2021-11-20 05:36:28,150 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:36:28,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.98ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 101.7MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:36:28,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.73ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 95.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 05:36:28,151 INFO L158 Benchmark]: Boogie Preprocessor took 113.13ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 91.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 05:36:28,151 INFO L158 Benchmark]: RCFGBuilder took 1538.45ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 70.0MB in the end (delta: 21.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2021-11-20 05:36:28,152 INFO L158 Benchmark]: TraceAbstraction took 27142.07ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 69.9MB in the beginning and 123.4MB in the end (delta: -53.5MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2021-11-20 05:36:28,152 INFO L158 Benchmark]: Witness Printer took 5.13ms. Allocated memory is still 299.9MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:36:28,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.98ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 101.7MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.73ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 95.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.13ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 91.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1538.45ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 70.0MB in the end (delta: 21.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * TraceAbstraction took 27142.07ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 69.9MB in the beginning and 123.4MB in the end (delta: -53.5MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * Witness Printer took 5.13ms. Allocated memory is still 299.9MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp [L705] CALL _BLAST_init() [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L705] RET _BLAST_init() [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L721] CALL stub_driver_init() [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L721] RET stub_driver_init() [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L767] CALL, EXPR FloppyPnp(devobj, pirp) [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L193] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L157] return (259); VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L262-L263] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1066] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1075] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1079] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1094] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L262-L263] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265] COND FALSE !(disketteExtension__FloppyThread != 0) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1036] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-6, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L281] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L428] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] return (ntStatus); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] RET, EXPR FloppyPnp(devobj, pirp) [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L797] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L813] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=-4, tmp_ndt_4=3, UNLOADED=0] [L814] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 667]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 320 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 26.9s, OverallIterations: 54, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 19.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12376 SdHoareTripleChecker+Valid, 16.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12092 mSDsluCounter, 74423 SdHoareTripleChecker+Invalid, 13.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53937 mSDsCounter, 2128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17792 IncrementalHoareTripleChecker+Invalid, 19920 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2128 mSolverCounterUnsat, 20486 mSDtfsCounter, 17792 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 560 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 356 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=734occurred in iteration=21, InterpolantAutomatonStates: 372, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 53 MinimizatonAttempts, 1310 StatesRemovedByMinimization, 50 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2278 NumberOfCodeBlocks, 2278 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2152 ConstructedInterpolants, 0 QuantifiedInterpolants, 5066 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 05:36:28,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:36:31,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:36:31,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:36:31,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:36:31,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:36:31,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:36:31,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:36:31,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:36:31,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:36:31,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:36:31,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:36:31,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:36:31,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:36:31,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:36:31,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:36:31,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:36:31,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:36:31,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:36:31,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:36:31,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:36:31,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:36:31,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:36:31,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:36:31,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:36:31,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:36:31,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:36:31,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:36:31,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:36:31,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:36:31,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:36:31,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:36:31,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:36:31,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:36:31,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:36:31,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:36:31,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:36:31,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:36:31,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:36:31,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:36:31,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:36:31,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:36:31,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-20 05:36:31,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:36:31,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:36:31,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:36:31,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:36:31,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:36:31,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:36:31,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:36:31,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:36:31,291 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:36:31,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:36:31,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:36:31,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:36:31,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:36:31,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:36:31,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:36:31,294 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 05:36:31,295 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 05:36:31,295 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 05:36:31,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:36:31,295 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 05:36:31,296 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 05:36:31,296 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 05:36:31,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:36:31,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:36:31,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:36:31,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:36:31,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:36:31,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:36:31,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:36:31,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:36:31,299 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 05:36:31,299 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 05:36:31,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:36:31,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 05:36:31,300 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2021-11-20 05:36:31,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:36:31,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:36:31,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:36:31,884 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:36:31,884 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:36:31,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-11-20 05:36:31,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/2c5795637/629032dd5d634f8f9522f5377e652ce8/FLAG310b1d7e1 [2021-11-20 05:36:32,812 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:36:32,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-11-20 05:36:32,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/2c5795637/629032dd5d634f8f9522f5377e652ce8/FLAG310b1d7e1 [2021-11-20 05:36:33,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/data/2c5795637/629032dd5d634f8f9522f5377e652ce8 [2021-11-20 05:36:33,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:36:33,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:36:33,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:36:33,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:36:33,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:36:33,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:33,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffd683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33, skipping insertion in model container [2021-11-20 05:36:33,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:33,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:36:33,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:36:33,803 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_16ffba5f-d4b4-496a-b7db-64a9359fd043/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-11-20 05:36:33,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:33,833 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:36:33,973 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_16ffba5f-d4b4-496a-b7db-64a9359fd043/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-11-20 05:36:33,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:36:33,998 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:36:33,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33 WrapperNode [2021-11-20 05:36:33,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:36:34,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:34,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:36:34,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:36:34,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,132 INFO L137 Inliner]: procedures = 41, calls = 77, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 1193 [2021-11-20 05:36:34,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:36:34,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:36:34,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:36:34,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:36:34,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:36:34,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:36:34,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:36:34,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:36:34,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (1/1) ... [2021-11-20 05:36:34,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:36:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:34,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:36:34,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:36:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:36:34,463 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-11-20 05:36:34,463 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-11-20 05:36:34,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 05:36:34,463 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2021-11-20 05:36:34,464 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2021-11-20 05:36:34,464 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-11-20 05:36:34,464 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-11-20 05:36:34,464 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-11-20 05:36:34,464 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-11-20 05:36:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-11-20 05:36:34,465 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-11-20 05:36:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-11-20 05:36:34,465 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-11-20 05:36:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2021-11-20 05:36:34,466 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2021-11-20 05:36:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:36:34,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:36:34,864 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:36:34,866 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:36:34,875 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:34,983 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-11-20 05:36:34,984 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-11-20 05:36:34,985 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,013 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-20 05:36:35,013 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-20 05:36:35,031 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,041 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,057 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,069 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,085 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,087 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,095 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:35,974 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume !false; [2021-11-20 05:36:35,976 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2021-11-20 05:36:35,977 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2021-11-20 05:36:35,977 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume !false; [2021-11-20 05:36:35,977 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume false; [2021-11-20 05:36:35,977 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2021-11-20 05:36:35,978 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2021-11-20 05:36:35,978 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2021-11-20 05:36:35,978 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-11-20 05:36:35,979 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-11-20 05:36:35,979 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2021-11-20 05:36:35,979 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !false; [2021-11-20 05:36:35,979 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##235: assume false; [2021-11-20 05:36:35,980 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2021-11-20 05:36:35,984 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:36,043 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-20 05:36:36,043 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-20 05:36:36,052 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:36,053 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:36,055 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 05:36:36,130 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2021-11-20 05:36:36,131 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-11-20 05:36:36,131 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-11-20 05:36:36,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2021-11-20 05:36:36,133 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-11-20 05:36:36,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-11-20 05:36:36,154 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:36:36,206 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:36:36,207 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:36:36,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:36 BoogieIcfgContainer [2021-11-20 05:36:36,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:36:36,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:36:36,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:36:36,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:36:36,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:36:33" (1/3) ... [2021-11-20 05:36:36,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ca84bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:36, skipping insertion in model container [2021-11-20 05:36:36,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:33" (2/3) ... [2021-11-20 05:36:36,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ca84bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:36, skipping insertion in model container [2021-11-20 05:36:36,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:36" (3/3) ... [2021-11-20 05:36:36,222 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-11-20 05:36:36,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:36:36,229 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 05:36:36,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:36:36,316 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-20 05:36:36,316 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 05:36:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-20 05:36:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 05:36:36,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:36,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:36,390 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:36,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:36,399 INFO L85 PathProgramCache]: Analyzing trace with hash -207662659, now seen corresponding path program 1 times [2021-11-20 05:36:36,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:36,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512380355] [2021-11-20 05:36:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:36,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:36,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:36,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:36,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 05:36:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:36,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:36,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:36,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:36,806 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:36,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512380355] [2021-11-20 05:36:36,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512380355] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:36,808 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:36,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 05:36:36,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795573746] [2021-11-20 05:36:36,812 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:36,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:36:36,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:36,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:36:36,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:36:36,864 INFO L87 Difference]: Start difference. First operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:37,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:37,159 INFO L93 Difference]: Finished difference Result 319 states and 470 transitions. [2021-11-20 05:36:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:36:37,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 8 [2021-11-20 05:36:37,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:37,179 INFO L225 Difference]: With dead ends: 319 [2021-11-20 05:36:37,180 INFO L226 Difference]: Without dead ends: 317 [2021-11-20 05:36:37,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:36:37,186 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 524 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:37,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 632 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-11-20 05:36:37,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 316. [2021-11-20 05:36:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 257 states have (on average 1.5058365758754864) internal successors, (387), 282 states have internal predecessors, (387), 51 states have call successors, (51), 7 states have call predecessors, (51), 6 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-20 05:36:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 467 transitions. [2021-11-20 05:36:37,366 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 467 transitions. Word has length 8 [2021-11-20 05:36:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:37,373 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 467 transitions. [2021-11-20 05:36:37,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 467 transitions. [2021-11-20 05:36:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 05:36:37,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:37,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:37,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:37,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:37,606 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:37,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:37,607 INFO L85 PathProgramCache]: Analyzing trace with hash -922150621, now seen corresponding path program 1 times [2021-11-20 05:36:37,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:37,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023507695] [2021-11-20 05:36:37,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:37,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:37,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:37,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:37,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 05:36:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:37,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:36:37,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:37,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:38,063 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:38,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023507695] [2021-11-20 05:36:38,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023507695] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:38,064 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:38,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-11-20 05:36:38,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324351481] [2021-11-20 05:36:38,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:38,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:38,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:38,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:38,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:38,068 INFO L87 Difference]: Start difference. First operand 316 states and 467 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:38,627 INFO L93 Difference]: Finished difference Result 440 states and 643 transitions. [2021-11-20 05:36:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-20 05:36:38,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:38,634 INFO L225 Difference]: With dead ends: 440 [2021-11-20 05:36:38,634 INFO L226 Difference]: Without dead ends: 440 [2021-11-20 05:36:38,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:38,637 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 1130 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:38,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 720 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-20 05:36:38,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 418. [2021-11-20 05:36:38,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 358 states have (on average 1.4245810055865922) internal successors, (510), 363 states have internal predecessors, (510), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2021-11-20 05:36:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 611 transitions. [2021-11-20 05:36:38,679 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 611 transitions. Word has length 16 [2021-11-20 05:36:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:38,679 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 611 transitions. [2021-11-20 05:36:38,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 611 transitions. [2021-11-20 05:36:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 05:36:38,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:38,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:38,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:38,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:38,895 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:38,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1499851736, now seen corresponding path program 1 times [2021-11-20 05:36:38,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:38,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194537241] [2021-11-20 05:36:38,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:38,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:38,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:38,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 05:36:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:39,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:39,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:39,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:39,162 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:39,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194537241] [2021-11-20 05:36:39,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194537241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:39,163 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:39,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 05:36:39,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638192497] [2021-11-20 05:36:39,164 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:39,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:39,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:39,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:39,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:39,166 INFO L87 Difference]: Start difference. First operand 418 states and 611 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:39,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:39,254 INFO L93 Difference]: Finished difference Result 417 states and 610 transitions. [2021-11-20 05:36:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:39,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-11-20 05:36:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:39,260 INFO L225 Difference]: With dead ends: 417 [2021-11-20 05:36:39,260 INFO L226 Difference]: Without dead ends: 413 [2021-11-20 05:36:39,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:39,262 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 272 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:39,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 544 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:39,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-11-20 05:36:39,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-11-20 05:36:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 354 states have (on average 1.4039548022598871) internal successors, (497), 358 states have internal predecessors, (497), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2021-11-20 05:36:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 598 transitions. [2021-11-20 05:36:39,318 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 598 transitions. Word has length 14 [2021-11-20 05:36:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:39,319 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 598 transitions. [2021-11-20 05:36:39,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 598 transitions. [2021-11-20 05:36:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 05:36:39,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:39,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:39,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:39,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:39,535 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:39,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -866854925, now seen corresponding path program 1 times [2021-11-20 05:36:39,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:39,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150275020] [2021-11-20 05:36:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:39,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:39,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:39,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:39,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 05:36:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:39,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:39,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:39,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:39,862 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:39,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150275020] [2021-11-20 05:36:39,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150275020] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:39,865 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:39,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 05:36:39,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326540326] [2021-11-20 05:36:39,866 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:39,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:39,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:39,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:39,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:39,873 INFO L87 Difference]: Start difference. First operand 413 states and 598 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:39,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:39,928 INFO L93 Difference]: Finished difference Result 499 states and 706 transitions. [2021-11-20 05:36:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:39,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 05:36:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:39,934 INFO L225 Difference]: With dead ends: 499 [2021-11-20 05:36:39,935 INFO L226 Difference]: Without dead ends: 499 [2021-11-20 05:36:39,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:39,947 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 407 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:39,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 545 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:39,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-11-20 05:36:39,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 467. [2021-11-20 05:36:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 401 states have (on average 1.399002493765586) internal successors, (561), 412 states have internal predecessors, (561), 51 states have call successors, (51), 14 states have call predecessors, (51), 14 states have return successors, (59), 43 states have call predecessors, (59), 41 states have call successors, (59) [2021-11-20 05:36:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 671 transitions. [2021-11-20 05:36:39,996 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 671 transitions. Word has length 19 [2021-11-20 05:36:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:39,997 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 671 transitions. [2021-11-20 05:36:39,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 671 transitions. [2021-11-20 05:36:40,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 05:36:40,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:40,009 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] [2021-11-20 05:36:40,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:40,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:40,213 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:40,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:40,214 INFO L85 PathProgramCache]: Analyzing trace with hash 122564240, now seen corresponding path program 1 times [2021-11-20 05:36:40,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:40,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30537932] [2021-11-20 05:36:40,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:40,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:40,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:40,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:40,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 05:36:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:40,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:40,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:40,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:40,551 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:40,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30537932] [2021-11-20 05:36:40,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30537932] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:40,551 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:40,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 05:36:40,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749413019] [2021-11-20 05:36:40,552 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:40,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:40,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:40,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:40,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:40,553 INFO L87 Difference]: Start difference. First operand 467 states and 671 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:40,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:40,600 INFO L93 Difference]: Finished difference Result 646 states and 916 transitions. [2021-11-20 05:36:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:40,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-20 05:36:40,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:40,607 INFO L225 Difference]: With dead ends: 646 [2021-11-20 05:36:40,608 INFO L226 Difference]: Without dead ends: 646 [2021-11-20 05:36:40,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:40,609 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 397 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:40,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 658 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2021-11-20 05:36:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 621. [2021-11-20 05:36:40,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 538 states have (on average 1.3866171003717471) internal successors, (746), 546 states have internal predecessors, (746), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2021-11-20 05:36:40,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 887 transitions. [2021-11-20 05:36:40,648 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 887 transitions. Word has length 22 [2021-11-20 05:36:40,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:40,649 INFO L470 AbstractCegarLoop]: Abstraction has 621 states and 887 transitions. [2021-11-20 05:36:40,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:40,649 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 887 transitions. [2021-11-20 05:36:40,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 05:36:40,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:40,651 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] [2021-11-20 05:36:40,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:40,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:40,870 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:40,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:40,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1248863601, now seen corresponding path program 1 times [2021-11-20 05:36:40,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:40,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202649292] [2021-11-20 05:36:40,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:40,872 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:40,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:40,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 05:36:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:41,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:41,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:41,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:41,185 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:41,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202649292] [2021-11-20 05:36:41,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202649292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:41,185 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:41,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 05:36:41,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353259659] [2021-11-20 05:36:41,186 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:41,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:41,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:41,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:41,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:41,188 INFO L87 Difference]: Start difference. First operand 621 states and 887 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:41,292 INFO L93 Difference]: Finished difference Result 654 states and 928 transitions. [2021-11-20 05:36:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:41,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2021-11-20 05:36:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:41,300 INFO L225 Difference]: With dead ends: 654 [2021-11-20 05:36:41,300 INFO L226 Difference]: Without dead ends: 654 [2021-11-20 05:36:41,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:41,301 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 41 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:41,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 789 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:41,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2021-11-20 05:36:41,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 650. [2021-11-20 05:36:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 567 states have (on average 1.382716049382716) internal successors, (784), 573 states have internal predecessors, (784), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2021-11-20 05:36:41,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 925 transitions. [2021-11-20 05:36:41,335 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 925 transitions. Word has length 29 [2021-11-20 05:36:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:41,336 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 925 transitions. [2021-11-20 05:36:41,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 925 transitions. [2021-11-20 05:36:41,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 05:36:41,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:41,338 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] [2021-11-20 05:36:41,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:41,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:41,552 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:41,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1346397447, now seen corresponding path program 1 times [2021-11-20 05:36:41,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:41,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849511363] [2021-11-20 05:36:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:41,553 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:41,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:41,554 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:41,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 05:36:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:41,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:36:41,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:41,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:41,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:41,965 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:41,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849511363] [2021-11-20 05:36:41,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849511363] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:41,966 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:41,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-11-20 05:36:41,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218285265] [2021-11-20 05:36:41,966 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:41,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:41,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:41,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:41,968 INFO L87 Difference]: Start difference. First operand 650 states and 925 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:42,263 INFO L93 Difference]: Finished difference Result 662 states and 941 transitions. [2021-11-20 05:36:42,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:42,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 05:36:42,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:42,270 INFO L225 Difference]: With dead ends: 662 [2021-11-20 05:36:42,270 INFO L226 Difference]: Without dead ends: 662 [2021-11-20 05:36:42,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:42,271 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 433 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:42,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 717 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:36:42,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-20 05:36:42,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 661. [2021-11-20 05:36:42,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 578 states have (on average 1.3806228373702423) internal successors, (798), 583 states have internal predecessors, (798), 61 states have call successors, (61), 23 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2021-11-20 05:36:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 939 transitions. [2021-11-20 05:36:42,303 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 939 transitions. Word has length 28 [2021-11-20 05:36:42,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:42,304 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 939 transitions. [2021-11-20 05:36:42,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 939 transitions. [2021-11-20 05:36:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 05:36:42,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:42,307 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] [2021-11-20 05:36:42,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:42,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:42,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 392976058, now seen corresponding path program 1 times [2021-11-20 05:36:42,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:42,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286301875] [2021-11-20 05:36:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:42,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:42,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:42,533 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:42,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 05:36:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:42,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:36:42,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:42,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:42,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:43,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:43,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286301875] [2021-11-20 05:36:43,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286301875] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:43,095 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:43,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 05:36:43,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983454772] [2021-11-20 05:36:43,095 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:43,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:43,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:43,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:43,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:43,097 INFO L87 Difference]: Start difference. First operand 661 states and 939 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:36:43,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:43,525 INFO L93 Difference]: Finished difference Result 674 states and 950 transitions. [2021-11-20 05:36:43,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:43,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2021-11-20 05:36:43,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:43,533 INFO L225 Difference]: With dead ends: 674 [2021-11-20 05:36:43,533 INFO L226 Difference]: Without dead ends: 674 [2021-11-20 05:36:43,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:43,534 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 838 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:43,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [839 Valid, 1045 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-11-20 05:36:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 661. [2021-11-20 05:36:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 578 states have (on average 1.3771626297577855) internal successors, (796), 583 states have internal predecessors, (796), 61 states have call successors, (61), 23 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2021-11-20 05:36:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 937 transitions. [2021-11-20 05:36:43,573 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 937 transitions. Word has length 30 [2021-11-20 05:36:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:43,573 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 937 transitions. [2021-11-20 05:36:43,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:36:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 937 transitions. [2021-11-20 05:36:43,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 05:36:43,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:43,579 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] [2021-11-20 05:36:43,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:43,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:43,794 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:43,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:43,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1591455653, now seen corresponding path program 1 times [2021-11-20 05:36:43,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:43,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959111957] [2021-11-20 05:36:43,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:43,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:43,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:43,796 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:43,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 05:36:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:43,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:36:43,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:44,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:44,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:44,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:44,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959111957] [2021-11-20 05:36:44,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959111957] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:44,333 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:44,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 05:36:44,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466594653] [2021-11-20 05:36:44,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:44,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:44,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:44,336 INFO L87 Difference]: Start difference. First operand 661 states and 937 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:36:44,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:44,781 INFO L93 Difference]: Finished difference Result 667 states and 939 transitions. [2021-11-20 05:36:44,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:44,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2021-11-20 05:36:44,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:44,788 INFO L225 Difference]: With dead ends: 667 [2021-11-20 05:36:44,788 INFO L226 Difference]: Without dead ends: 667 [2021-11-20 05:36:44,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:44,790 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 839 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:44,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [849 Valid, 1040 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:36:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-11-20 05:36:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 661. [2021-11-20 05:36:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 578 states have (on average 1.3737024221453287) internal successors, (794), 583 states have internal predecessors, (794), 61 states have call successors, (61), 23 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2021-11-20 05:36:44,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 935 transitions. [2021-11-20 05:36:44,827 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 935 transitions. Word has length 31 [2021-11-20 05:36:44,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:44,827 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 935 transitions. [2021-11-20 05:36:44,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:36:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 935 transitions. [2021-11-20 05:36:44,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 05:36:44,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:44,830 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] [2021-11-20 05:36:44,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:45,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:45,044 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:45,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:45,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2035129213, now seen corresponding path program 1 times [2021-11-20 05:36:45,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:45,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29592384] [2021-11-20 05:36:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:45,045 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:45,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:45,046 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:45,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-20 05:36:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:45,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:36:45,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:45,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:45,414 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:45,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29592384] [2021-11-20 05:36:45,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29592384] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:45,414 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:45,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 05:36:45,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121491127] [2021-11-20 05:36:45,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:45,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:45,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:45,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:45,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:45,417 INFO L87 Difference]: Start difference. First operand 661 states and 935 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 05:36:45,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:45,558 INFO L93 Difference]: Finished difference Result 671 states and 944 transitions. [2021-11-20 05:36:45,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:45,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2021-11-20 05:36:45,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:45,565 INFO L225 Difference]: With dead ends: 671 [2021-11-20 05:36:45,565 INFO L226 Difference]: Without dead ends: 659 [2021-11-20 05:36:45,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:45,567 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 490 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:45,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 1844 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-11-20 05:36:45,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2021-11-20 05:36:45,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 577 states have (on average 1.3726169844020797) internal successors, (792), 582 states have internal predecessors, (792), 60 states have call successors, (60), 23 states have call predecessors, (60), 21 states have return successors, (79), 54 states have call predecessors, (79), 52 states have call successors, (79) [2021-11-20 05:36:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 931 transitions. [2021-11-20 05:36:45,599 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 931 transitions. Word has length 32 [2021-11-20 05:36:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:45,600 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 931 transitions. [2021-11-20 05:36:45,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 05:36:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 931 transitions. [2021-11-20 05:36:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 05:36:45,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:45,602 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] [2021-11-20 05:36:45,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:45,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:45,820 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:45,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:45,821 INFO L85 PathProgramCache]: Analyzing trace with hash -594269944, now seen corresponding path program 1 times [2021-11-20 05:36:45,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:45,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100886222] [2021-11-20 05:36:45,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:45,822 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:45,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:45,823 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:45,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-20 05:36:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:45,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:45,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:46,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:46,087 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:46,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100886222] [2021-11-20 05:36:46,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100886222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:46,087 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:46,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 05:36:46,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964766006] [2021-11-20 05:36:46,088 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:46,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:46,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:46,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:46,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:46,090 INFO L87 Difference]: Start difference. First operand 659 states and 931 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:46,130 INFO L93 Difference]: Finished difference Result 663 states and 927 transitions. [2021-11-20 05:36:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:46,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-20 05:36:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:46,139 INFO L225 Difference]: With dead ends: 663 [2021-11-20 05:36:46,139 INFO L226 Difference]: Without dead ends: 648 [2021-11-20 05:36:46,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:46,140 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 87 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:46,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 900 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:46,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2021-11-20 05:36:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 643. [2021-11-20 05:36:46,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 562 states have (on average 1.3647686832740213) internal successors, (767), 567 states have internal predecessors, (767), 60 states have call successors, (60), 23 states have call predecessors, (60), 20 states have return successors, (78), 53 states have call predecessors, (78), 52 states have call successors, (78) [2021-11-20 05:36:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 905 transitions. [2021-11-20 05:36:46,170 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 905 transitions. Word has length 30 [2021-11-20 05:36:46,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:46,171 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 905 transitions. [2021-11-20 05:36:46,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 905 transitions. [2021-11-20 05:36:46,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 05:36:46,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:46,173 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] [2021-11-20 05:36:46,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:46,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:46,397 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash -444205741, now seen corresponding path program 1 times [2021-11-20 05:36:46,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:46,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630707303] [2021-11-20 05:36:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:46,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:46,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:46,400 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:46,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-20 05:36:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:46,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:36:46,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:46,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:46,715 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:46,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630707303] [2021-11-20 05:36:46,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630707303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:46,716 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:46,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 05:36:46,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407002194] [2021-11-20 05:36:46,716 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:46,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:46,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:46,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:46,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:46,718 INFO L87 Difference]: Start difference. First operand 643 states and 905 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:46,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:46,816 INFO L93 Difference]: Finished difference Result 699 states and 963 transitions. [2021-11-20 05:36:46,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:46,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-20 05:36:46,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:46,823 INFO L225 Difference]: With dead ends: 699 [2021-11-20 05:36:46,823 INFO L226 Difference]: Without dead ends: 699 [2021-11-20 05:36:46,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:46,824 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 69 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:46,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 1316 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-20 05:36:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 645. [2021-11-20 05:36:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 564 states have (on average 1.3634751773049645) internal successors, (769), 569 states have internal predecessors, (769), 60 states have call successors, (60), 23 states have call predecessors, (60), 20 states have return successors, (78), 53 states have call predecessors, (78), 52 states have call successors, (78) [2021-11-20 05:36:46,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 907 transitions. [2021-11-20 05:36:46,854 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 907 transitions. Word has length 30 [2021-11-20 05:36:46,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:46,855 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 907 transitions. [2021-11-20 05:36:46,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 907 transitions. [2021-11-20 05:36:46,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 05:36:46,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:46,858 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] [2021-11-20 05:36:46,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:47,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:47,071 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:47,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:47,072 INFO L85 PathProgramCache]: Analyzing trace with hash -565183302, now seen corresponding path program 1 times [2021-11-20 05:36:47,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:47,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642217721] [2021-11-20 05:36:47,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:47,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:47,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:47,074 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:47,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-20 05:36:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:47,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:36:47,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:47,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:47,449 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:47,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642217721] [2021-11-20 05:36:47,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642217721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:47,450 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:47,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 05:36:47,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380825813] [2021-11-20 05:36:47,450 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:47,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:47,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:47,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:47,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:47,451 INFO L87 Difference]: Start difference. First operand 645 states and 907 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 05:36:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:47,599 INFO L93 Difference]: Finished difference Result 655 states and 916 transitions. [2021-11-20 05:36:47,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:47,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2021-11-20 05:36:47,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:47,605 INFO L225 Difference]: With dead ends: 655 [2021-11-20 05:36:47,606 INFO L226 Difference]: Without dead ends: 638 [2021-11-20 05:36:47,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:36:47,607 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 482 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:47,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 2222 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-11-20 05:36:47,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2021-11-20 05:36:47,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 560 states have (on average 1.3642857142857143) internal successors, (764), 565 states have internal predecessors, (764), 58 states have call successors, (58), 22 states have call predecessors, (58), 19 states have return successors, (76), 51 states have call predecessors, (76), 50 states have call successors, (76) [2021-11-20 05:36:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 898 transitions. [2021-11-20 05:36:47,639 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 898 transitions. Word has length 33 [2021-11-20 05:36:47,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:47,639 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 898 transitions. [2021-11-20 05:36:47,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 05:36:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 898 transitions. [2021-11-20 05:36:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 05:36:47,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:47,644 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] [2021-11-20 05:36:47,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:47,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:47,858 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:47,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:47,859 INFO L85 PathProgramCache]: Analyzing trace with hash -984672399, now seen corresponding path program 1 times [2021-11-20 05:36:47,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:47,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824347567] [2021-11-20 05:36:47,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:47,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:47,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:47,861 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:47,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-20 05:36:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:48,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:36:48,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:48,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:48,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:48,288 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:48,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824347567] [2021-11-20 05:36:48,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824347567] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:48,289 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:48,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 05:36:48,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434462440] [2021-11-20 05:36:48,289 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:48,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:48,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:48,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:48,290 INFO L87 Difference]: Start difference. First operand 638 states and 898 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:48,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:48,356 INFO L93 Difference]: Finished difference Result 689 states and 954 transitions. [2021-11-20 05:36:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:48,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2021-11-20 05:36:48,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:48,362 INFO L225 Difference]: With dead ends: 689 [2021-11-20 05:36:48,363 INFO L226 Difference]: Without dead ends: 689 [2021-11-20 05:36:48,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:48,364 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 37 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:48,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 2611 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:36:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2021-11-20 05:36:48,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 642. [2021-11-20 05:36:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 563 states have (on average 1.3623445825932505) internal successors, (767), 568 states have internal predecessors, (767), 58 states have call successors, (58), 22 states have call predecessors, (58), 20 states have return successors, (78), 52 states have call predecessors, (78), 50 states have call successors, (78) [2021-11-20 05:36:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 903 transitions. [2021-11-20 05:36:48,396 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 903 transitions. Word has length 34 [2021-11-20 05:36:48,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:48,396 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 903 transitions. [2021-11-20 05:36:48,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 903 transitions. [2021-11-20 05:36:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 05:36:48,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:48,398 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] [2021-11-20 05:36:48,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:48,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:48,612 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:48,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:48,613 INFO L85 PathProgramCache]: Analyzing trace with hash -703098920, now seen corresponding path program 1 times [2021-11-20 05:36:48,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:48,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207066896] [2021-11-20 05:36:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:48,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:48,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:48,615 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:48,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-20 05:36:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:48,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:36:48,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:48,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:48,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:48,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207066896] [2021-11-20 05:36:48,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207066896] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:48,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:48,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 05:36:48,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259108014] [2021-11-20 05:36:48,942 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:48,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:48,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:48,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:48,945 INFO L87 Difference]: Start difference. First operand 642 states and 903 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:49,115 INFO L93 Difference]: Finished difference Result 653 states and 913 transitions. [2021-11-20 05:36:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:49,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-11-20 05:36:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:49,121 INFO L225 Difference]: With dead ends: 653 [2021-11-20 05:36:49,121 INFO L226 Difference]: Without dead ends: 640 [2021-11-20 05:36:49,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:49,122 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 249 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:49,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 1730 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:49,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-11-20 05:36:49,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2021-11-20 05:36:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 562 states have (on average 1.3612099644128113) internal successors, (765), 567 states have internal predecessors, (765), 57 states have call successors, (57), 22 states have call predecessors, (57), 20 states have return successors, (77), 51 states have call predecessors, (77), 49 states have call successors, (77) [2021-11-20 05:36:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 899 transitions. [2021-11-20 05:36:49,152 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 899 transitions. Word has length 33 [2021-11-20 05:36:49,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:49,153 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 899 transitions. [2021-11-20 05:36:49,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:49,153 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 899 transitions. [2021-11-20 05:36:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 05:36:49,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:49,155 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] [2021-11-20 05:36:49,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:49,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:49,369 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:49,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1034428387, now seen corresponding path program 1 times [2021-11-20 05:36:49,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:49,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52606136] [2021-11-20 05:36:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:49,371 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:49,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:49,372 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:49,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-20 05:36:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:49,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:36:49,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:49,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:49,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:49,698 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:49,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52606136] [2021-11-20 05:36:49,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52606136] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:49,699 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:49,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 05:36:49,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781772226] [2021-11-20 05:36:49,700 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:49,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:49,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:49,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:49,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:49,701 INFO L87 Difference]: Start difference. First operand 640 states and 899 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:49,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:49,856 INFO L93 Difference]: Finished difference Result 651 states and 909 transitions. [2021-11-20 05:36:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:49,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-20 05:36:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:49,863 INFO L225 Difference]: With dead ends: 651 [2021-11-20 05:36:49,863 INFO L226 Difference]: Without dead ends: 638 [2021-11-20 05:36:49,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:49,865 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 256 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:49,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1179 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:49,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-11-20 05:36:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2021-11-20 05:36:49,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 561 states have (on average 1.3600713012477719) internal successors, (763), 566 states have internal predecessors, (763), 56 states have call successors, (56), 22 states have call predecessors, (56), 20 states have return successors, (76), 50 states have call predecessors, (76), 48 states have call successors, (76) [2021-11-20 05:36:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 895 transitions. [2021-11-20 05:36:49,893 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 895 transitions. Word has length 35 [2021-11-20 05:36:49,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:49,894 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 895 transitions. [2021-11-20 05:36:49,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:49,895 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 895 transitions. [2021-11-20 05:36:49,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 05:36:49,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:49,898 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] [2021-11-20 05:36:49,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:50,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:50,117 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:50,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:50,118 INFO L85 PathProgramCache]: Analyzing trace with hash 108213321, now seen corresponding path program 1 times [2021-11-20 05:36:50,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:50,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966445048] [2021-11-20 05:36:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:50,119 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:50,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:50,120 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:50,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-20 05:36:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:50,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:36:50,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:50,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:50,700 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:50,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966445048] [2021-11-20 05:36:50,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966445048] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:50,700 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:50,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 05:36:50,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018886087] [2021-11-20 05:36:50,701 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:50,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:36:50,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:50,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:36:50,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:36:50,702 INFO L87 Difference]: Start difference. First operand 638 states and 895 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:51,220 INFO L93 Difference]: Finished difference Result 802 states and 1114 transitions. [2021-11-20 05:36:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:36:51,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2021-11-20 05:36:51,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:51,227 INFO L225 Difference]: With dead ends: 802 [2021-11-20 05:36:51,227 INFO L226 Difference]: Without dead ends: 802 [2021-11-20 05:36:51,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:51,229 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 775 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:51,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [780 Valid, 872 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:36:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2021-11-20 05:36:51,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 676. [2021-11-20 05:36:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 597 states have (on average 1.3517587939698492) internal successors, (807), 603 states have internal predecessors, (807), 57 states have call successors, (57), 23 states have call predecessors, (57), 21 states have return successors, (77), 50 states have call predecessors, (77), 49 states have call successors, (77) [2021-11-20 05:36:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 941 transitions. [2021-11-20 05:36:51,261 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 941 transitions. Word has length 37 [2021-11-20 05:36:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:51,262 INFO L470 AbstractCegarLoop]: Abstraction has 676 states and 941 transitions. [2021-11-20 05:36:51,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:51,262 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 941 transitions. [2021-11-20 05:36:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 05:36:51,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:51,265 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] [2021-11-20 05:36:51,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:51,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:51,479 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:51,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:51,480 INFO L85 PathProgramCache]: Analyzing trace with hash 447341985, now seen corresponding path program 1 times [2021-11-20 05:36:51,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:51,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572165957] [2021-11-20 05:36:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:51,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:51,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:51,482 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:51,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-20 05:36:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:51,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:51,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:51,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:51,832 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:51,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572165957] [2021-11-20 05:36:51,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572165957] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:51,832 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:51,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 05:36:51,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427152056] [2021-11-20 05:36:51,833 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:51,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:51,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:51,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:51,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:51,834 INFO L87 Difference]: Start difference. First operand 676 states and 941 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:51,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:51,924 INFO L93 Difference]: Finished difference Result 684 states and 952 transitions. [2021-11-20 05:36:51,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:51,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-20 05:36:51,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:51,930 INFO L225 Difference]: With dead ends: 684 [2021-11-20 05:36:51,930 INFO L226 Difference]: Without dead ends: 684 [2021-11-20 05:36:51,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:51,932 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 5 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:51,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 772 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2021-11-20 05:36:51,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2021-11-20 05:36:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 605 states have (on average 1.3520661157024794) internal successors, (818), 611 states have internal predecessors, (818), 57 states have call successors, (57), 23 states have call predecessors, (57), 21 states have return successors, (77), 50 states have call predecessors, (77), 49 states have call successors, (77) [2021-11-20 05:36:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 952 transitions. [2021-11-20 05:36:51,958 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 952 transitions. Word has length 37 [2021-11-20 05:36:51,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:51,959 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 952 transitions. [2021-11-20 05:36:51,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:36:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 952 transitions. [2021-11-20 05:36:51,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 05:36:51,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:51,961 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] [2021-11-20 05:36:51,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:52,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:52,182 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:52,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:52,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1984798963, now seen corresponding path program 1 times [2021-11-20 05:36:52,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:52,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177918029] [2021-11-20 05:36:52,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:52,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:52,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:52,184 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:52,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-20 05:36:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:52,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:36:52,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:52,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:52,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:52,530 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:52,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177918029] [2021-11-20 05:36:52,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177918029] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:52,531 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:52,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 05:36:52,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795198751] [2021-11-20 05:36:52,531 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:52,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:36:52,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:52,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:36:52,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:36:52,532 INFO L87 Difference]: Start difference. First operand 684 states and 952 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:52,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:52,796 INFO L93 Difference]: Finished difference Result 712 states and 980 transitions. [2021-11-20 05:36:52,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:36:52,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2021-11-20 05:36:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:52,802 INFO L225 Difference]: With dead ends: 712 [2021-11-20 05:36:52,802 INFO L226 Difference]: Without dead ends: 674 [2021-11-20 05:36:52,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:36:52,803 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 288 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:52,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1956 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:52,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-11-20 05:36:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2021-11-20 05:36:52,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 595 states have (on average 1.3294117647058823) internal successors, (791), 601 states have internal predecessors, (791), 57 states have call successors, (57), 23 states have call predecessors, (57), 21 states have return successors, (77), 50 states have call predecessors, (77), 49 states have call successors, (77) [2021-11-20 05:36:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 925 transitions. [2021-11-20 05:36:52,834 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 925 transitions. Word has length 38 [2021-11-20 05:36:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:52,834 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 925 transitions. [2021-11-20 05:36:52,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 925 transitions. [2021-11-20 05:36:52,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 05:36:52,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:52,837 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] [2021-11-20 05:36:52,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:53,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:53,054 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:53,055 INFO L85 PathProgramCache]: Analyzing trace with hash -615689806, now seen corresponding path program 1 times [2021-11-20 05:36:53,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:53,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853744755] [2021-11-20 05:36:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:53,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:53,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:53,057 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:53,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-20 05:36:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:53,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:36:53,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:53,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:53,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:53,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:53,708 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:53,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853744755] [2021-11-20 05:36:53,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853744755] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:53,709 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:53,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 05:36:53,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039411768] [2021-11-20 05:36:53,709 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:53,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:36:53,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:53,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:36:53,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:53,711 INFO L87 Difference]: Start difference. First operand 674 states and 925 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:54,534 INFO L93 Difference]: Finished difference Result 706 states and 963 transitions. [2021-11-20 05:36:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:36:54,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2021-11-20 05:36:54,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:54,540 INFO L225 Difference]: With dead ends: 706 [2021-11-20 05:36:54,541 INFO L226 Difference]: Without dead ends: 706 [2021-11-20 05:36:54,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:36:54,543 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 854 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:54,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 1315 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:36:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-11-20 05:36:54,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 696. [2021-11-20 05:36:54,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 612 states have (on average 1.3218954248366013) internal successors, (809), 623 states have internal predecessors, (809), 57 states have call successors, (57), 23 states have call predecessors, (57), 26 states have return successors, (86), 50 states have call predecessors, (86), 49 states have call successors, (86) [2021-11-20 05:36:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 952 transitions. [2021-11-20 05:36:54,586 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 952 transitions. Word has length 38 [2021-11-20 05:36:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:54,587 INFO L470 AbstractCegarLoop]: Abstraction has 696 states and 952 transitions. [2021-11-20 05:36:54,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:54,589 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 952 transitions. [2021-11-20 05:36:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 05:36:54,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:54,592 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] [2021-11-20 05:36:54,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:54,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:54,806 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:54,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:54,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1374115068, now seen corresponding path program 1 times [2021-11-20 05:36:54,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:54,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353402829] [2021-11-20 05:36:54,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:54,807 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:54,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:54,809 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:54,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-20 05:36:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:54,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:36:54,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:55,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:55,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:55,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:55,219 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:55,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353402829] [2021-11-20 05:36:55,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353402829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:55,219 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:55,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 05:36:55,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491596064] [2021-11-20 05:36:55,220 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:55,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:36:55,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:55,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:36:55,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:55,222 INFO L87 Difference]: Start difference. First operand 696 states and 952 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:55,458 INFO L93 Difference]: Finished difference Result 707 states and 962 transitions. [2021-11-20 05:36:55,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:36:55,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-11-20 05:36:55,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:55,464 INFO L225 Difference]: With dead ends: 707 [2021-11-20 05:36:55,464 INFO L226 Difference]: Without dead ends: 688 [2021-11-20 05:36:55,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:36:55,466 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 262 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:55,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 2341 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:55,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-11-20 05:36:55,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2021-11-20 05:36:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 605 states have (on average 1.3206611570247935) internal successors, (799), 616 states have internal predecessors, (799), 56 states have call successors, (56), 23 states have call predecessors, (56), 26 states have return successors, (85), 49 states have call predecessors, (85), 48 states have call successors, (85) [2021-11-20 05:36:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 940 transitions. [2021-11-20 05:36:55,492 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 940 transitions. Word has length 39 [2021-11-20 05:36:55,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:55,493 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 940 transitions. [2021-11-20 05:36:55,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 940 transitions. [2021-11-20 05:36:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 05:36:55,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:55,496 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] [2021-11-20 05:36:55,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:55,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:55,710 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:55,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1087199807, now seen corresponding path program 1 times [2021-11-20 05:36:55,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:55,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680359711] [2021-11-20 05:36:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:55,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:55,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:55,713 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:55,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-20 05:36:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:55,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:36:55,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:55,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:56,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:56,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680359711] [2021-11-20 05:36:56,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680359711] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:56,114 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:56,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 05:36:56,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778195204] [2021-11-20 05:36:56,115 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:56,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:36:56,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:56,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:36:56,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:56,116 INFO L87 Difference]: Start difference. First operand 688 states and 940 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:56,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:56,206 INFO L93 Difference]: Finished difference Result 747 states and 1002 transitions. [2021-11-20 05:36:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:36:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2021-11-20 05:36:56,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:56,214 INFO L225 Difference]: With dead ends: 747 [2021-11-20 05:36:56,215 INFO L226 Difference]: Without dead ends: 747 [2021-11-20 05:36:56,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:36:56,217 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 62 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:56,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 2422 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:56,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2021-11-20 05:36:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 691. [2021-11-20 05:36:56,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 608 states have (on average 1.319078947368421) internal successors, (802), 618 states have internal predecessors, (802), 56 states have call successors, (56), 23 states have call predecessors, (56), 26 states have return successors, (85), 50 states have call predecessors, (85), 48 states have call successors, (85) [2021-11-20 05:36:56,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 943 transitions. [2021-11-20 05:36:56,243 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 943 transitions. Word has length 39 [2021-11-20 05:36:56,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:56,243 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 943 transitions. [2021-11-20 05:36:56,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:36:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 943 transitions. [2021-11-20 05:36:56,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-20 05:36:56,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:56,246 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] [2021-11-20 05:36:56,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:56,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:56,460 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:56,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:56,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1022695597, now seen corresponding path program 1 times [2021-11-20 05:36:56,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:56,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113374124] [2021-11-20 05:36:56,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:56,461 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:56,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:56,462 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:56,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-20 05:36:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:56,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:56,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:56,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:56,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:56,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113374124] [2021-11-20 05:36:56,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113374124] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:56,791 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:56,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-20 05:36:56,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266719678] [2021-11-20 05:36:56,792 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:56,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:36:56,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:56,793 INFO L87 Difference]: Start difference. First operand 691 states and 943 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:56,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:56,962 INFO L93 Difference]: Finished difference Result 539 states and 706 transitions. [2021-11-20 05:36:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:36:56,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-11-20 05:36:56,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:56,967 INFO L225 Difference]: With dead ends: 539 [2021-11-20 05:36:56,967 INFO L226 Difference]: Without dead ends: 539 [2021-11-20 05:36:56,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:56,968 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 537 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:56,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 775 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:36:56,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-11-20 05:36:56,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 504. [2021-11-20 05:36:56,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 441 states have (on average 1.290249433106576) internal successors, (569), 450 states have internal predecessors, (569), 42 states have call successors, (42), 17 states have call predecessors, (42), 20 states have return successors, (50), 37 states have call predecessors, (50), 34 states have call successors, (50) [2021-11-20 05:36:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 661 transitions. [2021-11-20 05:36:56,989 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 661 transitions. Word has length 41 [2021-11-20 05:36:56,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:56,989 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 661 transitions. [2021-11-20 05:36:56,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 661 transitions. [2021-11-20 05:36:56,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 05:36:56,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:56,992 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] [2021-11-20 05:36:57,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:57,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:57,206 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:57,207 INFO L85 PathProgramCache]: Analyzing trace with hash 402911191, now seen corresponding path program 1 times [2021-11-20 05:36:57,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:57,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641886012] [2021-11-20 05:36:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:57,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:57,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:57,209 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:57,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-20 05:36:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:57,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:36:57,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:57,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:57,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:57,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641886012] [2021-11-20 05:36:57,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641886012] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:57,567 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:57,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 05:36:57,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282081724] [2021-11-20 05:36:57,568 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:57,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:36:57,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:57,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:36:57,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:57,570 INFO L87 Difference]: Start difference. First operand 504 states and 661 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:57,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:57,678 INFO L93 Difference]: Finished difference Result 625 states and 818 transitions. [2021-11-20 05:36:57,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:36:57,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-11-20 05:36:57,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:57,684 INFO L225 Difference]: With dead ends: 625 [2021-11-20 05:36:57,684 INFO L226 Difference]: Without dead ends: 625 [2021-11-20 05:36:57,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:36:57,686 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 120 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:57,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 762 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:36:57,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-11-20 05:36:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 574. [2021-11-20 05:36:57,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 504 states have (on average 1.2797619047619047) internal successors, (645), 507 states have internal predecessors, (645), 44 states have call successors, (44), 19 states have call predecessors, (44), 25 states have return successors, (63), 48 states have call predecessors, (63), 36 states have call successors, (63) [2021-11-20 05:36:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 752 transitions. [2021-11-20 05:36:57,710 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 752 transitions. Word has length 40 [2021-11-20 05:36:57,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:57,710 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 752 transitions. [2021-11-20 05:36:57,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:36:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 752 transitions. [2021-11-20 05:36:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 05:36:57,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:57,713 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] [2021-11-20 05:36:57,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:57,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:57,927 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:57,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1016704727, now seen corresponding path program 1 times [2021-11-20 05:36:57,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:57,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293313236] [2021-11-20 05:36:57,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:57,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:57,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:57,928 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:57,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-20 05:36:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:58,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:36:58,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:58,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:58,573 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:36:58,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293313236] [2021-11-20 05:36:58,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293313236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:58,574 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:58,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 05:36:58,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365020342] [2021-11-20 05:36:58,574 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:58,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:36:58,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:36:58,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:36:58,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:36:58,575 INFO L87 Difference]: Start difference. First operand 574 states and 752 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:59,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:59,384 INFO L93 Difference]: Finished difference Result 539 states and 699 transitions. [2021-11-20 05:36:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:36:59,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2021-11-20 05:36:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:36:59,389 INFO L225 Difference]: With dead ends: 539 [2021-11-20 05:36:59,389 INFO L226 Difference]: Without dead ends: 539 [2021-11-20 05:36:59,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2021-11-20 05:36:59,390 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 523 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:36:59,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 1338 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:36:59,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-11-20 05:36:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 525. [2021-11-20 05:36:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 459 states have (on average 1.2810457516339868) internal successors, (588), 469 states have internal predecessors, (588), 43 states have call successors, (43), 18 states have call predecessors, (43), 22 states have return successors, (53), 38 states have call predecessors, (53), 35 states have call successors, (53) [2021-11-20 05:36:59,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 684 transitions. [2021-11-20 05:36:59,409 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 684 transitions. Word has length 40 [2021-11-20 05:36:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:36:59,409 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 684 transitions. [2021-11-20 05:36:59,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:36:59,410 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 684 transitions. [2021-11-20 05:36:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-20 05:36:59,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:36:59,412 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] [2021-11-20 05:36:59,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:59,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:36:59,626 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:36:59,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:59,626 INFO L85 PathProgramCache]: Analyzing trace with hash 58663888, now seen corresponding path program 1 times [2021-11-20 05:36:59,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:36:59,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416053767] [2021-11-20 05:36:59,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:59,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:36:59,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:36:59,629 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:36:59,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-20 05:36:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:59,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:36:59,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:36:59,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:00,185 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:00,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416053767] [2021-11-20 05:37:00,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416053767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:00,186 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:00,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-11-20 05:37:00,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273520205] [2021-11-20 05:37:00,186 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:00,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:37:00,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:00,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:37:00,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:37:00,188 INFO L87 Difference]: Start difference. First operand 525 states and 684 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 11 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:00,846 INFO L93 Difference]: Finished difference Result 715 states and 965 transitions. [2021-11-20 05:37:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:37:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 11 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-11-20 05:37:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:00,853 INFO L225 Difference]: With dead ends: 715 [2021-11-20 05:37:00,853 INFO L226 Difference]: Without dead ends: 703 [2021-11-20 05:37:00,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:37:00,855 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 234 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:00,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2986 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:37:00,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2021-11-20 05:37:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 543. [2021-11-20 05:37:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 476 states have (on average 1.2773109243697478) internal successors, (608), 487 states have internal predecessors, (608), 43 states have call successors, (43), 18 states have call predecessors, (43), 23 states have return successors, (60), 38 states have call predecessors, (60), 35 states have call successors, (60) [2021-11-20 05:37:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 711 transitions. [2021-11-20 05:37:00,878 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 711 transitions. Word has length 41 [2021-11-20 05:37:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:00,878 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 711 transitions. [2021-11-20 05:37:00,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 11 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 711 transitions. [2021-11-20 05:37:00,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-20 05:37:00,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:00,881 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] [2021-11-20 05:37:00,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:01,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:01,095 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:01,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1058782467, now seen corresponding path program 1 times [2021-11-20 05:37:01,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:01,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105923154] [2021-11-20 05:37:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:01,097 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:01,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:01,098 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:01,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-20 05:37:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:01,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:01,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:01,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:01,719 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:01,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105923154] [2021-11-20 05:37:01,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105923154] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:01,719 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:01,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 05:37:01,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122033478] [2021-11-20 05:37:01,720 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:01,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:01,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:01,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:01,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:01,722 INFO L87 Difference]: Start difference. First operand 543 states and 711 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:37:02,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:02,092 INFO L93 Difference]: Finished difference Result 596 states and 776 transitions. [2021-11-20 05:37:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:37:02,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2021-11-20 05:37:02,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:02,097 INFO L225 Difference]: With dead ends: 596 [2021-11-20 05:37:02,101 INFO L226 Difference]: Without dead ends: 584 [2021-11-20 05:37:02,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:37:02,102 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 739 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:02,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 933 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:37:02,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2021-11-20 05:37:02,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 529. [2021-11-20 05:37:02,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 464 states have (on average 1.2823275862068966) internal successors, (595), 474 states have internal predecessors, (595), 42 states have call successors, (42), 18 states have call predecessors, (42), 22 states have return successors, (52), 37 states have call predecessors, (52), 34 states have call successors, (52) [2021-11-20 05:37:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 689 transitions. [2021-11-20 05:37:02,142 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 689 transitions. Word has length 42 [2021-11-20 05:37:02,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:02,143 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 689 transitions. [2021-11-20 05:37:02,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:37:02,144 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 689 transitions. [2021-11-20 05:37:02,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 05:37:02,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:02,146 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] [2021-11-20 05:37:02,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:02,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:02,359 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:02,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash 109080568, now seen corresponding path program 1 times [2021-11-20 05:37:02,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:02,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322523517] [2021-11-20 05:37:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:02,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:02,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:02,363 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:02,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-20 05:37:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:02,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:02,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:02,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:02,741 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:02,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322523517] [2021-11-20 05:37:02,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322523517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:02,742 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:02,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-20 05:37:02,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822232630] [2021-11-20 05:37:02,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:02,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:37:02,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:37:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:37:02,746 INFO L87 Difference]: Start difference. First operand 529 states and 689 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:02,766 INFO L93 Difference]: Finished difference Result 483 states and 623 transitions. [2021-11-20 05:37:02,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:37:02,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-11-20 05:37:02,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:02,770 INFO L225 Difference]: With dead ends: 483 [2021-11-20 05:37:02,771 INFO L226 Difference]: Without dead ends: 483 [2021-11-20 05:37:02,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:37:02,772 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 39 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:02,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 1062 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-11-20 05:37:02,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2021-11-20 05:37:02,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 424 states have (on average 1.2641509433962264) internal successors, (536), 430 states have internal predecessors, (536), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (47), 36 states have call predecessors, (47), 33 states have call successors, (47) [2021-11-20 05:37:02,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 623 transitions. [2021-11-20 05:37:02,787 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 623 transitions. Word has length 44 [2021-11-20 05:37:02,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:02,787 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 623 transitions. [2021-11-20 05:37:02,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:02,788 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 623 transitions. [2021-11-20 05:37:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 05:37:02,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:02,790 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] [2021-11-20 05:37:02,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:03,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:03,004 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:03,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1762527581, now seen corresponding path program 1 times [2021-11-20 05:37:03,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:03,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90330727] [2021-11-20 05:37:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:03,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:03,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:03,007 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-20 05:37:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:03,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:03,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:03,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:03,699 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:03,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90330727] [2021-11-20 05:37:03,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90330727] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:03,700 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:03,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-20 05:37:03,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229540848] [2021-11-20 05:37:03,700 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:03,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:37:03,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:03,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:37:03,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:37:03,701 INFO L87 Difference]: Start difference. First operand 483 states and 623 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:37:04,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:04,110 INFO L93 Difference]: Finished difference Result 485 states and 622 transitions. [2021-11-20 05:37:04,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:04,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2021-11-20 05:37:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:04,115 INFO L225 Difference]: With dead ends: 485 [2021-11-20 05:37:04,115 INFO L226 Difference]: Without dead ends: 485 [2021-11-20 05:37:04,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:37:04,116 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 626 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:04,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 1161 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:37:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2021-11-20 05:37:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 483. [2021-11-20 05:37:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 424 states have (on average 1.259433962264151) internal successors, (534), 430 states have internal predecessors, (534), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (47), 36 states have call predecessors, (47), 33 states have call successors, (47) [2021-11-20 05:37:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 621 transitions. [2021-11-20 05:37:04,133 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 621 transitions. Word has length 46 [2021-11-20 05:37:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:04,133 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 621 transitions. [2021-11-20 05:37:04,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:37:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 621 transitions. [2021-11-20 05:37:04,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 05:37:04,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:04,140 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] [2021-11-20 05:37:04,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:04,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:04,355 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:04,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash -995885365, now seen corresponding path program 1 times [2021-11-20 05:37:04,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:04,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449534081] [2021-11-20 05:37:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:04,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:04,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:04,357 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:04,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-20 05:37:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:04,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:37:04,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:04,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:04,957 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:04,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449534081] [2021-11-20 05:37:04,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449534081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:04,957 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:04,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-11-20 05:37:04,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020579189] [2021-11-20 05:37:04,958 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:04,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:37:04,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:04,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:37:04,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:37:04,959 INFO L87 Difference]: Start difference. First operand 483 states and 621 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:05,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:05,717 INFO L93 Difference]: Finished difference Result 598 states and 779 transitions. [2021-11-20 05:37:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:37:05,718 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-11-20 05:37:05,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:05,723 INFO L225 Difference]: With dead ends: 598 [2021-11-20 05:37:05,723 INFO L226 Difference]: Without dead ends: 575 [2021-11-20 05:37:05,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:37:05,724 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 409 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 3464 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:05,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 3464 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:37:05,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-11-20 05:37:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 479. [2021-11-20 05:37:05,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 421 states have (on average 1.2589073634204275) internal successors, (530), 427 states have internal predecessors, (530), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (46), 35 states have call predecessors, (46), 32 states have call successors, (46) [2021-11-20 05:37:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 615 transitions. [2021-11-20 05:37:05,754 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 615 transitions. Word has length 46 [2021-11-20 05:37:05,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:05,755 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 615 transitions. [2021-11-20 05:37:05,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:05,755 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 615 transitions. [2021-11-20 05:37:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 05:37:05,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:05,758 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] [2021-11-20 05:37:05,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:05,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:05,971 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:05,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1515060383, now seen corresponding path program 1 times [2021-11-20 05:37:05,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:05,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949698365] [2021-11-20 05:37:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:05,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:05,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:05,973 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:05,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-20 05:37:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:06,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:37:06,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:06,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:06,449 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:06,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949698365] [2021-11-20 05:37:06,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949698365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:06,450 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:06,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-20 05:37:06,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321616026] [2021-11-20 05:37:06,450 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:06,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 05:37:06,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 05:37:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:37:06,452 INFO L87 Difference]: Start difference. First operand 479 states and 615 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:37:06,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:06,758 INFO L93 Difference]: Finished difference Result 510 states and 647 transitions. [2021-11-20 05:37:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:37:06,759 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2021-11-20 05:37:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:06,762 INFO L225 Difference]: With dead ends: 510 [2021-11-20 05:37:06,763 INFO L226 Difference]: Without dead ends: 478 [2021-11-20 05:37:06,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:37:06,764 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 233 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:06,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 2821 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:37:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-20 05:37:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 476. [2021-11-20 05:37:06,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 418 states have (on average 1.2607655502392345) internal successors, (527), 425 states have internal predecessors, (527), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (45), 34 states have call predecessors, (45), 32 states have call successors, (45) [2021-11-20 05:37:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 611 transitions. [2021-11-20 05:37:06,780 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 611 transitions. Word has length 47 [2021-11-20 05:37:06,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:06,781 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 611 transitions. [2021-11-20 05:37:06,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:37:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 611 transitions. [2021-11-20 05:37:06,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 05:37:06,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:06,783 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] [2021-11-20 05:37:06,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:06,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:06,998 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:06,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2101663171, now seen corresponding path program 1 times [2021-11-20 05:37:06,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:06,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069536589] [2021-11-20 05:37:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:06,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:06,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:07,000 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:07,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-20 05:37:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:07,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:07,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:07,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:07,345 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:07,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069536589] [2021-11-20 05:37:07,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069536589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:07,345 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:07,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 05:37:07,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23390171] [2021-11-20 05:37:07,346 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:07,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:37:07,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:07,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:37:07,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:37:07,348 INFO L87 Difference]: Start difference. First operand 476 states and 611 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:37:07,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:07,581 INFO L93 Difference]: Finished difference Result 502 states and 637 transitions. [2021-11-20 05:37:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:37:07,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2021-11-20 05:37:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:07,584 INFO L225 Difference]: With dead ends: 502 [2021-11-20 05:37:07,584 INFO L226 Difference]: Without dead ends: 483 [2021-11-20 05:37:07,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:37:07,585 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 354 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:07,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1559 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:37:07,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-11-20 05:37:07,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 471. [2021-11-20 05:37:07,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 415 states have (on average 1.2554216867469878) internal successors, (521), 421 states have internal predecessors, (521), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (43), 33 states have call predecessors, (43), 31 states have call successors, (43) [2021-11-20 05:37:07,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 602 transitions. [2021-11-20 05:37:07,600 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 602 transitions. Word has length 48 [2021-11-20 05:37:07,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:07,600 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 602 transitions. [2021-11-20 05:37:07,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:37:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 602 transitions. [2021-11-20 05:37:07,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-20 05:37:07,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:07,603 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] [2021-11-20 05:37:07,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:07,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:07,817 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:07,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:07,818 INFO L85 PathProgramCache]: Analyzing trace with hash -929983815, now seen corresponding path program 1 times [2021-11-20 05:37:07,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:07,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167227822] [2021-11-20 05:37:07,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:07,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:07,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:07,821 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:07,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-20 05:37:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:08,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:37:08,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:08,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:08,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:08,203 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:08,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167227822] [2021-11-20 05:37:08,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167227822] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:08,204 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:08,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 05:37:08,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781920620] [2021-11-20 05:37:08,204 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:08,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:37:08,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:08,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:37:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:37:08,206 INFO L87 Difference]: Start difference. First operand 471 states and 602 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:08,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:08,230 INFO L93 Difference]: Finished difference Result 501 states and 645 transitions. [2021-11-20 05:37:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:37:08,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-11-20 05:37:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:08,235 INFO L225 Difference]: With dead ends: 501 [2021-11-20 05:37:08,235 INFO L226 Difference]: Without dead ends: 501 [2021-11-20 05:37:08,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:37:08,236 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 10 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:08,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 713 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-11-20 05:37:08,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 471. [2021-11-20 05:37:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 415 states have (on average 1.2554216867469878) internal successors, (521), 421 states have internal predecessors, (521), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (43), 33 states have call predecessors, (43), 31 states have call successors, (43) [2021-11-20 05:37:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 602 transitions. [2021-11-20 05:37:08,251 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 602 transitions. Word has length 49 [2021-11-20 05:37:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:08,252 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 602 transitions. [2021-11-20 05:37:08,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 602 transitions. [2021-11-20 05:37:08,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-20 05:37:08,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:08,254 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] [2021-11-20 05:37:08,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:08,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:08,469 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash -217509127, now seen corresponding path program 1 times [2021-11-20 05:37:08,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:08,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704992080] [2021-11-20 05:37:08,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:08,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:08,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:08,471 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:08,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-20 05:37:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:08,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:08,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:08,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:08,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:08,845 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:08,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704992080] [2021-11-20 05:37:08,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704992080] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:08,846 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:08,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 05:37:08,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166732913] [2021-11-20 05:37:08,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:08,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:37:08,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:08,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:37:08,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:37:08,847 INFO L87 Difference]: Start difference. First operand 471 states and 602 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:08,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:08,891 INFO L93 Difference]: Finished difference Result 546 states and 695 transitions. [2021-11-20 05:37:08,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:37:08,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-11-20 05:37:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:08,895 INFO L225 Difference]: With dead ends: 546 [2021-11-20 05:37:08,896 INFO L226 Difference]: Without dead ends: 546 [2021-11-20 05:37:08,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:37:08,898 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 121 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:08,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:08,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-11-20 05:37:08,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 524. [2021-11-20 05:37:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 463 states have (on average 1.2570194384449245) internal successors, (582), 468 states have internal predecessors, (582), 40 states have call successors, (40), 19 states have call predecessors, (40), 20 states have return successors, (49), 37 states have call predecessors, (49), 34 states have call successors, (49) [2021-11-20 05:37:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 671 transitions. [2021-11-20 05:37:08,920 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 671 transitions. Word has length 49 [2021-11-20 05:37:08,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:08,920 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 671 transitions. [2021-11-20 05:37:08,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 671 transitions. [2021-11-20 05:37:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 05:37:08,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:08,923 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] [2021-11-20 05:37:08,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:09,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:09,137 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1102392332, now seen corresponding path program 1 times [2021-11-20 05:37:09,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:09,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285070573] [2021-11-20 05:37:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:09,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:09,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:09,139 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:09,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-20 05:37:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:09,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:37:09,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:09,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:09,464 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:09,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285070573] [2021-11-20 05:37:09,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285070573] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:09,464 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:09,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 05:37:09,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582007807] [2021-11-20 05:37:09,465 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:09,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:09,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:09,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:09,466 INFO L87 Difference]: Start difference. First operand 524 states and 671 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:09,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:09,504 INFO L93 Difference]: Finished difference Result 543 states and 694 transitions. [2021-11-20 05:37:09,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:09,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-11-20 05:37:09,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:09,509 INFO L225 Difference]: With dead ends: 543 [2021-11-20 05:37:09,510 INFO L226 Difference]: Without dead ends: 543 [2021-11-20 05:37:09,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:37:09,511 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 31 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:09,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 1724 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-11-20 05:37:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 526. [2021-11-20 05:37:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 465 states have (on average 1.2559139784946236) internal successors, (584), 470 states have internal predecessors, (584), 40 states have call successors, (40), 19 states have call predecessors, (40), 20 states have return successors, (49), 37 states have call predecessors, (49), 34 states have call successors, (49) [2021-11-20 05:37:09,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 673 transitions. [2021-11-20 05:37:09,530 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 673 transitions. Word has length 48 [2021-11-20 05:37:09,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:09,530 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 673 transitions. [2021-11-20 05:37:09,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:09,531 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 673 transitions. [2021-11-20 05:37:09,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 05:37:09,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:09,533 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] [2021-11-20 05:37:09,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:09,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:09,747 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:09,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:09,748 INFO L85 PathProgramCache]: Analyzing trace with hash -460835788, now seen corresponding path program 1 times [2021-11-20 05:37:09,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:09,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127609858] [2021-11-20 05:37:09,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:09,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:09,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:09,750 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:09,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-20 05:37:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:09,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:37:09,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:10,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:10,195 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:10,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127609858] [2021-11-20 05:37:10,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127609858] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:10,195 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:10,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-20 05:37:10,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584115976] [2021-11-20 05:37:10,195 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:10,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 05:37:10,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:10,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 05:37:10,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:37:10,197 INFO L87 Difference]: Start difference. First operand 526 states and 673 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:10,354 INFO L93 Difference]: Finished difference Result 541 states and 683 transitions. [2021-11-20 05:37:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:37:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2021-11-20 05:37:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:10,358 INFO L225 Difference]: With dead ends: 541 [2021-11-20 05:37:10,359 INFO L226 Difference]: Without dead ends: 541 [2021-11-20 05:37:10,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:37:10,360 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 80 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 3129 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:10,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 3129 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:37:10,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2021-11-20 05:37:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 514. [2021-11-20 05:37:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 454 states have (on average 1.248898678414097) internal successors, (567), 458 states have internal predecessors, (567), 39 states have call successors, (39), 19 states have call predecessors, (39), 20 states have return successors, (49), 37 states have call predecessors, (49), 34 states have call successors, (49) [2021-11-20 05:37:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 655 transitions. [2021-11-20 05:37:10,373 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 655 transitions. Word has length 48 [2021-11-20 05:37:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:10,374 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 655 transitions. [2021-11-20 05:37:10,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 12 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 655 transitions. [2021-11-20 05:37:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 05:37:10,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:10,377 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] [2021-11-20 05:37:10,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:10,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:10,590 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:10,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1942433313, now seen corresponding path program 1 times [2021-11-20 05:37:10,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:10,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810729332] [2021-11-20 05:37:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:10,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:10,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:10,592 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:10,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-20 05:37:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:10,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:37:10,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:10,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:10,922 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:10,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810729332] [2021-11-20 05:37:10,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810729332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:10,922 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:10,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-20 05:37:10,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496875621] [2021-11-20 05:37:10,923 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:10,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:10,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:10,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:10,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:10,924 INFO L87 Difference]: Start difference. First operand 514 states and 655 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:10,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:10,968 INFO L93 Difference]: Finished difference Result 543 states and 689 transitions. [2021-11-20 05:37:10,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:10,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-11-20 05:37:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:10,972 INFO L225 Difference]: With dead ends: 543 [2021-11-20 05:37:10,972 INFO L226 Difference]: Without dead ends: 543 [2021-11-20 05:37:10,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:37:10,973 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 21 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:10,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 1826 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-11-20 05:37:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 514. [2021-11-20 05:37:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 454 states have (on average 1.2444933920704846) internal successors, (565), 458 states have internal predecessors, (565), 39 states have call successors, (39), 19 states have call predecessors, (39), 20 states have return successors, (49), 37 states have call predecessors, (49), 34 states have call successors, (49) [2021-11-20 05:37:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 653 transitions. [2021-11-20 05:37:10,987 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 653 transitions. Word has length 51 [2021-11-20 05:37:10,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:10,988 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 653 transitions. [2021-11-20 05:37:10,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:10,988 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 653 transitions. [2021-11-20 05:37:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 05:37:10,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:10,990 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] [2021-11-20 05:37:11,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:11,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:11,203 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1454966093, now seen corresponding path program 1 times [2021-11-20 05:37:11,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:11,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516182767] [2021-11-20 05:37:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:11,205 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:11,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:11,206 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:11,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-20 05:37:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:11,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:37:11,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:11,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:11,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:11,559 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:11,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516182767] [2021-11-20 05:37:11,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516182767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:11,559 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:11,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-20 05:37:11,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418025148] [2021-11-20 05:37:11,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:11,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:11,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:11,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:11,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:11,561 INFO L87 Difference]: Start difference. First operand 514 states and 653 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:37:11,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:11,595 INFO L93 Difference]: Finished difference Result 511 states and 648 transitions. [2021-11-20 05:37:11,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:11,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2021-11-20 05:37:11,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:11,600 INFO L225 Difference]: With dead ends: 511 [2021-11-20 05:37:11,600 INFO L226 Difference]: Without dead ends: 508 [2021-11-20 05:37:11,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:37:11,601 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 1 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:11,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1691 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-11-20 05:37:11,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2021-11-20 05:37:11,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 449 states have (on average 1.247216035634744) internal successors, (560), 454 states have internal predecessors, (560), 38 states have call successors, (38), 19 states have call predecessors, (38), 20 states have return successors, (47), 35 states have call predecessors, (47), 33 states have call successors, (47) [2021-11-20 05:37:11,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 645 transitions. [2021-11-20 05:37:11,615 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 645 transitions. Word has length 51 [2021-11-20 05:37:11,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:11,616 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 645 transitions. [2021-11-20 05:37:11,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:37:11,616 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 645 transitions. [2021-11-20 05:37:11,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:37:11,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:11,619 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] [2021-11-20 05:37:11,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:11,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:11,833 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:11,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:11,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1872588061, now seen corresponding path program 1 times [2021-11-20 05:37:11,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:11,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162392534] [2021-11-20 05:37:11,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:11,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:11,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:11,836 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:11,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-20 05:37:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:11,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:37:11,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:12,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:12,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:12,154 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:12,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162392534] [2021-11-20 05:37:12,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162392534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:12,154 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:12,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-20 05:37:12,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816731644] [2021-11-20 05:37:12,155 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:12,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:37:12,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:12,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:37:12,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:37:12,159 INFO L87 Difference]: Start difference. First operand 508 states and 645 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:37:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:12,172 INFO L93 Difference]: Finished difference Result 503 states and 639 transitions. [2021-11-20 05:37:12,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:37:12,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2021-11-20 05:37:12,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:12,175 INFO L225 Difference]: With dead ends: 503 [2021-11-20 05:37:12,175 INFO L226 Difference]: Without dead ends: 503 [2021-11-20 05:37:12,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:37:12,176 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 27 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:12,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1372 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:12,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-11-20 05:37:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 490. [2021-11-20 05:37:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 433 states have (on average 1.251732101616628) internal successors, (542), 438 states have internal predecessors, (542), 37 states have call successors, (37), 18 states have call predecessors, (37), 19 states have return successors, (46), 34 states have call predecessors, (46), 32 states have call successors, (46) [2021-11-20 05:37:12,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 625 transitions. [2021-11-20 05:37:12,188 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 625 transitions. Word has length 52 [2021-11-20 05:37:12,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:12,188 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 625 transitions. [2021-11-20 05:37:12,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:37:12,188 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 625 transitions. [2021-11-20 05:37:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 05:37:12,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:12,191 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] [2021-11-20 05:37:12,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:12,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:12,405 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1296785642, now seen corresponding path program 1 times [2021-11-20 05:37:12,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:12,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426169689] [2021-11-20 05:37:12,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:12,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:12,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:12,407 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:12,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-20 05:37:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:12,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:37:12,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:12,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:12,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:12,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426169689] [2021-11-20 05:37:12,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426169689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:12,932 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:12,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-11-20 05:37:12,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928819308] [2021-11-20 05:37:12,933 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:12,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:37:12,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:12,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:37:12,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:37:12,934 INFO L87 Difference]: Start difference. First operand 490 states and 625 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 13 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:13,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:13,508 INFO L93 Difference]: Finished difference Result 613 states and 792 transitions. [2021-11-20 05:37:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:37:13,509 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 13 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2021-11-20 05:37:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:13,512 INFO L225 Difference]: With dead ends: 613 [2021-11-20 05:37:13,512 INFO L226 Difference]: Without dead ends: 584 [2021-11-20 05:37:13,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:37:13,513 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 639 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:13,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 2915 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:37:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2021-11-20 05:37:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 486. [2021-11-20 05:37:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 430 states have (on average 1.2511627906976743) internal successors, (538), 435 states have internal predecessors, (538), 36 states have call successors, (36), 18 states have call predecessors, (36), 19 states have return successors, (45), 33 states have call predecessors, (45), 31 states have call successors, (45) [2021-11-20 05:37:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 619 transitions. [2021-11-20 05:37:13,527 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 619 transitions. Word has length 51 [2021-11-20 05:37:13,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:13,527 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 619 transitions. [2021-11-20 05:37:13,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 13 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 619 transitions. [2021-11-20 05:37:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:37:13,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:13,530 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] [2021-11-20 05:37:13,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2021-11-20 05:37:13,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:13,744 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash 507953388, now seen corresponding path program 1 times [2021-11-20 05:37:13,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:13,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597279231] [2021-11-20 05:37:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:13,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:13,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:13,747 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:13,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-20 05:37:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:13,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:37:13,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:14,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:14,324 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:14,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597279231] [2021-11-20 05:37:14,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597279231] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:14,325 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:14,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-11-20 05:37:14,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3706499] [2021-11-20 05:37:14,325 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:14,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:37:14,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:14,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:37:14,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:37:14,327 INFO L87 Difference]: Start difference. First operand 486 states and 619 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:15,045 INFO L93 Difference]: Finished difference Result 608 states and 784 transitions. [2021-11-20 05:37:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:37:15,046 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2021-11-20 05:37:15,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:15,050 INFO L225 Difference]: With dead ends: 608 [2021-11-20 05:37:15,050 INFO L226 Difference]: Without dead ends: 578 [2021-11-20 05:37:15,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:37:15,051 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 432 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:15,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 3353 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:37:15,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-11-20 05:37:15,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 481. [2021-11-20 05:37:15,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 426 states have (on average 1.2511737089201878) internal successors, (533), 431 states have internal predecessors, (533), 35 states have call successors, (35), 18 states have call predecessors, (35), 19 states have return successors, (44), 32 states have call predecessors, (44), 30 states have call successors, (44) [2021-11-20 05:37:15,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 612 transitions. [2021-11-20 05:37:15,065 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 612 transitions. Word has length 52 [2021-11-20 05:37:15,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:15,066 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 612 transitions. [2021-11-20 05:37:15,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:15,066 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 612 transitions. [2021-11-20 05:37:15,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:37:15,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:15,068 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] [2021-11-20 05:37:15,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:15,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:15,282 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:15,283 INFO L85 PathProgramCache]: Analyzing trace with hash 750831986, now seen corresponding path program 1 times [2021-11-20 05:37:15,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:15,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170699844] [2021-11-20 05:37:15,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:15,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:15,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:15,285 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:15,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-20 05:37:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:15,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:37:15,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:15,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:15,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:15,881 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:15,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170699844] [2021-11-20 05:37:15,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170699844] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:15,881 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:15,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-11-20 05:37:15,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046704949] [2021-11-20 05:37:15,882 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:15,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:37:15,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:15,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:37:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:37:15,883 INFO L87 Difference]: Start difference. First operand 481 states and 612 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:16,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:16,484 INFO L93 Difference]: Finished difference Result 602 states and 775 transitions. [2021-11-20 05:37:16,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:37:16,485 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2021-11-20 05:37:16,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:16,488 INFO L225 Difference]: With dead ends: 602 [2021-11-20 05:37:16,489 INFO L226 Difference]: Without dead ends: 573 [2021-11-20 05:37:16,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:37:16,490 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 316 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:16,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 3526 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:37:16,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-11-20 05:37:16,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 477. [2021-11-20 05:37:16,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 423 states have (on average 1.2505910165484633) internal successors, (529), 428 states have internal predecessors, (529), 34 states have call successors, (34), 18 states have call predecessors, (34), 19 states have return successors, (43), 31 states have call predecessors, (43), 29 states have call successors, (43) [2021-11-20 05:37:16,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 606 transitions. [2021-11-20 05:37:16,502 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 606 transitions. Word has length 52 [2021-11-20 05:37:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:16,502 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 606 transitions. [2021-11-20 05:37:16,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 606 transitions. [2021-11-20 05:37:16,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 05:37:16,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:16,504 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] [2021-11-20 05:37:16,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:16,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:16,717 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:16,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash -831882757, now seen corresponding path program 1 times [2021-11-20 05:37:16,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:16,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979997786] [2021-11-20 05:37:16,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:16,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:16,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:16,720 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:16,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-20 05:37:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:16,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:37:16,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:17,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:17,257 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:17,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979997786] [2021-11-20 05:37:17,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979997786] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:17,257 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:17,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-11-20 05:37:17,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910734153] [2021-11-20 05:37:17,258 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:17,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:37:17,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:17,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:37:17,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:37:17,260 INFO L87 Difference]: Start difference. First operand 477 states and 606 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 11 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:17,741 INFO L93 Difference]: Finished difference Result 589 states and 757 transitions. [2021-11-20 05:37:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:37:17,742 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 11 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2021-11-20 05:37:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:17,746 INFO L225 Difference]: With dead ends: 589 [2021-11-20 05:37:17,746 INFO L226 Difference]: Without dead ends: 562 [2021-11-20 05:37:17,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:37:17,747 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 196 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:17,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 2777 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:37:17,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-20 05:37:17,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 468. [2021-11-20 05:37:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 415 states have (on average 1.2481927710843375) internal successors, (518), 420 states have internal predecessors, (518), 33 states have call successors, (33), 18 states have call predecessors, (33), 19 states have return successors, (42), 30 states have call predecessors, (42), 28 states have call successors, (42) [2021-11-20 05:37:17,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 593 transitions. [2021-11-20 05:37:17,761 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 593 transitions. Word has length 52 [2021-11-20 05:37:17,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:17,761 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 593 transitions. [2021-11-20 05:37:17,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 11 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:17,761 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 593 transitions. [2021-11-20 05:37:17,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-20 05:37:17,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:17,763 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] [2021-11-20 05:37:17,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:17,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:17,977 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:17,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:17,978 INFO L85 PathProgramCache]: Analyzing trace with hash 860965226, now seen corresponding path program 1 times [2021-11-20 05:37:17,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:17,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747425605] [2021-11-20 05:37:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:17,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:17,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:17,979 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:17,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-20 05:37:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:18,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:37:18,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:18,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:18,355 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:18,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747425605] [2021-11-20 05:37:18,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747425605] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:18,355 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:18,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-20 05:37:18,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137510679] [2021-11-20 05:37:18,355 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:18,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:18,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:18,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:18,356 INFO L87 Difference]: Start difference. First operand 468 states and 593 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:18,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:18,393 INFO L93 Difference]: Finished difference Result 600 states and 779 transitions. [2021-11-20 05:37:18,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:37:18,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-11-20 05:37:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:18,397 INFO L225 Difference]: With dead ends: 600 [2021-11-20 05:37:18,397 INFO L226 Difference]: Without dead ends: 600 [2021-11-20 05:37:18,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:37:18,398 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 75 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:18,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 1850 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:18,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-11-20 05:37:18,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 468. [2021-11-20 05:37:18,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 415 states have (on average 1.2457831325301205) internal successors, (517), 420 states have internal predecessors, (517), 33 states have call successors, (33), 18 states have call predecessors, (33), 19 states have return successors, (42), 30 states have call predecessors, (42), 28 states have call successors, (42) [2021-11-20 05:37:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 592 transitions. [2021-11-20 05:37:18,412 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 592 transitions. Word has length 54 [2021-11-20 05:37:18,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:18,413 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 592 transitions. [2021-11-20 05:37:18,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:37:18,413 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 592 transitions. [2021-11-20 05:37:18,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 05:37:18,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:18,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:37:18,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-11-20 05:37:18,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:18,630 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:18,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash 911699668, now seen corresponding path program 1 times [2021-11-20 05:37:18,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:18,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336064069] [2021-11-20 05:37:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:18,631 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:18,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:18,632 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:18,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-20 05:37:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:18,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:37:18,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:18,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:19,130 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336064069] [2021-11-20 05:37:19,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336064069] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:19,131 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:19,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-20 05:37:19,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310840089] [2021-11-20 05:37:19,131 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:19,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 05:37:19,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:19,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 05:37:19,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:37:19,132 INFO L87 Difference]: Start difference. First operand 468 states and 592 transitions. Second operand has 16 states, 16 states have (on average 4.5) internal successors, (72), 14 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:37:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:19,373 INFO L93 Difference]: Finished difference Result 482 states and 605 transitions. [2021-11-20 05:37:19,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:37:19,374 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 14 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2021-11-20 05:37:19,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:19,377 INFO L225 Difference]: With dead ends: 482 [2021-11-20 05:37:19,377 INFO L226 Difference]: Without dead ends: 438 [2021-11-20 05:37:19,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:37:19,378 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 243 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:19,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 2661 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:37:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2021-11-20 05:37:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 434. [2021-11-20 05:37:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 384 states have (on average 1.2395833333333333) internal successors, (476), 389 states have internal predecessors, (476), 31 states have call successors, (31), 17 states have call predecessors, (31), 18 states have return successors, (40), 28 states have call predecessors, (40), 26 states have call successors, (40) [2021-11-20 05:37:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 547 transitions. [2021-11-20 05:37:19,395 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 547 transitions. Word has length 56 [2021-11-20 05:37:19,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:19,395 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 547 transitions. [2021-11-20 05:37:19,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 14 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:37:19,396 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 547 transitions. [2021-11-20 05:37:19,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 05:37:19,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:19,399 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] [2021-11-20 05:37:19,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:19,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:19,614 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:19,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:19,614 INFO L85 PathProgramCache]: Analyzing trace with hash 65580225, now seen corresponding path program 1 times [2021-11-20 05:37:19,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:19,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541044254] [2021-11-20 05:37:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:19,615 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:19,616 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:19,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-20 05:37:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:19,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:37:19,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:20,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:20,197 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541044254] [2021-11-20 05:37:20,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541044254] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:20,197 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:20,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-11-20 05:37:20,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942394471] [2021-11-20 05:37:20,197 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:20,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:37:20,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:37:20,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:37:20,198 INFO L87 Difference]: Start difference. First operand 434 states and 547 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 13 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:20,697 INFO L93 Difference]: Finished difference Result 552 states and 705 transitions. [2021-11-20 05:37:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:37:20,698 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 13 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2021-11-20 05:37:20,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:20,701 INFO L225 Difference]: With dead ends: 552 [2021-11-20 05:37:20,701 INFO L226 Difference]: Without dead ends: 496 [2021-11-20 05:37:20,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:37:20,702 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 520 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:20,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 2337 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:37:20,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-11-20 05:37:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 412. [2021-11-20 05:37:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 365 states have (on average 1.2383561643835617) internal successors, (452), 370 states have internal predecessors, (452), 29 states have call successors, (29), 16 states have call predecessors, (29), 17 states have return successors, (38), 26 states have call predecessors, (38), 24 states have call successors, (38) [2021-11-20 05:37:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 519 transitions. [2021-11-20 05:37:20,714 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 519 transitions. Word has length 56 [2021-11-20 05:37:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:20,715 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 519 transitions. [2021-11-20 05:37:20,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 13 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 05:37:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 519 transitions. [2021-11-20 05:37:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 05:37:20,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:20,717 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] [2021-11-20 05:37:20,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-11-20 05:37:20,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:20,931 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:20,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:20,931 INFO L85 PathProgramCache]: Analyzing trace with hash -867510019, now seen corresponding path program 1 times [2021-11-20 05:37:20,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:20,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292955476] [2021-11-20 05:37:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:20,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:20,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:20,933 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:20,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-20 05:37:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:21,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:37:21,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:21,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:21,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:21,465 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:21,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292955476] [2021-11-20 05:37:21,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292955476] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:21,465 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:21,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-20 05:37:21,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871803631] [2021-11-20 05:37:21,466 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:21,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:37:21,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:21,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:37:21,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:37:21,467 INFO L87 Difference]: Start difference. First operand 412 states and 519 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 05:37:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:21,945 INFO L93 Difference]: Finished difference Result 399 states and 493 transitions. [2021-11-20 05:37:21,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:37:21,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 62 [2021-11-20 05:37:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:21,947 INFO L225 Difference]: With dead ends: 399 [2021-11-20 05:37:21,947 INFO L226 Difference]: Without dead ends: 399 [2021-11-20 05:37:21,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:37:21,949 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 345 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:21,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1226 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:37:21,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2021-11-20 05:37:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 379. [2021-11-20 05:37:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 337 states have (on average 1.2373887240356083) internal successors, (417), 341 states have internal predecessors, (417), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-20 05:37:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 469 transitions. [2021-11-20 05:37:21,958 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 469 transitions. Word has length 62 [2021-11-20 05:37:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:21,958 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 469 transitions. [2021-11-20 05:37:21,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 05:37:21,959 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 469 transitions. [2021-11-20 05:37:21,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:37:21,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:21,960 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] [2021-11-20 05:37:21,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:22,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:22,175 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:22,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:22,175 INFO L85 PathProgramCache]: Analyzing trace with hash 695777282, now seen corresponding path program 1 times [2021-11-20 05:37:22,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:22,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309312096] [2021-11-20 05:37:22,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:22,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:22,177 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:22,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-20 05:37:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:22,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:37:22,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:22,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:22,776 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:22,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309312096] [2021-11-20 05:37:22,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309312096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:22,776 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:22,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-20 05:37:22,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855062852] [2021-11-20 05:37:22,776 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:22,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 05:37:22,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:22,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 05:37:22,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:37:22,777 INFO L87 Difference]: Start difference. First operand 379 states and 469 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:37:23,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:23,080 INFO L93 Difference]: Finished difference Result 445 states and 541 transitions. [2021-11-20 05:37:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:37:23,081 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 66 [2021-11-20 05:37:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:23,084 INFO L225 Difference]: With dead ends: 445 [2021-11-20 05:37:23,084 INFO L226 Difference]: Without dead ends: 413 [2021-11-20 05:37:23,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:37:23,085 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 350 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:23,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 2109 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:37:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-11-20 05:37:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 379. [2021-11-20 05:37:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 337 states have (on average 1.2344213649851632) internal successors, (416), 341 states have internal predecessors, (416), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-20 05:37:23,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 468 transitions. [2021-11-20 05:37:23,095 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 468 transitions. Word has length 66 [2021-11-20 05:37:23,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:23,096 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 468 transitions. [2021-11-20 05:37:23,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 05:37:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 468 transitions. [2021-11-20 05:37:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-20 05:37:23,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:23,098 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] [2021-11-20 05:37:23,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:23,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:23,312 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:23,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:23,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1845717767, now seen corresponding path program 1 times [2021-11-20 05:37:23,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:23,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745922038] [2021-11-20 05:37:23,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:23,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:23,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:23,314 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:23,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-20 05:37:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:23,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:37:23,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:23,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:23,817 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:23,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745922038] [2021-11-20 05:37:23,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745922038] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:23,818 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:23,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-20 05:37:23,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096150534] [2021-11-20 05:37:23,818 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:23,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 05:37:23,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 05:37:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:37:23,819 INFO L87 Difference]: Start difference. First operand 379 states and 468 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:37:24,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:24,168 INFO L93 Difference]: Finished difference Result 476 states and 591 transitions. [2021-11-20 05:37:24,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:37:24,168 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 71 [2021-11-20 05:37:24,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:24,170 INFO L225 Difference]: With dead ends: 476 [2021-11-20 05:37:24,170 INFO L226 Difference]: Without dead ends: 410 [2021-11-20 05:37:24,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2021-11-20 05:37:24,171 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 366 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:24,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 2673 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:37:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-20 05:37:24,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 391. [2021-11-20 05:37:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 347 states have (on average 1.2219020172910662) internal successors, (424), 353 states have internal predecessors, (424), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2021-11-20 05:37:24,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 479 transitions. [2021-11-20 05:37:24,181 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 479 transitions. Word has length 71 [2021-11-20 05:37:24,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:24,182 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 479 transitions. [2021-11-20 05:37:24,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:37:24,182 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 479 transitions. [2021-11-20 05:37:24,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 05:37:24,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:24,184 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] [2021-11-20 05:37:24,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (50)] Ended with exit code 0 [2021-11-20 05:37:24,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:24,394 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:24,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:24,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1182982275, now seen corresponding path program 1 times [2021-11-20 05:37:24,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:24,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882335483] [2021-11-20 05:37:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:24,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:24,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:24,397 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:24,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-20 05:37:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:24,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:24,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:24,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:25,010 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:25,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882335483] [2021-11-20 05:37:25,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882335483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:25,010 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:25,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-20 05:37:25,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630690169] [2021-11-20 05:37:25,011 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:25,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:37:25,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:25,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:37:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:37:25,012 INFO L87 Difference]: Start difference. First operand 391 states and 479 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-20 05:37:25,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:25,377 INFO L93 Difference]: Finished difference Result 566 states and 674 transitions. [2021-11-20 05:37:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:37:25,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 72 [2021-11-20 05:37:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:25,380 INFO L225 Difference]: With dead ends: 566 [2021-11-20 05:37:25,380 INFO L226 Difference]: Without dead ends: 566 [2021-11-20 05:37:25,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:37:25,381 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 403 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:25,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 907 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:37:25,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2021-11-20 05:37:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 486. [2021-11-20 05:37:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 432 states have (on average 1.2106481481481481) internal successors, (523), 441 states have internal predecessors, (523), 30 states have call successors, (30), 21 states have call predecessors, (30), 23 states have return successors, (30), 24 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-20 05:37:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 583 transitions. [2021-11-20 05:37:25,394 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 583 transitions. Word has length 72 [2021-11-20 05:37:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:25,395 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 583 transitions. [2021-11-20 05:37:25,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-20 05:37:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 583 transitions. [2021-11-20 05:37:25,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 05:37:25,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:25,397 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] [2021-11-20 05:37:25,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2021-11-20 05:37:25,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:25,611 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-20 05:37:25,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash 661499576, now seen corresponding path program 1 times [2021-11-20 05:37:25,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:25,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947272860] [2021-11-20 05:37:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:25,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:25,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:25,614 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:25,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-20 05:37:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:37:25,767 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:37:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:37:25,995 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-20 05:37:25,995 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 05:37:25,996 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-11-20 05:37:25,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-11-20 05:37:26,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-20 05:37:26,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:26,217 INFO L732 BasicCegarLoop]: Path program 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] [2021-11-20 05:37:26,221 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:37:26,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:37:26 BoogieIcfgContainer [2021-11-20 05:37:26,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:37:26,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:37:26,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:37:26,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:37:26,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:36" (3/4) ... [2021-11-20 05:37:26,442 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:37:26,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:37:26,443 INFO L158 Benchmark]: Toolchain (without parser) took 53352.22ms. Allocated memory was 67.1MB in the beginning and 186.6MB in the end (delta: 119.5MB). Free memory was 44.7MB in the beginning and 93.2MB in the end (delta: -48.6MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2021-11-20 05:37:26,443 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 67.1MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:37:26,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 905.48ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 35.7MB in the end (delta: 8.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 05:37:26,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 132.59ms. Allocated memory is still 67.1MB. Free memory was 35.7MB in the beginning and 29.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 05:37:26,445 INFO L158 Benchmark]: Boogie Preprocessor took 183.12ms. Allocated memory is still 67.1MB. Free memory was 29.9MB in the beginning and 45.6MB in the end (delta: -15.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-20 05:37:26,446 INFO L158 Benchmark]: RCFGBuilder took 1881.40ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 45.6MB in the beginning and 68.7MB in the end (delta: -23.1MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2021-11-20 05:37:26,446 INFO L158 Benchmark]: TraceAbstraction took 50223.24ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 68.1MB in the beginning and 93.2MB in the end (delta: -25.1MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2021-11-20 05:37:26,446 INFO L158 Benchmark]: Witness Printer took 4.97ms. Allocated memory is still 186.6MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:37:26,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 67.1MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 905.48ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 35.7MB in the end (delta: 8.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 132.59ms. Allocated memory is still 67.1MB. Free memory was 35.7MB in the beginning and 29.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 183.12ms. Allocated memory is still 67.1MB. Free memory was 29.9MB in the beginning and 45.6MB in the end (delta: -15.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1881.40ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 45.6MB in the beginning and 68.7MB in the end (delta: -23.1MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * TraceAbstraction took 50223.24ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 68.1MB in the beginning and 93.2MB in the end (delta: -25.1MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 4.97ms. Allocated memory is still 186.6MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp [L705] CALL _BLAST_init() [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L705] RET _BLAST_init() [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L721] CALL stub_driver_init() [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L721] RET stub_driver_init() [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L767] CALL, EXPR FloppyPnp(devobj, pirp) [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L193] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L157] return (259); VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L262-L263] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1066] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1075] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1079] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1094] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L262-L263] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265] COND FALSE !(disketteExtension__FloppyThread != 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1036] return (returnVal2); VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L281] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L428] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] return (ntStatus); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] RET, EXPR FloppyPnp(devobj, pirp) [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L797] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L813] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L814] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 667]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 320 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 49.9s, OverallIterations: 51, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17181 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16787 mSDsluCounter, 82525 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63164 mSDsCounter, 1587 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8110 IncrementalHoareTripleChecker+Invalid, 9697 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1587 mSolverCounterUnsat, 19361 mSDtfsCounter, 8110 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4204 GetRequests, 3770 SyntacticMatches, 0 SemanticMatches, 434 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=696occurred in iteration=20, InterpolantAutomatonStates: 377, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 50 MinimizatonAttempts, 1725 StatesRemovedByMinimization, 40 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 2152 NumberOfCodeBlocks, 2152 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 4058 ConstructedInterpolants, 0 QuantifiedInterpolants, 9181 SizeOfPredicates, 83 NumberOfNonLiveVariables, 7756 ConjunctsInSsa, 240 ConjunctsInUnsatCore, 100 InterpolantComputations, 100 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 05:37:26,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ffba5f-d4b4-496a-b7db-64a9359fd043/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample