./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD --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 bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD --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 bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:56:10,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:56:10,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:56:10,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:56:10,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:56:10,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:56:10,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:56:10,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:56:10,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:56:10,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:56:10,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:56:10,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:56:10,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:56:10,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:56:10,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:56:10,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:56:10,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:56:10,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:56:10,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:56:10,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:56:10,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:56:10,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:56:10,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:56:10,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:56:11,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:56:11,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:56:11,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:56:11,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:56:11,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:56:11,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:56:11,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:56:11,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:56:11,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:56:11,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:56:11,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:56:11,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:56:11,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:56:11,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:56:11,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:56:11,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:56:11,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:56:11,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:56:11,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:56:11,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:56:11,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:56:11,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:56:11,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:56:11,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:56:11,038 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:56:11,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:56:11,039 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:56:11,039 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:56:11,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:56:11,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:56:11,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:56:11,040 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:56:11,040 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:56:11,040 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:56:11,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:56:11,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:56:11,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:56:11,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:56:11,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:56:11,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:56:11,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:56:11,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:56:11,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:56:11,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:56:11,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:56:11,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:56:11,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:56:11,043 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_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-10-28 23:56:11,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:56:11,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:56:11,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:56:11,344 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:56:11,346 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:56:11,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 23:56:11,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/4b1c2d53d/942318f5e28844a3821b2ea97ac8ead4/FLAG4d014ad6c [2021-10-28 23:56:12,001 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:56:12,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 23:56:12,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/4b1c2d53d/942318f5e28844a3821b2ea97ac8ead4/FLAG4d014ad6c [2021-10-28 23:56:12,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/4b1c2d53d/942318f5e28844a3821b2ea97ac8ead4 [2021-10-28 23:56:12,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:56:12,246 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:56:12,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:56:12,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:56:12,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:56:12,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:12,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394ddf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12, skipping insertion in model container [2021-10-28 23:56:12,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:12,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:56:12,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:56:12,581 WARN L228 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_b3568f47-9d9b-4255-9f42-5183a62c1860/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 23:56:12,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:56:12,758 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:56:12,774 WARN L228 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_b3568f47-9d9b-4255-9f42-5183a62c1860/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 23:56:12,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:56:12,941 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:56:12,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12 WrapperNode [2021-10-28 23:56:12,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:56:12,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:56:12,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:56:12,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:56:12,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:12,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:12,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:12,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:13,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:13,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:13,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:13,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:56:13,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:56:13,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:56:13,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:56:13,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (1/1) ... [2021-10-28 23:56:13,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:56:13,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:56:13,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:56:13,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:56:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:56:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:56:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:56:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-10-28 23:56:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-10-28 23:56:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-10-28 23:56:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-10-28 23:56:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2021-10-28 23:56:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2021-10-28 23:56:13,224 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2021-10-28 23:56:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-10-28 23:56:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-10-28 23:56:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2021-10-28 23:56:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-10-28 23:56:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2021-10-28 23:56:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2021-10-28 23:56:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2021-10-28 23:56:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-10-28 23:56:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2021-10-28 23:56:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-10-28 23:56:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2021-10-28 23:56:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2021-10-28 23:56:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-10-28 23:56:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:56:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-10-28 23:56:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-10-28 23:56:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-10-28 23:56:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-10-28 23:56:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-10-28 23:56:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-10-28 23:56:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-10-28 23:56:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:56:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:56:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:56:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:56:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-10-28 23:56:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:56:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-10-28 23:56:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-10-28 23:56:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-10-28 23:56:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2021-10-28 23:56:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2021-10-28 23:56:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2021-10-28 23:56:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-10-28 23:56:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-10-28 23:56:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2021-10-28 23:56:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-10-28 23:56:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2021-10-28 23:56:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2021-10-28 23:56:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-10-28 23:56:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2021-10-28 23:56:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-10-28 23:56:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2021-10-28 23:56:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-10-28 23:56:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-10-28 23:56:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-10-28 23:56:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-10-28 23:56:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-10-28 23:56:13,233 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-10-28 23:56:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-10-28 23:56:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-10-28 23:56:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2021-10-28 23:56:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2021-10-28 23:56:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-10-28 23:56:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:56:13,235 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-10-28 23:56:13,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:56:13,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:56:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:56:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:56:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:56:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:56:13,749 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:13,825 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-10-28 23:56:13,825 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-10-28 23:56:13,830 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:13,867 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-10-28 23:56:13,867 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-10-28 23:56:13,908 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:13,929 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-10-28 23:56:13,930 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-10-28 23:56:14,016 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:14,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-10-28 23:56:14,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0; [2021-10-28 23:56:14,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-10-28 23:56:14,080 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:14,269 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2021-10-28 23:56:14,270 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2021-10-28 23:56:14,271 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:14,300 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-10-28 23:56:14,300 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-10-28 23:56:14,346 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:14,372 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-10-28 23:56:14,373 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-10-28 23:56:14,382 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:14,594 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-10-28 23:56:14,594 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-10-28 23:56:14,605 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:56:14,611 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 23:56:14,611 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 23:56:14,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:56:14,665 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:56:14,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:56:14 BoogieIcfgContainer [2021-10-28 23:56:14,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:56:14,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:56:14,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:56:14,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:56:14,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:56:12" (1/3) ... [2021-10-28 23:56:14,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4b5f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:56:14, skipping insertion in model container [2021-10-28 23:56:14,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:56:12" (2/3) ... [2021-10-28 23:56:14,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4b5f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:56:14, skipping insertion in model container [2021-10-28 23:56:14,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:56:14" (3/3) ... [2021-10-28 23:56:14,679 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-10-28 23:56:14,684 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:56:14,684 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 23:56:14,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:56:14,758 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 [2021-10-28 23:56:14,758 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:56:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) [2021-10-28 23:56:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:56:14,808 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:14,809 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:56:14,810 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:14,816 INFO L85 PathProgramCache]: Analyzing trace with hash 633313405, now seen corresponding path program 1 times [2021-10-28 23:56:14,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:14,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142183958] [2021-10-28 23:56:14,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:14,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:15,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:15,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:15,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142183958] [2021-10-28 23:56:15,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142183958] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:15,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:15,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:56:15,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176155023] [2021-10-28 23:56:15,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:56:15,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:15,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:56:15,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:56:15,294 INFO L87 Difference]: Start difference. First operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 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) [2021-10-28 23:56:17,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:17,408 INFO L93 Difference]: Finished difference Result 671 states and 1030 transitions. [2021-10-28 23:56:17,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:56:17,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 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 15 [2021-10-28 23:56:17,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:17,435 INFO L225 Difference]: With dead ends: 671 [2021-10-28 23:56:17,436 INFO L226 Difference]: Without dead ends: 665 [2021-10-28 23:56:17,438 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:56:17,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-10-28 23:56:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2021-10-28 23:56:17,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4603174603174602) internal successors, (552), 397 states have internal predecessors, (552), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 23:56:17,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 741 transitions. [2021-10-28 23:56:17,553 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 741 transitions. Word has length 15 [2021-10-28 23:56:17,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:17,553 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 741 transitions. [2021-10-28 23:56:17,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 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) [2021-10-28 23:56:17,554 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 741 transitions. [2021-10-28 23:56:17,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:56:17,555 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:17,555 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:56:17,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:56:17,556 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:17,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:17,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1738610777, now seen corresponding path program 1 times [2021-10-28 23:56:17,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:17,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751507350] [2021-10-28 23:56:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:17,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:17,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:17,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:17,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751507350] [2021-10-28 23:56:17,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751507350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:17,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:17,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:56:17,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132796542] [2021-10-28 23:56:17,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:56:17,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:17,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:56:17,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:56:17,754 INFO L87 Difference]: Start difference. First operand 509 states and 741 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:56:20,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:20,058 INFO L93 Difference]: Finished difference Result 670 states and 1022 transitions. [2021-10-28 23:56:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:56:20,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2021-10-28 23:56:20,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:20,066 INFO L225 Difference]: With dead ends: 670 [2021-10-28 23:56:20,066 INFO L226 Difference]: Without dead ends: 665 [2021-10-28 23:56:20,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:20,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-10-28 23:56:20,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2021-10-28 23:56:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4576719576719577) internal successors, (551), 397 states have internal predecessors, (551), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 23:56:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2021-10-28 23:56:20,107 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2021-10-28 23:56:20,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:20,107 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2021-10-28 23:56:20,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:56:20,108 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2021-10-28 23:56:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:56:20,109 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:20,109 INFO L513 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] [2021-10-28 23:56:20,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:56:20,110 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:20,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1016281706, now seen corresponding path program 1 times [2021-10-28 23:56:20,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:20,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17060277] [2021-10-28 23:56:20,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:20,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:20,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:20,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:20,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17060277] [2021-10-28 23:56:20,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17060277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:20,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:20,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:56:20,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063150719] [2021-10-28 23:56:20,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:56:20,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:56:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:20,300 INFO L87 Difference]: Start difference. First operand 509 states and 740 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:22,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:22,351 INFO L93 Difference]: Finished difference Result 847 states and 1261 transitions. [2021-10-28 23:56:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:56:22,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-28 23:56:22,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:22,365 INFO L225 Difference]: With dead ends: 847 [2021-10-28 23:56:22,365 INFO L226 Difference]: Without dead ends: 846 [2021-10-28 23:56:22,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:56:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-10-28 23:56:22,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 664. [2021-10-28 23:56:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 502 states have (on average 1.408366533864542) internal successors, (707), 510 states have internal predecessors, (707), 112 states have call successors, (112), 40 states have call predecessors, (112), 49 states have return successors, (145), 119 states have call predecessors, (145), 99 states have call successors, (145) [2021-10-28 23:56:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 964 transitions. [2021-10-28 23:56:22,411 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 964 transitions. Word has length 25 [2021-10-28 23:56:22,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:22,411 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 964 transitions. [2021-10-28 23:56:22,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:22,412 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 964 transitions. [2021-10-28 23:56:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:56:22,414 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:22,414 INFO L513 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] [2021-10-28 23:56:22,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:56:22,414 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1367852756, now seen corresponding path program 1 times [2021-10-28 23:56:22,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:22,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840211996] [2021-10-28 23:56:22,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:22,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:22,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:22,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:22,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:22,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840211996] [2021-10-28 23:56:22,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840211996] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:22,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:22,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:56:22,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568441160] [2021-10-28 23:56:22,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:56:22,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:22,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:56:22,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:22,670 INFO L87 Difference]: Start difference. First operand 664 states and 964 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:25,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:25,150 INFO L93 Difference]: Finished difference Result 970 states and 1415 transitions. [2021-10-28 23:56:25,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:56:25,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2021-10-28 23:56:25,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:25,158 INFO L225 Difference]: With dead ends: 970 [2021-10-28 23:56:25,158 INFO L226 Difference]: Without dead ends: 970 [2021-10-28 23:56:25,158 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:56:25,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2021-10-28 23:56:25,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 789. [2021-10-28 23:56:25,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 611 states have (on average 1.4042553191489362) internal successors, (858), 615 states have internal predecessors, (858), 114 states have call successors, (114), 46 states have call predecessors, (114), 63 states have return successors, (163), 130 states have call predecessors, (163), 104 states have call successors, (163) [2021-10-28 23:56:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1135 transitions. [2021-10-28 23:56:25,201 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1135 transitions. Word has length 30 [2021-10-28 23:56:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:25,202 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1135 transitions. [2021-10-28 23:56:25,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1135 transitions. [2021-10-28 23:56:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:56:25,205 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:25,205 INFO L513 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] [2021-10-28 23:56:25,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:56:25,205 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1062919399, now seen corresponding path program 1 times [2021-10-28 23:56:25,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:25,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67163995] [2021-10-28 23:56:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:25,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:25,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:25,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67163995] [2021-10-28 23:56:25,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67163995] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:25,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:25,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:56:25,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654201635] [2021-10-28 23:56:25,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:56:25,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:56:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:25,382 INFO L87 Difference]: Start difference. First operand 789 states and 1135 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:28,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:28,271 INFO L93 Difference]: Finished difference Result 1344 states and 2031 transitions. [2021-10-28 23:56:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:56:28,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-10-28 23:56:28,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:28,280 INFO L225 Difference]: With dead ends: 1344 [2021-10-28 23:56:28,280 INFO L226 Difference]: Without dead ends: 1344 [2021-10-28 23:56:28,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:56:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2021-10-28 23:56:28,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 907. [2021-10-28 23:56:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 708 states have (on average 1.4138418079096045) internal successors, (1001), 711 states have internal predecessors, (1001), 127 states have call successors, (127), 54 states have call predecessors, (127), 71 states have return successors, (220), 144 states have call predecessors, (220), 117 states have call successors, (220) [2021-10-28 23:56:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1348 transitions. [2021-10-28 23:56:28,327 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1348 transitions. Word has length 31 [2021-10-28 23:56:28,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:28,328 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1348 transitions. [2021-10-28 23:56:28,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:28,328 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1348 transitions. [2021-10-28 23:56:28,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:56:28,330 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:28,330 INFO L513 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] [2021-10-28 23:56:28,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:56:28,331 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:28,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:28,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1170843407, now seen corresponding path program 1 times [2021-10-28 23:56:28,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:28,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997182407] [2021-10-28 23:56:28,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:28,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:28,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:28,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997182407] [2021-10-28 23:56:28,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997182407] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:28,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:28,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:56:28,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18049826] [2021-10-28 23:56:28,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:56:28,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:28,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:56:28,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:56:28,623 INFO L87 Difference]: Start difference. First operand 907 states and 1348 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:56:31,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:31,375 INFO L93 Difference]: Finished difference Result 1046 states and 1583 transitions. [2021-10-28 23:56:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:56:31,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2021-10-28 23:56:31,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:31,383 INFO L225 Difference]: With dead ends: 1046 [2021-10-28 23:56:31,383 INFO L226 Difference]: Without dead ends: 1046 [2021-10-28 23:56:31,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:56:31,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-10-28 23:56:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 835. [2021-10-28 23:56:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 649 states have (on average 1.399075500770416) internal successors, (908), 653 states have internal predecessors, (908), 118 states have call successors, (118), 50 states have call predecessors, (118), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2021-10-28 23:56:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1203 transitions. [2021-10-28 23:56:31,420 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1203 transitions. Word has length 32 [2021-10-28 23:56:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:31,421 INFO L470 AbstractCegarLoop]: Abstraction has 835 states and 1203 transitions. [2021-10-28 23:56:31,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:56:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1203 transitions. [2021-10-28 23:56:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:56:31,423 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:31,423 INFO L513 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] [2021-10-28 23:56:31,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:56:31,424 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1821153895, now seen corresponding path program 1 times [2021-10-28 23:56:31,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:31,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733386147] [2021-10-28 23:56:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:31,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:31,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:31,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733386147] [2021-10-28 23:56:31,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733386147] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:31,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:31,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:56:31,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481915713] [2021-10-28 23:56:31,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:56:31,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:56:31,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:31,623 INFO L87 Difference]: Start difference. First operand 835 states and 1203 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:34,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:34,080 INFO L93 Difference]: Finished difference Result 961 states and 1420 transitions. [2021-10-28 23:56:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:56:34,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-10-28 23:56:34,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:34,087 INFO L225 Difference]: With dead ends: 961 [2021-10-28 23:56:34,087 INFO L226 Difference]: Without dead ends: 961 [2021-10-28 23:56:34,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:56:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2021-10-28 23:56:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 834. [2021-10-28 23:56:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 649 states have (on average 1.3959938366718028) internal successors, (906), 652 states have internal predecessors, (906), 117 states have call successors, (117), 50 states have call predecessors, (117), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2021-10-28 23:56:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1200 transitions. [2021-10-28 23:56:34,122 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1200 transitions. Word has length 36 [2021-10-28 23:56:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:34,123 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1200 transitions. [2021-10-28 23:56:34,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:34,127 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1200 transitions. [2021-10-28 23:56:34,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-28 23:56:34,132 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:34,132 INFO L513 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] [2021-10-28 23:56:34,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:56:34,132 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash -591738262, now seen corresponding path program 1 times [2021-10-28 23:56:34,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:34,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744783997] [2021-10-28 23:56:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:34,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:34,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:34,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:34,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744783997] [2021-10-28 23:56:34,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744783997] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:34,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:34,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:56:34,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101802439] [2021-10-28 23:56:34,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:56:34,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:34,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:56:34,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:56:34,343 INFO L87 Difference]: Start difference. First operand 834 states and 1200 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:37,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:37,524 INFO L93 Difference]: Finished difference Result 999 states and 1436 transitions. [2021-10-28 23:56:37,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:56:37,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-10-28 23:56:37,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:37,531 INFO L225 Difference]: With dead ends: 999 [2021-10-28 23:56:37,531 INFO L226 Difference]: Without dead ends: 999 [2021-10-28 23:56:37,532 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:56:37,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-10-28 23:56:37,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 736. [2021-10-28 23:56:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 571 states have (on average 1.3870402802101576) internal successors, (792), 575 states have internal predecessors, (792), 106 states have call successors, (106), 45 states have call predecessors, (106), 58 states have return successors, (131), 118 states have call predecessors, (131), 97 states have call successors, (131) [2021-10-28 23:56:37,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1029 transitions. [2021-10-28 23:56:37,560 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1029 transitions. Word has length 39 [2021-10-28 23:56:37,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:37,561 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1029 transitions. [2021-10-28 23:56:37,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:37,561 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1029 transitions. [2021-10-28 23:56:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:56:37,564 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:37,565 INFO L513 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] [2021-10-28 23:56:37,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:56:37,574 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:37,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1528077449, now seen corresponding path program 1 times [2021-10-28 23:56:37,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:37,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219898726] [2021-10-28 23:56:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:37,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:37,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:37,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219898726] [2021-10-28 23:56:37,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219898726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:37,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:37,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:56:37,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511632850] [2021-10-28 23:56:37,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:56:37,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:37,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:56:37,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:37,808 INFO L87 Difference]: Start difference. First operand 736 states and 1029 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:39,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:39,313 INFO L93 Difference]: Finished difference Result 959 states and 1380 transitions. [2021-10-28 23:56:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:56:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-10-28 23:56:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:39,321 INFO L225 Difference]: With dead ends: 959 [2021-10-28 23:56:39,321 INFO L226 Difference]: Without dead ends: 959 [2021-10-28 23:56:39,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:56:39,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-10-28 23:56:39,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 762. [2021-10-28 23:56:39,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3983193277310924) internal successors, (832), 608 states have internal predecessors, (832), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2021-10-28 23:56:39,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1064 transitions. [2021-10-28 23:56:39,360 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1064 transitions. Word has length 40 [2021-10-28 23:56:39,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:39,361 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1064 transitions. [2021-10-28 23:56:39,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:56:39,361 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1064 transitions. [2021-10-28 23:56:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 23:56:39,364 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:39,364 INFO L513 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] [2021-10-28 23:56:39,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:56:39,365 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:39,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash -621720949, now seen corresponding path program 1 times [2021-10-28 23:56:39,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:39,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547520768] [2021-10-28 23:56:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:39,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:39,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-10-28 23:56:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:39,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:39,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547520768] [2021-10-28 23:56:39,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547520768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:39,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:39,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:56:39,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332485367] [2021-10-28 23:56:39,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:56:39,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:39,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:56:39,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:56:39,540 INFO L87 Difference]: Start difference. First operand 762 states and 1064 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:56:41,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:41,662 INFO L93 Difference]: Finished difference Result 942 states and 1357 transitions. [2021-10-28 23:56:41,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:56:41,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2021-10-28 23:56:41,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:41,670 INFO L225 Difference]: With dead ends: 942 [2021-10-28 23:56:41,670 INFO L226 Difference]: Without dead ends: 942 [2021-10-28 23:56:41,670 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:56:41,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2021-10-28 23:56:41,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 762. [2021-10-28 23:56:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3966386554621848) internal successors, (831), 608 states have internal predecessors, (831), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2021-10-28 23:56:41,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1063 transitions. [2021-10-28 23:56:41,697 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1063 transitions. Word has length 46 [2021-10-28 23:56:41,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:41,697 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1063 transitions. [2021-10-28 23:56:41,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:56:41,697 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1063 transitions. [2021-10-28 23:56:41,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-28 23:56:41,700 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:41,700 INFO L513 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] [2021-10-28 23:56:41,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:56:41,701 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:41,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1459738846, now seen corresponding path program 1 times [2021-10-28 23:56:41,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:41,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864256890] [2021-10-28 23:56:41,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:41,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:41,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-10-28 23:56:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:41,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:41,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864256890] [2021-10-28 23:56:41,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864256890] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:41,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:41,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:56:41,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993503265] [2021-10-28 23:56:41,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:56:41,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:41,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:56:41,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:56:41,876 INFO L87 Difference]: Start difference. First operand 762 states and 1063 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:56:43,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:43,148 INFO L93 Difference]: Finished difference Result 897 states and 1299 transitions. [2021-10-28 23:56:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:56:43,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-10-28 23:56:43,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:43,155 INFO L225 Difference]: With dead ends: 897 [2021-10-28 23:56:43,155 INFO L226 Difference]: Without dead ends: 897 [2021-10-28 23:56:43,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:56:43,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2021-10-28 23:56:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 751. [2021-10-28 23:56:43,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 588 states have (on average 1.3979591836734695) internal successors, (822), 601 states have internal predecessors, (822), 106 states have call successors, (106), 46 states have call predecessors, (106), 56 states have return successors, (122), 108 states have call predecessors, (122), 98 states have call successors, (122) [2021-10-28 23:56:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1050 transitions. [2021-10-28 23:56:43,184 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1050 transitions. Word has length 47 [2021-10-28 23:56:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:43,184 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1050 transitions. [2021-10-28 23:56:43,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:56:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1050 transitions. [2021-10-28 23:56:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 23:56:43,187 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:43,188 INFO L513 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] [2021-10-28 23:56:43,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 23:56:43,188 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1711019189, now seen corresponding path program 1 times [2021-10-28 23:56:43,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:43,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240401103] [2021-10-28 23:56:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:43,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:43,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:56:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:56:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:43,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:43,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240401103] [2021-10-28 23:56:43,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240401103] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:43,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:43,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:56:43,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873809374] [2021-10-28 23:56:43,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:56:43,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:43,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:56:43,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:56:43,464 INFO L87 Difference]: Start difference. First operand 751 states and 1050 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:56:46,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:46,201 INFO L93 Difference]: Finished difference Result 1006 states and 1439 transitions. [2021-10-28 23:56:46,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:56:46,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2021-10-28 23:56:46,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:46,208 INFO L225 Difference]: With dead ends: 1006 [2021-10-28 23:56:46,208 INFO L226 Difference]: Without dead ends: 1006 [2021-10-28 23:56:46,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:56:46,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-10-28 23:56:46,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 794. [2021-10-28 23:56:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 623 states have (on average 1.3964686998394864) internal successors, (870), 635 states have internal predecessors, (870), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 23:56:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1111 transitions. [2021-10-28 23:56:46,238 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1111 transitions. Word has length 48 [2021-10-28 23:56:46,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:46,239 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1111 transitions. [2021-10-28 23:56:46,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:56:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1111 transitions. [2021-10-28 23:56:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 23:56:46,242 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:46,242 INFO L513 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] [2021-10-28 23:56:46,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:56:46,242 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:46,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:46,243 INFO L85 PathProgramCache]: Analyzing trace with hash -17559376, now seen corresponding path program 1 times [2021-10-28 23:56:46,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:46,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028549758] [2021-10-28 23:56:46,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:46,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:46,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:56:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:56:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:46,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:46,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028549758] [2021-10-28 23:56:46,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028549758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:46,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:46,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:56:46,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406110949] [2021-10-28 23:56:46,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:56:46,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:56:46,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:56:46,456 INFO L87 Difference]: Start difference. First operand 794 states and 1111 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:56:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:48,314 INFO L93 Difference]: Finished difference Result 927 states and 1338 transitions. [2021-10-28 23:56:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:56:48,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-10-28 23:56:48,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:48,321 INFO L225 Difference]: With dead ends: 927 [2021-10-28 23:56:48,321 INFO L226 Difference]: Without dead ends: 927 [2021-10-28 23:56:48,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:56:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2021-10-28 23:56:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 797. [2021-10-28 23:56:48,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 626 states have (on average 1.3961661341853036) internal successors, (874), 638 states have internal predecessors, (874), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 23:56:48,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1115 transitions. [2021-10-28 23:56:48,351 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1115 transitions. Word has length 50 [2021-10-28 23:56:48,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:48,351 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1115 transitions. [2021-10-28 23:56:48,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:56:48,352 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1115 transitions. [2021-10-28 23:56:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 23:56:48,355 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:48,355 INFO L513 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] [2021-10-28 23:56:48,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 23:56:48,355 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:48,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:48,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2011704082, now seen corresponding path program 1 times [2021-10-28 23:56:48,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:48,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744995744] [2021-10-28 23:56:48,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:48,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:48,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:56:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:48,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:56:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:48,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:48,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744995744] [2021-10-28 23:56:48,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744995744] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:48,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:48,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:56:48,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121229319] [2021-10-28 23:56:48,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:56:48,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:48,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:56:48,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:56:48,601 INFO L87 Difference]: Start difference. First operand 797 states and 1115 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:56:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:51,204 INFO L93 Difference]: Finished difference Result 914 states and 1320 transitions. [2021-10-28 23:56:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:56:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2021-10-28 23:56:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:51,209 INFO L225 Difference]: With dead ends: 914 [2021-10-28 23:56:51,209 INFO L226 Difference]: Without dead ends: 914 [2021-10-28 23:56:51,210 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:56:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-10-28 23:56:51,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2021-10-28 23:56:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 621 states have (on average 1.391304347826087) internal successors, (864), 633 states have internal predecessors, (864), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-28 23:56:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1105 transitions. [2021-10-28 23:56:51,238 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1105 transitions. Word has length 50 [2021-10-28 23:56:51,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:51,238 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1105 transitions. [2021-10-28 23:56:51,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:56:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1105 transitions. [2021-10-28 23:56:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 23:56:51,241 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:51,241 INFO L513 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] [2021-10-28 23:56:51,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 23:56:51,242 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:51,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1865011280, now seen corresponding path program 1 times [2021-10-28 23:56:51,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:51,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170852198] [2021-10-28 23:56:51,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:51,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:56:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:56:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:51,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:51,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170852198] [2021-10-28 23:56:51,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170852198] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:51,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:51,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:56:51,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157455546] [2021-10-28 23:56:51,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:56:51,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:51,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:56:51,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:56:51,426 INFO L87 Difference]: Start difference. First operand 792 states and 1105 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:56:53,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:53,501 INFO L93 Difference]: Finished difference Result 1074 states and 1532 transitions. [2021-10-28 23:56:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:56:53,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-10-28 23:56:53,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:53,506 INFO L225 Difference]: With dead ends: 1074 [2021-10-28 23:56:53,506 INFO L226 Difference]: Without dead ends: 1074 [2021-10-28 23:56:53,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:56:53,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-10-28 23:56:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 848. [2021-10-28 23:56:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 663 states have (on average 1.3725490196078431) internal successors, (910), 677 states have internal predecessors, (910), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-28 23:56:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1165 transitions. [2021-10-28 23:56:53,535 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1165 transitions. Word has length 50 [2021-10-28 23:56:53,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:53,536 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1165 transitions. [2021-10-28 23:56:53,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:56:53,536 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1165 transitions. [2021-10-28 23:56:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 23:56:53,539 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:53,539 INFO L513 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] [2021-10-28 23:56:53,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 23:56:53,540 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:53,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:53,540 INFO L85 PathProgramCache]: Analyzing trace with hash -540904097, now seen corresponding path program 1 times [2021-10-28 23:56:53,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:53,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870142718] [2021-10-28 23:56:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:53,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:56:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:56:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:53,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:53,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870142718] [2021-10-28 23:56:53,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870142718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:53,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:53,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:56:53,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400626473] [2021-10-28 23:56:53,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:56:53,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:53,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:56:53,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:56:53,778 INFO L87 Difference]: Start difference. First operand 848 states and 1165 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:56:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:55,526 INFO L93 Difference]: Finished difference Result 991 states and 1404 transitions. [2021-10-28 23:56:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:56:55,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2021-10-28 23:56:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:55,531 INFO L225 Difference]: With dead ends: 991 [2021-10-28 23:56:55,531 INFO L226 Difference]: Without dead ends: 991 [2021-10-28 23:56:55,532 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:56:55,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2021-10-28 23:56:55,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 867. [2021-10-28 23:56:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 679 states have (on average 1.369661266568483) internal successors, (930), 694 states have internal predecessors, (930), 113 states have call successors, (113), 52 states have call predecessors, (113), 74 states have return successors, (145), 128 states have call predecessors, (145), 105 states have call successors, (145) [2021-10-28 23:56:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1188 transitions. [2021-10-28 23:56:55,560 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1188 transitions. Word has length 52 [2021-10-28 23:56:55,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:55,561 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1188 transitions. [2021-10-28 23:56:55,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:56:55,561 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1188 transitions. [2021-10-28 23:56:55,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 23:56:55,564 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:55,564 INFO L513 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] [2021-10-28 23:56:55,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 23:56:55,565 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:55,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:55,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1037319808, now seen corresponding path program 1 times [2021-10-28 23:56:55,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:55,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206557180] [2021-10-28 23:56:55,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:55,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:55,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:55,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:55,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-10-28 23:56:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:55,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-10-28 23:56:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:55,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:55,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:55,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206557180] [2021-10-28 23:56:55,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206557180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:55,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:55,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:56:55,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381588430] [2021-10-28 23:56:55,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:56:55,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:55,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:56:55,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:56:55,741 INFO L87 Difference]: Start difference. First operand 867 states and 1188 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:56:58,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:58,371 INFO L93 Difference]: Finished difference Result 956 states and 1361 transitions. [2021-10-28 23:56:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:56:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2021-10-28 23:56:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:58,376 INFO L225 Difference]: With dead ends: 956 [2021-10-28 23:56:58,376 INFO L226 Difference]: Without dead ends: 956 [2021-10-28 23:56:58,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:56:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2021-10-28 23:56:58,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 836. [2021-10-28 23:56:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 655 states have (on average 1.369465648854962) internal successors, (897), 668 states have internal predecessors, (897), 111 states have call successors, (111), 51 states have call predecessors, (111), 69 states have return successors, (140), 123 states have call predecessors, (140), 104 states have call successors, (140) [2021-10-28 23:56:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2021-10-28 23:56:58,403 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 54 [2021-10-28 23:56:58,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:58,404 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2021-10-28 23:56:58,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:56:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2021-10-28 23:56:58,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:56:58,407 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:58,407 INFO L513 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] [2021-10-28 23:56:58,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 23:56:58,408 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:56:58,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1536910814, now seen corresponding path program 1 times [2021-10-28 23:56:58,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:56:58,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432552608] [2021-10-28 23:56:58,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:58,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:56:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:56:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:56:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:58,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:56:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:56:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:58,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:56:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:58,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:56:58,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432552608] [2021-10-28 23:56:58,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432552608] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:58,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:58,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:56:58,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446497715] [2021-10-28 23:56:58,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:56:58,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:56:58,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:56:58,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:56:58,646 INFO L87 Difference]: Start difference. First operand 836 states and 1148 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:57:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:01,016 INFO L93 Difference]: Finished difference Result 968 states and 1375 transitions. [2021-10-28 23:57:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:57:01,017 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2021-10-28 23:57:01,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:01,022 INFO L225 Difference]: With dead ends: 968 [2021-10-28 23:57:01,022 INFO L226 Difference]: Without dead ends: 967 [2021-10-28 23:57:01,023 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:57:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2021-10-28 23:57:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 843. [2021-10-28 23:57:01,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 661 states have (on average 1.367624810892587) internal successors, (904), 675 states have internal predecessors, (904), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2021-10-28 23:57:01,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1157 transitions. [2021-10-28 23:57:01,051 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1157 transitions. Word has length 51 [2021-10-28 23:57:01,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:01,051 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1157 transitions. [2021-10-28 23:57:01,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:57:01,052 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1157 transitions. [2021-10-28 23:57:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:57:01,054 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:01,055 INFO L513 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] [2021-10-28 23:57:01,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 23:57:01,055 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:01,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1537187644, now seen corresponding path program 1 times [2021-10-28 23:57:01,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:01,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401494825] [2021-10-28 23:57:01,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:01,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:01,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:57:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:01,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:01,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401494825] [2021-10-28 23:57:01,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401494825] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:01,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:01,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:57:01,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183466693] [2021-10-28 23:57:01,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:57:01,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:01,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:57:01,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:57:01,337 INFO L87 Difference]: Start difference. First operand 843 states and 1157 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:57:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:04,162 INFO L93 Difference]: Finished difference Result 983 states and 1391 transitions. [2021-10-28 23:57:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:57:04,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2021-10-28 23:57:04,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:04,168 INFO L225 Difference]: With dead ends: 983 [2021-10-28 23:57:04,168 INFO L226 Difference]: Without dead ends: 962 [2021-10-28 23:57:04,168 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:57:04,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2021-10-28 23:57:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 842. [2021-10-28 23:57:04,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3666666666666667) internal successors, (902), 674 states have internal predecessors, (902), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2021-10-28 23:57:04,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1155 transitions. [2021-10-28 23:57:04,198 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1155 transitions. Word has length 51 [2021-10-28 23:57:04,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:04,198 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1155 transitions. [2021-10-28 23:57:04,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 23:57:04,198 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1155 transitions. [2021-10-28 23:57:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:57:04,201 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:04,201 INFO L513 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] [2021-10-28 23:57:04,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 23:57:04,202 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:04,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash 855429365, now seen corresponding path program 1 times [2021-10-28 23:57:04,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:04,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821665838] [2021-10-28 23:57:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:04,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:04,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:04,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:04,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821665838] [2021-10-28 23:57:04,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821665838] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:04,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:04,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:57:04,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117159105] [2021-10-28 23:57:04,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:57:04,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:04,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:57:04,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:57:04,562 INFO L87 Difference]: Start difference. First operand 842 states and 1155 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:07,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:07,908 INFO L93 Difference]: Finished difference Result 968 states and 1372 transitions. [2021-10-28 23:57:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:57:07,908 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2021-10-28 23:57:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:07,913 INFO L225 Difference]: With dead ends: 968 [2021-10-28 23:57:07,914 INFO L226 Difference]: Without dead ends: 968 [2021-10-28 23:57:07,914 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:57:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2021-10-28 23:57:07,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 842. [2021-10-28 23:57:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3651515151515152) internal successors, (901), 674 states have internal predecessors, (901), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2021-10-28 23:57:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1154 transitions. [2021-10-28 23:57:07,942 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1154 transitions. Word has length 53 [2021-10-28 23:57:07,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:07,943 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1154 transitions. [2021-10-28 23:57:07,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1154 transitions. [2021-10-28 23:57:07,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 23:57:07,946 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:07,946 INFO L513 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] [2021-10-28 23:57:07,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 23:57:07,947 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:07,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:07,947 INFO L85 PathProgramCache]: Analyzing trace with hash -353388327, now seen corresponding path program 1 times [2021-10-28 23:57:07,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:07,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597194704] [2021-10-28 23:57:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:07,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:57:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:08,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:08,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:08,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:08,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597194704] [2021-10-28 23:57:08,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597194704] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:08,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:08,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:57:08,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701073968] [2021-10-28 23:57:08,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:57:08,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:08,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:57:08,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:57:08,172 INFO L87 Difference]: Start difference. First operand 842 states and 1154 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:57:11,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:11,227 INFO L93 Difference]: Finished difference Result 975 states and 1378 transitions. [2021-10-28 23:57:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:57:11,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2021-10-28 23:57:11,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:11,242 INFO L225 Difference]: With dead ends: 975 [2021-10-28 23:57:11,242 INFO L226 Difference]: Without dead ends: 943 [2021-10-28 23:57:11,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:57:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2021-10-28 23:57:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 815. [2021-10-28 23:57:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3746081504702194) internal successors, (877), 651 states have internal predecessors, (877), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2021-10-28 23:57:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1124 transitions. [2021-10-28 23:57:11,270 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1124 transitions. Word has length 52 [2021-10-28 23:57:11,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:11,271 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1124 transitions. [2021-10-28 23:57:11,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:57:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1124 transitions. [2021-10-28 23:57:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 23:57:11,275 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:11,275 INFO L513 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] [2021-10-28 23:57:11,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 23:57:11,275 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:11,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:11,276 INFO L85 PathProgramCache]: Analyzing trace with hash 116484228, now seen corresponding path program 1 times [2021-10-28 23:57:11,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:11,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208091184] [2021-10-28 23:57:11,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:11,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:11,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:11,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:11,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:11,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208091184] [2021-10-28 23:57:11,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208091184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:11,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:11,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:57:11,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345934315] [2021-10-28 23:57:11,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:57:11,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:11,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:57:11,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:57:11,653 INFO L87 Difference]: Start difference. First operand 815 states and 1124 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:15,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:15,467 INFO L93 Difference]: Finished difference Result 939 states and 1339 transitions. [2021-10-28 23:57:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:57:15,470 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2021-10-28 23:57:15,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:15,474 INFO L225 Difference]: With dead ends: 939 [2021-10-28 23:57:15,475 INFO L226 Difference]: Without dead ends: 939 [2021-10-28 23:57:15,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:57:15,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2021-10-28 23:57:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 815. [2021-10-28 23:57:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3730407523510972) internal successors, (876), 651 states have internal predecessors, (876), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2021-10-28 23:57:15,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1123 transitions. [2021-10-28 23:57:15,500 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1123 transitions. Word has length 54 [2021-10-28 23:57:15,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:15,501 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1123 transitions. [2021-10-28 23:57:15,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1123 transitions. [2021-10-28 23:57:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 23:57:15,504 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:15,505 INFO L513 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] [2021-10-28 23:57:15,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 23:57:15,505 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:15,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:15,506 INFO L85 PathProgramCache]: Analyzing trace with hash -371811202, now seen corresponding path program 1 times [2021-10-28 23:57:15,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:15,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385809440] [2021-10-28 23:57:15,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:15,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:15,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:15,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:15,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385809440] [2021-10-28 23:57:15,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385809440] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:15,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:15,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 23:57:15,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202950559] [2021-10-28 23:57:15,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:57:15,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:57:15,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:57:15,804 INFO L87 Difference]: Start difference. First operand 815 states and 1123 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:18,965 INFO L93 Difference]: Finished difference Result 963 states and 1369 transitions. [2021-10-28 23:57:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:57:18,966 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2021-10-28 23:57:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:18,970 INFO L225 Difference]: With dead ends: 963 [2021-10-28 23:57:18,970 INFO L226 Difference]: Without dead ends: 926 [2021-10-28 23:57:18,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:57:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-10-28 23:57:18,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 806. [2021-10-28 23:57:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 631 states have (on average 1.3565768621236134) internal successors, (856), 644 states have internal predecessors, (856), 107 states have call successors, (107), 49 states have call predecessors, (107), 67 states have return successors, (136), 119 states have call predecessors, (136), 100 states have call successors, (136) [2021-10-28 23:57:19,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1099 transitions. [2021-10-28 23:57:19,004 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1099 transitions. Word has length 55 [2021-10-28 23:57:19,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:19,004 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 1099 transitions. [2021-10-28 23:57:19,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1099 transitions. [2021-10-28 23:57:19,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 23:57:19,008 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:19,008 INFO L513 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] [2021-10-28 23:57:19,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-28 23:57:19,009 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:19,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:19,010 INFO L85 PathProgramCache]: Analyzing trace with hash 149703456, now seen corresponding path program 1 times [2021-10-28 23:57:19,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:19,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011698954] [2021-10-28 23:57:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:19,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:19,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-10-28 23:57:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:57:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:19,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:19,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011698954] [2021-10-28 23:57:19,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011698954] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:19,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:19,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 23:57:19,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014539815] [2021-10-28 23:57:19,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:57:19,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:19,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:57:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:57:19,369 INFO L87 Difference]: Start difference. First operand 806 states and 1099 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:57:23,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:23,232 INFO L93 Difference]: Finished difference Result 939 states and 1323 transitions. [2021-10-28 23:57:23,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:57:23,232 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-10-28 23:57:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:23,237 INFO L225 Difference]: With dead ends: 939 [2021-10-28 23:57:23,238 INFO L226 Difference]: Without dead ends: 924 [2021-10-28 23:57:23,238 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:57:23,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2021-10-28 23:57:23,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 804. [2021-10-28 23:57:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 643 states have internal predecessors, (854), 106 states have call successors, (106), 49 states have call predecessors, (106), 67 states have return successors, (135), 118 states have call predecessors, (135), 99 states have call successors, (135) [2021-10-28 23:57:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1095 transitions. [2021-10-28 23:57:23,270 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1095 transitions. Word has length 56 [2021-10-28 23:57:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:23,270 INFO L470 AbstractCegarLoop]: Abstraction has 804 states and 1095 transitions. [2021-10-28 23:57:23,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:57:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1095 transitions. [2021-10-28 23:57:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 23:57:23,274 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:23,275 INFO L513 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] [2021-10-28 23:57:23,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-28 23:57:23,275 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:23,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1617706055, now seen corresponding path program 1 times [2021-10-28 23:57:23,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:23,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917917768] [2021-10-28 23:57:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:23,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:23,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-10-28 23:57:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:23,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:23,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:23,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917917768] [2021-10-28 23:57:23,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917917768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:23,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:23,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 23:57:23,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226223166] [2021-10-28 23:57:23,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:57:23,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:23,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:57:23,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:57:23,625 INFO L87 Difference]: Start difference. First operand 804 states and 1095 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:57:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:27,246 INFO L93 Difference]: Finished difference Result 934 states and 1316 transitions. [2021-10-28 23:57:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:57:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2021-10-28 23:57:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:27,251 INFO L225 Difference]: With dead ends: 934 [2021-10-28 23:57:27,251 INFO L226 Difference]: Without dead ends: 919 [2021-10-28 23:57:27,251 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:57:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-10-28 23:57:27,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 799. [2021-10-28 23:57:27,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.3556618819776713) internal successors, (850), 640 states have internal predecessors, (850), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2021-10-28 23:57:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1088 transitions. [2021-10-28 23:57:27,280 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1088 transitions. Word has length 55 [2021-10-28 23:57:27,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:27,280 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1088 transitions. [2021-10-28 23:57:27,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:57:27,281 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1088 transitions. [2021-10-28 23:57:27,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 23:57:27,285 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:27,285 INFO L513 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] [2021-10-28 23:57:27,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-28 23:57:27,285 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash -29735584, now seen corresponding path program 1 times [2021-10-28 23:57:27,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:27,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803879588] [2021-10-28 23:57:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:27,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:27,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:27,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:27,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:57:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:27,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:57:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:27,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:27,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:27,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803879588] [2021-10-28 23:57:27,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803879588] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:27,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:27,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:57:27,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733052326] [2021-10-28 23:57:27,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:57:27,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:27,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:57:27,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:57:27,605 INFO L87 Difference]: Start difference. First operand 799 states and 1088 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:31,070 INFO L93 Difference]: Finished difference Result 941 states and 1319 transitions. [2021-10-28 23:57:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:57:31,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2021-10-28 23:57:31,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:31,075 INFO L225 Difference]: With dead ends: 941 [2021-10-28 23:57:31,075 INFO L226 Difference]: Without dead ends: 941 [2021-10-28 23:57:31,075 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:57:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2021-10-28 23:57:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 799. [2021-10-28 23:57:31,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.354066985645933) internal successors, (849), 640 states have internal predecessors, (849), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2021-10-28 23:57:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1087 transitions. [2021-10-28 23:57:31,105 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1087 transitions. Word has length 56 [2021-10-28 23:57:31,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:31,105 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1087 transitions. [2021-10-28 23:57:31,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1087 transitions. [2021-10-28 23:57:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 23:57:31,110 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:31,110 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:57:31,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-28 23:57:31,111 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:31,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:31,112 INFO L85 PathProgramCache]: Analyzing trace with hash 961876664, now seen corresponding path program 1 times [2021-10-28 23:57:31,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:31,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972282583] [2021-10-28 23:57:31,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:31,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-10-28 23:57:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-10-28 23:57:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:57:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 23:57:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:31,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:31,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972282583] [2021-10-28 23:57:31,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972282583] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:57:31,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882191209] [2021-10-28 23:57:31,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:31,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:57:31,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:57:31,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:57:31,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:57:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:57:31,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:57:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:32,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882191209] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:57:32,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:57:32,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2021-10-28 23:57:32,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074224348] [2021-10-28 23:57:32,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:57:32,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:32,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:57:32,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:57:32,517 INFO L87 Difference]: Start difference. First operand 799 states and 1087 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 6 states have internal predecessors, (105), 5 states have call successors, (22), 11 states have call predecessors, (22), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2021-10-28 23:57:36,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:36,565 INFO L93 Difference]: Finished difference Result 1179 states and 1630 transitions. [2021-10-28 23:57:36,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:57:36,565 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 6 states have internal predecessors, (105), 5 states have call successors, (22), 11 states have call predecessors, (22), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) Word has length 74 [2021-10-28 23:57:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:36,570 INFO L225 Difference]: With dead ends: 1179 [2021-10-28 23:57:36,571 INFO L226 Difference]: Without dead ends: 1179 [2021-10-28 23:57:36,571 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:57:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-10-28 23:57:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 878. [2021-10-28 23:57:36,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 691 states have (on average 1.3429811866859624) internal successors, (928), 703 states have internal predecessors, (928), 109 states have call successors, (109), 55 states have call predecessors, (109), 77 states have return successors, (144), 126 states have call predecessors, (144), 103 states have call successors, (144) [2021-10-28 23:57:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1181 transitions. [2021-10-28 23:57:36,599 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1181 transitions. Word has length 74 [2021-10-28 23:57:36,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:36,599 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1181 transitions. [2021-10-28 23:57:36,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 6 states have internal predecessors, (105), 5 states have call successors, (22), 11 states have call predecessors, (22), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2021-10-28 23:57:36,600 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1181 transitions. [2021-10-28 23:57:36,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 23:57:36,603 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:36,603 INFO L513 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] [2021-10-28 23:57:36,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:57:36,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:57:36,816 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:36,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1650252631, now seen corresponding path program 1 times [2021-10-28 23:57:36,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:36,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442628285] [2021-10-28 23:57:36,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:36,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:37,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:37,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:57:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:57:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:37,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:37,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:37,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442628285] [2021-10-28 23:57:37,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442628285] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:37,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:37,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-28 23:57:37,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168520441] [2021-10-28 23:57:37,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:57:37,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:37,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:57:37,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:57:37,330 INFO L87 Difference]: Start difference. First operand 878 states and 1181 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:57:41,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:41,429 INFO L93 Difference]: Finished difference Result 1043 states and 1451 transitions. [2021-10-28 23:57:41,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:57:41,429 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2021-10-28 23:57:41,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:41,433 INFO L225 Difference]: With dead ends: 1043 [2021-10-28 23:57:41,434 INFO L226 Difference]: Without dead ends: 1020 [2021-10-28 23:57:41,434 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:57:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2021-10-28 23:57:41,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 877. [2021-10-28 23:57:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 690 states have (on average 1.3289855072463768) internal successors, (917), 702 states have internal predecessors, (917), 109 states have call successors, (109), 55 states have call predecessors, (109), 77 states have return successors, (144), 126 states have call predecessors, (144), 103 states have call successors, (144) [2021-10-28 23:57:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1170 transitions. [2021-10-28 23:57:41,459 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1170 transitions. Word has length 59 [2021-10-28 23:57:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:41,460 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1170 transitions. [2021-10-28 23:57:41,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:57:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1170 transitions. [2021-10-28 23:57:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 23:57:41,463 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:41,463 INFO L513 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] [2021-10-28 23:57:41,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-28 23:57:41,464 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:41,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:41,464 INFO L85 PathProgramCache]: Analyzing trace with hash 846257089, now seen corresponding path program 1 times [2021-10-28 23:57:41,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:41,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687982375] [2021-10-28 23:57:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:41,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:41,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:41,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:41,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:41,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:41,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687982375] [2021-10-28 23:57:41,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687982375] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:41,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:41,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 23:57:41,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423459104] [2021-10-28 23:57:41,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:57:41,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:41,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:57:41,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:57:41,766 INFO L87 Difference]: Start difference. First operand 877 states and 1170 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:57:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:44,782 INFO L93 Difference]: Finished difference Result 1032 states and 1425 transitions. [2021-10-28 23:57:44,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:57:44,782 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-10-28 23:57:44,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:44,787 INFO L225 Difference]: With dead ends: 1032 [2021-10-28 23:57:44,787 INFO L226 Difference]: Without dead ends: 1015 [2021-10-28 23:57:44,787 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:57:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2021-10-28 23:57:44,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 874. [2021-10-28 23:57:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 688 states have (on average 1.3284883720930232) internal successors, (914), 700 states have internal predecessors, (914), 108 states have call successors, (108), 55 states have call predecessors, (108), 77 states have return successors, (143), 125 states have call predecessors, (143), 102 states have call successors, (143) [2021-10-28 23:57:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1165 transitions. [2021-10-28 23:57:44,816 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1165 transitions. Word has length 58 [2021-10-28 23:57:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:44,817 INFO L470 AbstractCegarLoop]: Abstraction has 874 states and 1165 transitions. [2021-10-28 23:57:44,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:57:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1165 transitions. [2021-10-28 23:57:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 23:57:44,820 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:44,821 INFO L513 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] [2021-10-28 23:57:44,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-28 23:57:44,821 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:44,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:44,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1695565928, now seen corresponding path program 1 times [2021-10-28 23:57:44,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:44,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026729115] [2021-10-28 23:57:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:44,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:45,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 23:57:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:45,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:45,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026729115] [2021-10-28 23:57:45,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026729115] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:45,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:45,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 23:57:45,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131962787] [2021-10-28 23:57:45,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:57:45,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:45,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:57:45,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:57:45,228 INFO L87 Difference]: Start difference. First operand 874 states and 1165 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:48,016 INFO L93 Difference]: Finished difference Result 1034 states and 1425 transitions. [2021-10-28 23:57:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:57:48,017 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2021-10-28 23:57:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:48,021 INFO L225 Difference]: With dead ends: 1034 [2021-10-28 23:57:48,022 INFO L226 Difference]: Without dead ends: 1000 [2021-10-28 23:57:48,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:57:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2021-10-28 23:57:48,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 862. [2021-10-28 23:57:48,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 679 states have (on average 1.3240058910162003) internal successors, (899), 691 states have internal predecessors, (899), 105 states have call successors, (105), 55 states have call predecessors, (105), 77 states have return successors, (140), 122 states have call predecessors, (140), 99 states have call successors, (140) [2021-10-28 23:57:48,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1144 transitions. [2021-10-28 23:57:48,047 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1144 transitions. Word has length 59 [2021-10-28 23:57:48,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:48,048 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1144 transitions. [2021-10-28 23:57:48,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1144 transitions. [2021-10-28 23:57:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 23:57:48,052 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:48,052 INFO L513 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] [2021-10-28 23:57:48,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-28 23:57:48,052 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:48,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1230874093, now seen corresponding path program 1 times [2021-10-28 23:57:48,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:48,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496700363] [2021-10-28 23:57:48,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:48,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:57:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:57:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 23:57:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:48,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:48,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496700363] [2021-10-28 23:57:48,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496700363] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:48,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:48,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:57:48,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176595496] [2021-10-28 23:57:48,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:57:48,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:48,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:57:48,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:57:48,310 INFO L87 Difference]: Start difference. First operand 862 states and 1144 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:57:51,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:51,069 INFO L93 Difference]: Finished difference Result 1068 states and 1495 transitions. [2021-10-28 23:57:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:57:51,070 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2021-10-28 23:57:51,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:51,073 INFO L225 Difference]: With dead ends: 1068 [2021-10-28 23:57:51,073 INFO L226 Difference]: Without dead ends: 1068 [2021-10-28 23:57:51,073 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:57:51,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-10-28 23:57:51,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 869. [2021-10-28 23:57:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 684 states have (on average 1.3245614035087718) internal successors, (906), 697 states have internal predecessors, (906), 106 states have call successors, (106), 55 states have call predecessors, (106), 78 states have return successors, (147), 123 states have call predecessors, (147), 100 states have call successors, (147) [2021-10-28 23:57:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1159 transitions. [2021-10-28 23:57:51,096 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1159 transitions. Word has length 60 [2021-10-28 23:57:51,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:51,097 INFO L470 AbstractCegarLoop]: Abstraction has 869 states and 1159 transitions. [2021-10-28 23:57:51,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:57:51,097 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1159 transitions. [2021-10-28 23:57:51,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 23:57:51,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:51,101 INFO L513 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] [2021-10-28 23:57:51,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-28 23:57:51,101 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:51,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:51,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1505633707, now seen corresponding path program 1 times [2021-10-28 23:57:51,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:51,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533688409] [2021-10-28 23:57:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:51,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:57:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:57:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 23:57:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:51,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:51,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533688409] [2021-10-28 23:57:51,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533688409] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:51,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:51,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 23:57:51,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637366307] [2021-10-28 23:57:51,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:57:51,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:51,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:57:51,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:57:51,469 INFO L87 Difference]: Start difference. First operand 869 states and 1159 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:57:54,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:54,101 INFO L93 Difference]: Finished difference Result 1030 states and 1429 transitions. [2021-10-28 23:57:54,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:57:54,102 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2021-10-28 23:57:54,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:54,106 INFO L225 Difference]: With dead ends: 1030 [2021-10-28 23:57:54,106 INFO L226 Difference]: Without dead ends: 1008 [2021-10-28 23:57:54,107 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:57:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-10-28 23:57:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 867. [2021-10-28 23:57:54,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 683 states have (on average 1.3235724743777453) internal successors, (904), 696 states have internal predecessors, (904), 105 states have call successors, (105), 55 states have call predecessors, (105), 78 states have return successors, (146), 122 states have call predecessors, (146), 99 states have call successors, (146) [2021-10-28 23:57:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1155 transitions. [2021-10-28 23:57:54,132 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1155 transitions. Word has length 60 [2021-10-28 23:57:54,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:54,133 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1155 transitions. [2021-10-28 23:57:54,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:57:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1155 transitions. [2021-10-28 23:57:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 23:57:54,137 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:54,137 INFO L513 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] [2021-10-28 23:57:54,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-28 23:57:54,138 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:54,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash -297990324, now seen corresponding path program 1 times [2021-10-28 23:57:54,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:54,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777640625] [2021-10-28 23:57:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:54,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:54,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:54,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:54,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:57:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:54,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:54,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:54,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777640625] [2021-10-28 23:57:54,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777640625] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:54,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:54,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:57:54,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064255249] [2021-10-28 23:57:54,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:57:54,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:54,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:57:54,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:57:54,478 INFO L87 Difference]: Start difference. First operand 867 states and 1155 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:56,317 INFO L93 Difference]: Finished difference Result 1010 states and 1403 transitions. [2021-10-28 23:57:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:57:56,318 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2021-10-28 23:57:56,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:56,325 INFO L225 Difference]: With dead ends: 1010 [2021-10-28 23:57:56,325 INFO L226 Difference]: Without dead ends: 1010 [2021-10-28 23:57:56,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:57:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2021-10-28 23:57:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 867. [2021-10-28 23:57:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 683 states have (on average 1.322108345534407) internal successors, (903), 696 states have internal predecessors, (903), 105 states have call successors, (105), 55 states have call predecessors, (105), 78 states have return successors, (146), 122 states have call predecessors, (146), 99 states have call successors, (146) [2021-10-28 23:57:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1154 transitions. [2021-10-28 23:57:56,353 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1154 transitions. Word has length 60 [2021-10-28 23:57:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:56,353 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1154 transitions. [2021-10-28 23:57:56,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:57:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1154 transitions. [2021-10-28 23:57:56,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 23:57:56,358 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:56,358 INFO L513 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] [2021-10-28 23:57:56,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-28 23:57:56,359 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:57:56,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash -807463414, now seen corresponding path program 1 times [2021-10-28 23:57:56,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:57:56,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647472223] [2021-10-28 23:57:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:56,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:57:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:57:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:56,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:57:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:56,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:57:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:56,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:57:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:57:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:57:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:57:56,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:57:56,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647472223] [2021-10-28 23:57:56,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647472223] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:57:56,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:56,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 23:57:56,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862554022] [2021-10-28 23:57:56,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:57:56,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:57:56,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:57:56,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:57:56,735 INFO L87 Difference]: Start difference. First operand 867 states and 1154 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:58:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:00,160 INFO L93 Difference]: Finished difference Result 1044 states and 1448 transitions. [2021-10-28 23:58:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:58:00,161 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2021-10-28 23:58:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:00,163 INFO L225 Difference]: With dead ends: 1044 [2021-10-28 23:58:00,163 INFO L226 Difference]: Without dead ends: 997 [2021-10-28 23:58:00,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:58:00,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2021-10-28 23:58:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 859. [2021-10-28 23:58:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 677 states have (on average 1.3175775480059084) internal successors, (892), 690 states have internal predecessors, (892), 103 states have call successors, (103), 55 states have call predecessors, (103), 78 states have return successors, (144), 120 states have call predecessors, (144), 97 states have call successors, (144) [2021-10-28 23:58:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1139 transitions. [2021-10-28 23:58:00,185 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1139 transitions. Word has length 60 [2021-10-28 23:58:00,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:00,186 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1139 transitions. [2021-10-28 23:58:00,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:58:00,186 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1139 transitions. [2021-10-28 23:58:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 23:58:00,190 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:00,190 INFO L513 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] [2021-10-28 23:58:00,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-28 23:58:00,190 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:00,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:00,191 INFO L85 PathProgramCache]: Analyzing trace with hash -819904678, now seen corresponding path program 1 times [2021-10-28 23:58:00,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:00,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375777278] [2021-10-28 23:58:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:00,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:58:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:58:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:00,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:00,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375777278] [2021-10-28 23:58:00,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375777278] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:00,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:00,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:58:00,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399185699] [2021-10-28 23:58:00,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:58:00,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:00,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:58:00,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:58:00,505 INFO L87 Difference]: Start difference. First operand 859 states and 1139 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:02,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:02,916 INFO L93 Difference]: Finished difference Result 1015 states and 1423 transitions. [2021-10-28 23:58:02,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:58:02,917 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2021-10-28 23:58:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:02,920 INFO L225 Difference]: With dead ends: 1015 [2021-10-28 23:58:02,920 INFO L226 Difference]: Without dead ends: 1013 [2021-10-28 23:58:02,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:58:02,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2021-10-28 23:58:02,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 863. [2021-10-28 23:58:02,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 679 states have (on average 1.316642120765832) internal successors, (894), 694 states have internal predecessors, (894), 103 states have call successors, (103), 55 states have call predecessors, (103), 80 states have return successors, (160), 120 states have call predecessors, (160), 97 states have call successors, (160) [2021-10-28 23:58:02,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1157 transitions. [2021-10-28 23:58:02,946 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1157 transitions. Word has length 61 [2021-10-28 23:58:02,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:02,947 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1157 transitions. [2021-10-28 23:58:02,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1157 transitions. [2021-10-28 23:58:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 23:58:02,951 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:02,951 INFO L513 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] [2021-10-28 23:58:02,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-28 23:58:02,952 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:02,952 INFO L85 PathProgramCache]: Analyzing trace with hash 153196542, now seen corresponding path program 1 times [2021-10-28 23:58:02,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:02,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065932365] [2021-10-28 23:58:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:02,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-10-28 23:58:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:03,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:03,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065932365] [2021-10-28 23:58:03,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065932365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:03,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:03,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-28 23:58:03,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102465951] [2021-10-28 23:58:03,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:58:03,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:03,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:58:03,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:58:03,498 INFO L87 Difference]: Start difference. First operand 863 states and 1157 transitions. Second operand has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:58:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:07,700 INFO L93 Difference]: Finished difference Result 1022 states and 1423 transitions. [2021-10-28 23:58:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:58:07,700 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2021-10-28 23:58:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:07,704 INFO L225 Difference]: With dead ends: 1022 [2021-10-28 23:58:07,705 INFO L226 Difference]: Without dead ends: 1001 [2021-10-28 23:58:07,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:58:07,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-10-28 23:58:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 861. [2021-10-28 23:58:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 678 states have (on average 1.3156342182890854) internal successors, (892), 693 states have internal predecessors, (892), 102 states have call successors, (102), 55 states have call predecessors, (102), 80 states have return successors, (159), 119 states have call predecessors, (159), 96 states have call successors, (159) [2021-10-28 23:58:07,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1153 transitions. [2021-10-28 23:58:07,732 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1153 transitions. Word has length 62 [2021-10-28 23:58:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:07,733 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1153 transitions. [2021-10-28 23:58:07,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:58:07,733 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1153 transitions. [2021-10-28 23:58:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 23:58:07,737 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:07,737 INFO L513 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] [2021-10-28 23:58:07,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-28 23:58:07,738 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:07,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:07,738 INFO L85 PathProgramCache]: Analyzing trace with hash -317898980, now seen corresponding path program 1 times [2021-10-28 23:58:07,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:07,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4319268] [2021-10-28 23:58:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:07,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:07,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:08,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:08,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:08,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4319268] [2021-10-28 23:58:08,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4319268] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:08,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:08,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 23:58:08,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835179299] [2021-10-28 23:58:08,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:58:08,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:08,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:58:08,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:58:08,222 INFO L87 Difference]: Start difference. First operand 861 states and 1153 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:12,436 INFO L93 Difference]: Finished difference Result 1013 states and 1412 transitions. [2021-10-28 23:58:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:58:12,436 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2021-10-28 23:58:12,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:12,439 INFO L225 Difference]: With dead ends: 1013 [2021-10-28 23:58:12,439 INFO L226 Difference]: Without dead ends: 994 [2021-10-28 23:58:12,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:58:12,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2021-10-28 23:58:12,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 856. [2021-10-28 23:58:12,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 675 states have (on average 1.3155555555555556) internal successors, (888), 690 states have internal predecessors, (888), 101 states have call successors, (101), 55 states have call predecessors, (101), 79 states have return successors, (157), 117 states have call predecessors, (157), 95 states have call successors, (157) [2021-10-28 23:58:12,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1146 transitions. [2021-10-28 23:58:12,467 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1146 transitions. Word has length 63 [2021-10-28 23:58:12,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:12,468 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 1146 transitions. [2021-10-28 23:58:12,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1146 transitions. [2021-10-28 23:58:12,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 23:58:12,472 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:12,472 INFO L513 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] [2021-10-28 23:58:12,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-28 23:58:12,473 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:12,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:12,473 INFO L85 PathProgramCache]: Analyzing trace with hash 251959398, now seen corresponding path program 1 times [2021-10-28 23:58:12,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:12,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820444357] [2021-10-28 23:58:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:12,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:58:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:12,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:12,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820444357] [2021-10-28 23:58:12,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820444357] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:12,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:12,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 23:58:12,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708630618] [2021-10-28 23:58:12,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:58:12,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:58:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:58:12,948 INFO L87 Difference]: Start difference. First operand 856 states and 1146 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:16,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:16,316 INFO L93 Difference]: Finished difference Result 1008 states and 1405 transitions. [2021-10-28 23:58:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:58:16,317 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2021-10-28 23:58:16,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:16,320 INFO L225 Difference]: With dead ends: 1008 [2021-10-28 23:58:16,320 INFO L226 Difference]: Without dead ends: 981 [2021-10-28 23:58:16,320 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:58:16,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2021-10-28 23:58:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 845. [2021-10-28 23:58:16,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 667 states have (on average 1.3163418290854574) internal successors, (878), 682 states have internal predecessors, (878), 99 states have call successors, (99), 55 states have call predecessors, (99), 78 states have return successors, (154), 114 states have call predecessors, (154), 93 states have call successors, (154) [2021-10-28 23:58:16,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1131 transitions. [2021-10-28 23:58:16,361 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1131 transitions. Word has length 69 [2021-10-28 23:58:16,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:16,362 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 1131 transitions. [2021-10-28 23:58:16,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:16,363 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1131 transitions. [2021-10-28 23:58:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 23:58:16,366 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:16,366 INFO L513 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] [2021-10-28 23:58:16,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-28 23:58:16,367 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:16,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash -136722259, now seen corresponding path program 1 times [2021-10-28 23:58:16,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:16,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420198602] [2021-10-28 23:58:16,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:16,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:58:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:16,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:16,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420198602] [2021-10-28 23:58:16,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420198602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:16,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:16,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 23:58:16,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574892990] [2021-10-28 23:58:16,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:58:16,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:16,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:58:16,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:58:16,799 INFO L87 Difference]: Start difference. First operand 845 states and 1131 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:20,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:20,775 INFO L93 Difference]: Finished difference Result 995 states and 1386 transitions. [2021-10-28 23:58:20,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:58:20,776 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2021-10-28 23:58:20,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:20,779 INFO L225 Difference]: With dead ends: 995 [2021-10-28 23:58:20,780 INFO L226 Difference]: Without dead ends: 976 [2021-10-28 23:58:20,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:58:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2021-10-28 23:58:20,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 840. [2021-10-28 23:58:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 664 states have (on average 1.3162650602409638) internal successors, (874), 679 states have internal predecessors, (874), 98 states have call successors, (98), 55 states have call predecessors, (98), 77 states have return successors, (152), 112 states have call predecessors, (152), 92 states have call successors, (152) [2021-10-28 23:58:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1124 transitions. [2021-10-28 23:58:20,803 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1124 transitions. Word has length 62 [2021-10-28 23:58:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:20,803 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 1124 transitions. [2021-10-28 23:58:20,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1124 transitions. [2021-10-28 23:58:20,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 23:58:20,807 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:20,808 INFO L513 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] [2021-10-28 23:58:20,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-28 23:58:20,808 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:20,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:20,809 INFO L85 PathProgramCache]: Analyzing trace with hash -937088575, now seen corresponding path program 1 times [2021-10-28 23:58:20,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:20,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487895884] [2021-10-28 23:58:20,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:20,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:58:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:21,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:21,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:21,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487895884] [2021-10-28 23:58:21,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487895884] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:21,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:21,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 23:58:21,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244357812] [2021-10-28 23:58:21,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:58:21,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:21,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:58:21,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:58:21,358 INFO L87 Difference]: Start difference. First operand 840 states and 1124 transitions. Second operand has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:58:24,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:24,819 INFO L93 Difference]: Finished difference Result 997 states and 1386 transitions. [2021-10-28 23:58:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:58:24,820 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 66 [2021-10-28 23:58:24,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:24,823 INFO L225 Difference]: With dead ends: 997 [2021-10-28 23:58:24,823 INFO L226 Difference]: Without dead ends: 975 [2021-10-28 23:58:24,823 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:58:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2021-10-28 23:58:24,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 838. [2021-10-28 23:58:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 663 states have (on average 1.315233785822021) internal successors, (872), 678 states have internal predecessors, (872), 97 states have call successors, (97), 55 states have call predecessors, (97), 77 states have return successors, (151), 111 states have call predecessors, (151), 91 states have call successors, (151) [2021-10-28 23:58:24,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1120 transitions. [2021-10-28 23:58:24,849 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1120 transitions. Word has length 66 [2021-10-28 23:58:24,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:24,850 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1120 transitions. [2021-10-28 23:58:24,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:58:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1120 transitions. [2021-10-28 23:58:24,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 23:58:24,853 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:24,854 INFO L513 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] [2021-10-28 23:58:24,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-28 23:58:24,854 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:24,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:24,855 INFO L85 PathProgramCache]: Analyzing trace with hash -972482111, now seen corresponding path program 1 times [2021-10-28 23:58:24,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:24,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316966377] [2021-10-28 23:58:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:24,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:58:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:25,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:25,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316966377] [2021-10-28 23:58:25,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316966377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:25,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:25,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 23:58:25,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228190341] [2021-10-28 23:58:25,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:58:25,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:25,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:58:25,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:58:25,436 INFO L87 Difference]: Start difference. First operand 838 states and 1120 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:58:28,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:28,830 INFO L93 Difference]: Finished difference Result 994 states and 1379 transitions. [2021-10-28 23:58:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:58:28,831 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2021-10-28 23:58:28,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:28,834 INFO L225 Difference]: With dead ends: 994 [2021-10-28 23:58:28,834 INFO L226 Difference]: Without dead ends: 972 [2021-10-28 23:58:28,835 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:58:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2021-10-28 23:58:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 836. [2021-10-28 23:58:28,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 662 states have (on average 1.3141993957703928) internal successors, (870), 677 states have internal predecessors, (870), 96 states have call successors, (96), 55 states have call predecessors, (96), 77 states have return successors, (150), 110 states have call predecessors, (150), 90 states have call successors, (150) [2021-10-28 23:58:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1116 transitions. [2021-10-28 23:58:28,860 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1116 transitions. Word has length 67 [2021-10-28 23:58:28,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:28,861 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1116 transitions. [2021-10-28 23:58:28,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:58:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1116 transitions. [2021-10-28 23:58:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 23:58:28,864 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:28,864 INFO L513 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] [2021-10-28 23:58:28,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-28 23:58:28,865 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:28,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2145458307, now seen corresponding path program 1 times [2021-10-28 23:58:28,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:28,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80819511] [2021-10-28 23:58:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:28,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:29,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:29,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:58:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:29,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:29,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80819511] [2021-10-28 23:58:29,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80819511] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:29,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:29,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-28 23:58:29,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689380694] [2021-10-28 23:58:29,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:58:29,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:58:29,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:58:29,378 INFO L87 Difference]: Start difference. First operand 836 states and 1116 transitions. Second operand has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:58:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:32,702 INFO L93 Difference]: Finished difference Result 989 states and 1370 transitions. [2021-10-28 23:58:32,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:58:32,703 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2021-10-28 23:58:32,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:32,706 INFO L225 Difference]: With dead ends: 989 [2021-10-28 23:58:32,706 INFO L226 Difference]: Without dead ends: 968 [2021-10-28 23:58:32,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:58:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2021-10-28 23:58:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 834. [2021-10-28 23:58:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 661 states have (on average 1.313161875945537) internal successors, (868), 676 states have internal predecessors, (868), 95 states have call successors, (95), 55 states have call predecessors, (95), 77 states have return successors, (149), 109 states have call predecessors, (149), 89 states have call successors, (149) [2021-10-28 23:58:32,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1112 transitions. [2021-10-28 23:58:32,727 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1112 transitions. Word has length 63 [2021-10-28 23:58:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:32,727 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1112 transitions. [2021-10-28 23:58:32,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:58:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1112 transitions. [2021-10-28 23:58:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 23:58:32,730 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:32,731 INFO L513 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] [2021-10-28 23:58:32,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-28 23:58:32,731 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:32,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash 727665943, now seen corresponding path program 1 times [2021-10-28 23:58:32,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:32,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737316061] [2021-10-28 23:58:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:32,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:58:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 23:58:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:32,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:32,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737316061] [2021-10-28 23:58:32,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737316061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:32,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:32,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:58:32,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147557576] [2021-10-28 23:58:32,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:58:32,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:32,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:58:32,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:58:32,964 INFO L87 Difference]: Start difference. First operand 834 states and 1112 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:34,583 INFO L93 Difference]: Finished difference Result 829 states and 1097 transitions. [2021-10-28 23:58:34,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:58:34,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2021-10-28 23:58:34,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:34,586 INFO L225 Difference]: With dead ends: 829 [2021-10-28 23:58:34,586 INFO L226 Difference]: Without dead ends: 825 [2021-10-28 23:58:34,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:58:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2021-10-28 23:58:34,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 704. [2021-10-28 23:58:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 558 states have (on average 1.3010752688172043) internal successors, (726), 573 states have internal predecessors, (726), 81 states have call successors, (81), 48 states have call predecessors, (81), 64 states have return successors, (102), 89 states have call predecessors, (102), 75 states have call successors, (102) [2021-10-28 23:58:34,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 909 transitions. [2021-10-28 23:58:34,599 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 909 transitions. Word has length 63 [2021-10-28 23:58:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:34,599 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 909 transitions. [2021-10-28 23:58:34,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:34,600 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 909 transitions. [2021-10-28 23:58:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 23:58:34,602 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:34,602 INFO L513 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] [2021-10-28 23:58:34,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-28 23:58:34,603 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1717945833, now seen corresponding path program 1 times [2021-10-28 23:58:34,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:34,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905984227] [2021-10-28 23:58:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:34,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-10-28 23:58:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 23:58:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:58:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:58:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 23:58:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:34,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:34,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905984227] [2021-10-28 23:58:34,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905984227] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:34,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:34,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:58:34,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083963157] [2021-10-28 23:58:34,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:58:34,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:34,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:58:34,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:58:34,847 INFO L87 Difference]: Start difference. First operand 704 states and 909 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-10-28 23:58:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:36,179 INFO L93 Difference]: Finished difference Result 772 states and 1012 transitions. [2021-10-28 23:58:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:58:36,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 66 [2021-10-28 23:58:36,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:36,182 INFO L225 Difference]: With dead ends: 772 [2021-10-28 23:58:36,183 INFO L226 Difference]: Without dead ends: 772 [2021-10-28 23:58:36,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:58:36,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2021-10-28 23:58:36,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 704. [2021-10-28 23:58:36,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 558 states have (on average 1.2956989247311828) internal successors, (723), 573 states have internal predecessors, (723), 81 states have call successors, (81), 48 states have call predecessors, (81), 64 states have return successors, (102), 89 states have call predecessors, (102), 75 states have call successors, (102) [2021-10-28 23:58:36,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 906 transitions. [2021-10-28 23:58:36,200 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 906 transitions. Word has length 66 [2021-10-28 23:58:36,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:36,201 INFO L470 AbstractCegarLoop]: Abstraction has 704 states and 906 transitions. [2021-10-28 23:58:36,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-10-28 23:58:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 906 transitions. [2021-10-28 23:58:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 23:58:36,204 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:36,204 INFO L513 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] [2021-10-28 23:58:36,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-28 23:58:36,204 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:36,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1167771296, now seen corresponding path program 1 times [2021-10-28 23:58:36,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:36,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708617537] [2021-10-28 23:58:36,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:36,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:58:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:58:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:36,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:36,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708617537] [2021-10-28 23:58:36,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708617537] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:36,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:36,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:58:36,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941813792] [2021-10-28 23:58:36,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:58:36,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:36,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:58:36,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:58:36,501 INFO L87 Difference]: Start difference. First operand 704 states and 906 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:58:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:38,348 INFO L93 Difference]: Finished difference Result 796 states and 1044 transitions. [2021-10-28 23:58:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:58:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2021-10-28 23:58:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:38,351 INFO L225 Difference]: With dead ends: 796 [2021-10-28 23:58:38,351 INFO L226 Difference]: Without dead ends: 796 [2021-10-28 23:58:38,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:58:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2021-10-28 23:58:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 710. [2021-10-28 23:58:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 563 states have (on average 1.2948490230905862) internal successors, (729), 578 states have internal predecessors, (729), 82 states have call successors, (82), 48 states have call predecessors, (82), 64 states have return successors, (103), 90 states have call predecessors, (103), 76 states have call successors, (103) [2021-10-28 23:58:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 914 transitions. [2021-10-28 23:58:38,367 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 914 transitions. Word has length 65 [2021-10-28 23:58:38,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:38,367 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 914 transitions. [2021-10-28 23:58:38,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:58:38,368 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 914 transitions. [2021-10-28 23:58:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 23:58:38,370 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:38,370 INFO L513 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] [2021-10-28 23:58:38,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-28 23:58:38,371 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:38,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:38,371 INFO L85 PathProgramCache]: Analyzing trace with hash -788931073, now seen corresponding path program 1 times [2021-10-28 23:58:38,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:38,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953545460] [2021-10-28 23:58:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:38,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-10-28 23:58:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:38,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:38,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953545460] [2021-10-28 23:58:38,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953545460] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:38,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:38,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 23:58:38,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037804056] [2021-10-28 23:58:38,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:58:38,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:38,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:58:38,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:58:38,730 INFO L87 Difference]: Start difference. First operand 710 states and 914 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:41,654 INFO L93 Difference]: Finished difference Result 813 states and 1062 transitions. [2021-10-28 23:58:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:58:41,654 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-10-28 23:58:41,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:41,656 INFO L225 Difference]: With dead ends: 813 [2021-10-28 23:58:41,656 INFO L226 Difference]: Without dead ends: 739 [2021-10-28 23:58:41,656 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:58:41,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-10-28 23:58:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 683. [2021-10-28 23:58:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 541 states have (on average 1.2809611829944547) internal successors, (693), 556 states have internal predecessors, (693), 77 states have call successors, (77), 48 states have call predecessors, (77), 64 states have return successors, (97), 85 states have call predecessors, (97), 71 states have call successors, (97) [2021-10-28 23:58:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 867 transitions. [2021-10-28 23:58:41,671 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 867 transitions. Word has length 66 [2021-10-28 23:58:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:41,671 INFO L470 AbstractCegarLoop]: Abstraction has 683 states and 867 transitions. [2021-10-28 23:58:41,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 867 transitions. [2021-10-28 23:58:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 23:58:41,674 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:41,674 INFO L513 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] [2021-10-28 23:58:41,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-28 23:58:41,675 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1490530947, now seen corresponding path program 1 times [2021-10-28 23:58:41,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:41,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799503266] [2021-10-28 23:58:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:41,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:42,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-10-28 23:58:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:42,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:42,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799503266] [2021-10-28 23:58:42,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799503266] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:42,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:42,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:58:42,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785942381] [2021-10-28 23:58:42,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:58:42,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:42,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:58:42,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:58:42,026 INFO L87 Difference]: Start difference. First operand 683 states and 867 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:43,631 INFO L93 Difference]: Finished difference Result 726 states and 932 transitions. [2021-10-28 23:58:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:58:43,631 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-10-28 23:58:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:43,633 INFO L225 Difference]: With dead ends: 726 [2021-10-28 23:58:43,633 INFO L226 Difference]: Without dead ends: 726 [2021-10-28 23:58:43,633 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:58:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-10-28 23:58:43,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 673. [2021-10-28 23:58:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 533 states have (on average 1.277673545966229) internal successors, (681), 548 states have internal predecessors, (681), 75 states have call successors, (75), 48 states have call predecessors, (75), 64 states have return successors, (95), 83 states have call predecessors, (95), 69 states have call successors, (95) [2021-10-28 23:58:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 851 transitions. [2021-10-28 23:58:43,644 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 851 transitions. Word has length 66 [2021-10-28 23:58:43,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:43,644 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 851 transitions. [2021-10-28 23:58:43,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:43,645 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 851 transitions. [2021-10-28 23:58:43,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 23:58:43,647 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:43,647 INFO L513 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] [2021-10-28 23:58:43,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-28 23:58:43,648 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:43,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:43,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1087637683, now seen corresponding path program 1 times [2021-10-28 23:58:43,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:43,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342680369] [2021-10-28 23:58:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:43,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-10-28 23:58:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:43,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:43,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342680369] [2021-10-28 23:58:43,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342680369] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:43,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:43,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:58:43,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483074868] [2021-10-28 23:58:43,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:58:43,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:43,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:58:43,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:58:43,945 INFO L87 Difference]: Start difference. First operand 673 states and 851 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:45,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:45,599 INFO L93 Difference]: Finished difference Result 722 states and 926 transitions. [2021-10-28 23:58:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:58:45,599 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2021-10-28 23:58:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:45,601 INFO L225 Difference]: With dead ends: 722 [2021-10-28 23:58:45,601 INFO L226 Difference]: Without dead ends: 717 [2021-10-28 23:58:45,601 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:58:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-10-28 23:58:45,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 668. [2021-10-28 23:58:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 529 states have (on average 1.277882797731569) internal successors, (676), 544 states have internal predecessors, (676), 74 states have call successors, (74), 48 states have call predecessors, (74), 64 states have return successors, (94), 82 states have call predecessors, (94), 68 states have call successors, (94) [2021-10-28 23:58:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 844 transitions. [2021-10-28 23:58:45,616 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 844 transitions. Word has length 67 [2021-10-28 23:58:45,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:45,616 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 844 transitions. [2021-10-28 23:58:45,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 844 transitions. [2021-10-28 23:58:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 23:58:45,619 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:45,619 INFO L513 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] [2021-10-28 23:58:45,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-28 23:58:45,620 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1213196842, now seen corresponding path program 1 times [2021-10-28 23:58:45,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:45,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953756912] [2021-10-28 23:58:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:45,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:45,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:45,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953756912] [2021-10-28 23:58:45,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953756912] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:45,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:45,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:58:45,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314480190] [2021-10-28 23:58:45,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:58:45,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:58:45,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:58:45,923 INFO L87 Difference]: Start difference. First operand 668 states and 844 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:47,861 INFO L93 Difference]: Finished difference Result 823 states and 1052 transitions. [2021-10-28 23:58:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:58:47,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2021-10-28 23:58:47,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:47,866 INFO L225 Difference]: With dead ends: 823 [2021-10-28 23:58:47,866 INFO L226 Difference]: Without dead ends: 823 [2021-10-28 23:58:47,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:58:47,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-10-28 23:58:47,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 714. [2021-10-28 23:58:47,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 565 states have (on average 1.2707964601769912) internal successors, (718), 582 states have internal predecessors, (718), 76 states have call successors, (76), 50 states have call predecessors, (76), 72 states have return successors, (102), 90 states have call predecessors, (102), 70 states have call successors, (102) [2021-10-28 23:58:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 896 transitions. [2021-10-28 23:58:47,884 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 896 transitions. Word has length 67 [2021-10-28 23:58:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:47,884 INFO L470 AbstractCegarLoop]: Abstraction has 714 states and 896 transitions. [2021-10-28 23:58:47,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:58:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 896 transitions. [2021-10-28 23:58:47,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 23:58:47,887 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:47,888 INFO L513 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] [2021-10-28 23:58:47,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-28 23:58:47,888 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash -601739544, now seen corresponding path program 1 times [2021-10-28 23:58:47,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:47,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089582390] [2021-10-28 23:58:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:47,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:48,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:48,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089582390] [2021-10-28 23:58:48,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089582390] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:48,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:48,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:58:48,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560134888] [2021-10-28 23:58:48,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:58:48,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:48,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:58:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:58:48,217 INFO L87 Difference]: Start difference. First operand 714 states and 896 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:50,171 INFO L93 Difference]: Finished difference Result 820 states and 1046 transitions. [2021-10-28 23:58:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:58:50,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2021-10-28 23:58:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:50,173 INFO L225 Difference]: With dead ends: 820 [2021-10-28 23:58:50,173 INFO L226 Difference]: Without dead ends: 820 [2021-10-28 23:58:50,173 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:58:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2021-10-28 23:58:50,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 714. [2021-10-28 23:58:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 565 states have (on average 1.2672566371681415) internal successors, (716), 582 states have internal predecessors, (716), 76 states have call successors, (76), 50 states have call predecessors, (76), 72 states have return successors, (102), 90 states have call predecessors, (102), 70 states have call successors, (102) [2021-10-28 23:58:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 894 transitions. [2021-10-28 23:58:50,185 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 894 transitions. Word has length 68 [2021-10-28 23:58:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:50,185 INFO L470 AbstractCegarLoop]: Abstraction has 714 states and 894 transitions. [2021-10-28 23:58:50,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 894 transitions. [2021-10-28 23:58:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 23:58:50,188 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:50,188 INFO L513 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] [2021-10-28 23:58:50,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-28 23:58:50,189 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:50,189 INFO L85 PathProgramCache]: Analyzing trace with hash -151974564, now seen corresponding path program 1 times [2021-10-28 23:58:50,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:50,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671998221] [2021-10-28 23:58:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:50,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:58:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:58:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-10-28 23:58:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:50,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:50,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671998221] [2021-10-28 23:58:50,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671998221] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:50,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:50,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-10-28 23:58:50,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600955032] [2021-10-28 23:58:50,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:58:50,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:50,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:58:50,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:58:50,660 INFO L87 Difference]: Start difference. First operand 714 states and 894 transitions. Second operand has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:58:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:53,795 INFO L93 Difference]: Finished difference Result 784 states and 993 transitions. [2021-10-28 23:58:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:58:53,796 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2021-10-28 23:58:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:53,798 INFO L225 Difference]: With dead ends: 784 [2021-10-28 23:58:53,798 INFO L226 Difference]: Without dead ends: 759 [2021-10-28 23:58:53,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 23:58:53,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2021-10-28 23:58:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 710. [2021-10-28 23:58:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 562 states have (on average 1.2669039145907472) internal successors, (712), 579 states have internal predecessors, (712), 75 states have call successors, (75), 50 states have call predecessors, (75), 72 states have return successors, (101), 89 states have call predecessors, (101), 69 states have call successors, (101) [2021-10-28 23:58:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 888 transitions. [2021-10-28 23:58:53,812 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 888 transitions. Word has length 70 [2021-10-28 23:58:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:53,812 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 888 transitions. [2021-10-28 23:58:53,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:58:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 888 transitions. [2021-10-28 23:58:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 23:58:53,816 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:53,817 INFO L513 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] [2021-10-28 23:58:53,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-28 23:58:53,817 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:53,818 INFO L85 PathProgramCache]: Analyzing trace with hash -836181127, now seen corresponding path program 1 times [2021-10-28 23:58:53,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:53,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362014019] [2021-10-28 23:58:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:53,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:53,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:54,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 23:58:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:58:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:54,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:54,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362014019] [2021-10-28 23:58:54,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362014019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:54,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:54,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-28 23:58:54,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739017452] [2021-10-28 23:58:54,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:58:54,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:54,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:58:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:58:54,249 INFO L87 Difference]: Start difference. First operand 710 states and 888 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:56,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:56,475 INFO L93 Difference]: Finished difference Result 783 states and 991 transitions. [2021-10-28 23:58:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:58:56,476 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-10-28 23:58:56,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:56,477 INFO L225 Difference]: With dead ends: 783 [2021-10-28 23:58:56,478 INFO L226 Difference]: Without dead ends: 756 [2021-10-28 23:58:56,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:58:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-10-28 23:58:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 707. [2021-10-28 23:58:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 560 states have (on average 1.2660714285714285) internal successors, (709), 577 states have internal predecessors, (709), 74 states have call successors, (74), 50 states have call predecessors, (74), 72 states have return successors, (100), 88 states have call predecessors, (100), 68 states have call successors, (100) [2021-10-28 23:58:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 883 transitions. [2021-10-28 23:58:56,492 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 883 transitions. Word has length 69 [2021-10-28 23:58:56,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:56,492 INFO L470 AbstractCegarLoop]: Abstraction has 707 states and 883 transitions. [2021-10-28 23:58:56,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:56,493 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 883 transitions. [2021-10-28 23:58:56,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 23:58:56,495 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:56,495 INFO L513 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] [2021-10-28 23:58:56,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-28 23:58:56,496 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:56,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:56,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1918393902, now seen corresponding path program 1 times [2021-10-28 23:58:56,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:56,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270854633] [2021-10-28 23:58:56,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:56,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:58:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:58:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:56,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:56,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270854633] [2021-10-28 23:58:56,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270854633] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:56,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:56,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:58:56,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552724851] [2021-10-28 23:58:56,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:58:56,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:56,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:58:56,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:58:56,793 INFO L87 Difference]: Start difference. First operand 707 states and 883 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:59,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:59,150 INFO L93 Difference]: Finished difference Result 756 states and 958 transitions. [2021-10-28 23:58:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:58:59,151 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-10-28 23:58:59,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:58:59,152 INFO L225 Difference]: With dead ends: 756 [2021-10-28 23:58:59,152 INFO L226 Difference]: Without dead ends: 751 [2021-10-28 23:58:59,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:58:59,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-10-28 23:58:59,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 702. [2021-10-28 23:58:59,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 556 states have (on average 1.2661870503597121) internal successors, (704), 573 states have internal predecessors, (704), 73 states have call successors, (73), 50 states have call predecessors, (73), 72 states have return successors, (99), 87 states have call predecessors, (99), 67 states have call successors, (99) [2021-10-28 23:58:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 876 transitions. [2021-10-28 23:58:59,167 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 876 transitions. Word has length 69 [2021-10-28 23:58:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:58:59,167 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 876 transitions. [2021-10-28 23:58:59,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:58:59,168 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 876 transitions. [2021-10-28 23:58:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 23:58:59,170 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:58:59,170 INFO L513 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] [2021-10-28 23:58:59,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-10-28 23:58:59,170 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:58:59,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:59,171 INFO L85 PathProgramCache]: Analyzing trace with hash -2114383891, now seen corresponding path program 1 times [2021-10-28 23:58:59,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:59,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094700271] [2021-10-28 23:58:59,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:59,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:58:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:58:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:58:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:58:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:58:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:58:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:59,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:59,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094700271] [2021-10-28 23:58:59,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094700271] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:59,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:59,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-28 23:58:59,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478874199] [2021-10-28 23:58:59,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:58:59,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:59,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:58:59,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:58:59,677 INFO L87 Difference]: Start difference. First operand 702 states and 876 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:02,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:02,306 INFO L93 Difference]: Finished difference Result 758 states and 958 transitions. [2021-10-28 23:59:02,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:59:02,307 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2021-10-28 23:59:02,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:02,310 INFO L225 Difference]: With dead ends: 758 [2021-10-28 23:59:02,310 INFO L226 Difference]: Without dead ends: 755 [2021-10-28 23:59:02,310 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:59:02,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2021-10-28 23:59:02,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 699. [2021-10-28 23:59:02,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 553 states have (on average 1.2603978300180831) internal successors, (697), 570 states have internal predecessors, (697), 73 states have call successors, (73), 50 states have call predecessors, (73), 72 states have return successors, (99), 87 states have call predecessors, (99), 67 states have call successors, (99) [2021-10-28 23:59:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 869 transitions. [2021-10-28 23:59:02,327 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 869 transitions. Word has length 69 [2021-10-28 23:59:02,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:02,327 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 869 transitions. [2021-10-28 23:59:02,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:02,328 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 869 transitions. [2021-10-28 23:59:02,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 23:59:02,330 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:02,331 INFO L513 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] [2021-10-28 23:59:02,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-28 23:59:02,331 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:02,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2114660721, now seen corresponding path program 1 times [2021-10-28 23:59:02,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:02,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192782399] [2021-10-28 23:59:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:02,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:02,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:02,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192782399] [2021-10-28 23:59:02,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192782399] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:02,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:02,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:59:02,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162171852] [2021-10-28 23:59:02,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:59:02,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:02,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:59:02,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:59:02,690 INFO L87 Difference]: Start difference. First operand 699 states and 869 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:59:05,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:05,210 INFO L93 Difference]: Finished difference Result 806 states and 1021 transitions. [2021-10-28 23:59:05,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:59:05,211 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-10-28 23:59:05,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:05,212 INFO L225 Difference]: With dead ends: 806 [2021-10-28 23:59:05,212 INFO L226 Difference]: Without dead ends: 775 [2021-10-28 23:59:05,212 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:59:05,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-10-28 23:59:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 670. [2021-10-28 23:59:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 529 states have (on average 1.2589792060491494) internal successors, (666), 545 states have internal predecessors, (666), 72 states have call successors, (72), 49 states have call predecessors, (72), 68 states have return successors, (95), 83 states have call predecessors, (95), 66 states have call successors, (95) [2021-10-28 23:59:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 833 transitions. [2021-10-28 23:59:05,225 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 833 transitions. Word has length 69 [2021-10-28 23:59:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:05,225 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 833 transitions. [2021-10-28 23:59:05,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:59:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 833 transitions. [2021-10-28 23:59:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 23:59:05,227 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:05,227 INFO L513 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] [2021-10-28 23:59:05,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-10-28 23:59:05,227 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:05,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1980103703, now seen corresponding path program 1 times [2021-10-28 23:59:05,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:05,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975259866] [2021-10-28 23:59:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:05,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:05,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:05,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975259866] [2021-10-28 23:59:05,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975259866] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:05,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:05,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:59:05,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392534632] [2021-10-28 23:59:05,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:59:05,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:59:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:59:05,490 INFO L87 Difference]: Start difference. First operand 670 states and 833 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:06,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:06,876 INFO L93 Difference]: Finished difference Result 722 states and 905 transitions. [2021-10-28 23:59:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:59:06,877 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2021-10-28 23:59:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:06,878 INFO L225 Difference]: With dead ends: 722 [2021-10-28 23:59:06,878 INFO L226 Difference]: Without dead ends: 705 [2021-10-28 23:59:06,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:59:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-10-28 23:59:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 652. [2021-10-28 23:59:06,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 516 states have (on average 1.251937984496124) internal successors, (646), 531 states have internal predecessors, (646), 71 states have call successors, (71), 48 states have call predecessors, (71), 64 states have return successors, (91), 79 states have call predecessors, (91), 65 states have call successors, (91) [2021-10-28 23:59:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 808 transitions. [2021-10-28 23:59:06,891 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 808 transitions. Word has length 69 [2021-10-28 23:59:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:06,892 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 808 transitions. [2021-10-28 23:59:06,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 808 transitions. [2021-10-28 23:59:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 23:59:06,894 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:06,895 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:06,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-10-28 23:59:06,895 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:06,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2137250320, now seen corresponding path program 1 times [2021-10-28 23:59:06,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:06,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219548628] [2021-10-28 23:59:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:06,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:59:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-10-28 23:59:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:07,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:07,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219548628] [2021-10-28 23:59:07,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219548628] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:07,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:07,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 23:59:07,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658655391] [2021-10-28 23:59:07,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:59:07,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:59:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:59:07,420 INFO L87 Difference]: Start difference. First operand 652 states and 808 transitions. Second operand has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 23:59:10,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:10,204 INFO L93 Difference]: Finished difference Result 738 states and 932 transitions. [2021-10-28 23:59:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:59:10,205 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2021-10-28 23:59:10,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:10,206 INFO L225 Difference]: With dead ends: 738 [2021-10-28 23:59:10,206 INFO L226 Difference]: Without dead ends: 716 [2021-10-28 23:59:10,207 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:59:10,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-28 23:59:10,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 650. [2021-10-28 23:59:10,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 515 states have (on average 1.250485436893204) internal successors, (644), 530 states have internal predecessors, (644), 70 states have call successors, (70), 48 states have call predecessors, (70), 64 states have return successors, (90), 78 states have call predecessors, (90), 64 states have call successors, (90) [2021-10-28 23:59:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 804 transitions. [2021-10-28 23:59:10,220 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 804 transitions. Word has length 74 [2021-10-28 23:59:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:10,220 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 804 transitions. [2021-10-28 23:59:10,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 23:59:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 804 transitions. [2021-10-28 23:59:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 23:59:10,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:10,223 INFO L513 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] [2021-10-28 23:59:10,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-10-28 23:59:10,223 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:10,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:10,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1031688052, now seen corresponding path program 1 times [2021-10-28 23:59:10,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:10,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334352756] [2021-10-28 23:59:10,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:10,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:59:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:59:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:10,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:10,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:10,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334352756] [2021-10-28 23:59:10,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334352756] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:10,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:10,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:59:10,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043597357] [2021-10-28 23:59:10,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:59:10,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:10,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:59:10,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:59:10,589 INFO L87 Difference]: Start difference. First operand 650 states and 804 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:59:12,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:12,097 INFO L93 Difference]: Finished difference Result 702 states and 881 transitions. [2021-10-28 23:59:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:59:12,098 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2021-10-28 23:59:12,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:12,099 INFO L225 Difference]: With dead ends: 702 [2021-10-28 23:59:12,099 INFO L226 Difference]: Without dead ends: 702 [2021-10-28 23:59:12,100 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:59:12,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-10-28 23:59:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 650. [2021-10-28 23:59:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 515 states have (on average 1.2485436893203883) internal successors, (643), 530 states have internal predecessors, (643), 70 states have call successors, (70), 48 states have call predecessors, (70), 64 states have return successors, (90), 78 states have call predecessors, (90), 64 states have call successors, (90) [2021-10-28 23:59:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 803 transitions. [2021-10-28 23:59:12,119 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 803 transitions. Word has length 71 [2021-10-28 23:59:12,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:12,119 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 803 transitions. [2021-10-28 23:59:12,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:59:12,119 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 803 transitions. [2021-10-28 23:59:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 23:59:12,121 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:12,121 INFO L513 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] [2021-10-28 23:59:12,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-10-28 23:59:12,121 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1212295246, now seen corresponding path program 1 times [2021-10-28 23:59:12,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:12,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170042564] [2021-10-28 23:59:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:12,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:59:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:59:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:12,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:12,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170042564] [2021-10-28 23:59:12,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170042564] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:12,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:12,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 23:59:12,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691215781] [2021-10-28 23:59:12,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:59:12,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:12,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:59:12,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:59:12,619 INFO L87 Difference]: Start difference. First operand 650 states and 803 transitions. Second operand has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:59:15,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:15,249 INFO L93 Difference]: Finished difference Result 735 states and 924 transitions. [2021-10-28 23:59:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:59:15,250 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2021-10-28 23:59:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:15,251 INFO L225 Difference]: With dead ends: 735 [2021-10-28 23:59:15,251 INFO L226 Difference]: Without dead ends: 700 [2021-10-28 23:59:15,251 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:59:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-28 23:59:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 645. [2021-10-28 23:59:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 511 states have (on average 1.2446183953033267) internal successors, (636), 526 states have internal predecessors, (636), 69 states have call successors, (69), 48 states have call predecessors, (69), 64 states have return successors, (88), 77 states have call predecessors, (88), 63 states have call successors, (88) [2021-10-28 23:59:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 793 transitions. [2021-10-28 23:59:15,260 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 793 transitions. Word has length 71 [2021-10-28 23:59:15,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:15,260 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 793 transitions. [2021-10-28 23:59:15,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 23:59:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 793 transitions. [2021-10-28 23:59:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 23:59:15,262 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:15,262 INFO L513 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] [2021-10-28 23:59:15,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-10-28 23:59:15,262 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:15,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1255722987, now seen corresponding path program 1 times [2021-10-28 23:59:15,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:15,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929426458] [2021-10-28 23:59:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:15,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 23:59:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:59:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:15,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:15,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929426458] [2021-10-28 23:59:15,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929426458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:15,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:15,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:59:15,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649153242] [2021-10-28 23:59:15,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:59:15,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:15,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:59:15,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:59:15,609 INFO L87 Difference]: Start difference. First operand 645 states and 793 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:59:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:17,080 INFO L93 Difference]: Finished difference Result 695 states and 867 transitions. [2021-10-28 23:59:17,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:59:17,080 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2021-10-28 23:59:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:17,082 INFO L225 Difference]: With dead ends: 695 [2021-10-28 23:59:17,082 INFO L226 Difference]: Without dead ends: 689 [2021-10-28 23:59:17,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:59:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2021-10-28 23:59:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 639. [2021-10-28 23:59:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 506 states have (on average 1.2450592885375493) internal successors, (630), 521 states have internal predecessors, (630), 68 states have call successors, (68), 48 states have call predecessors, (68), 64 states have return successors, (87), 76 states have call predecessors, (87), 62 states have call successors, (87) [2021-10-28 23:59:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 785 transitions. [2021-10-28 23:59:17,092 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 785 transitions. Word has length 71 [2021-10-28 23:59:17,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:17,093 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 785 transitions. [2021-10-28 23:59:17,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:59:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 785 transitions. [2021-10-28 23:59:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-28 23:59:17,094 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:17,095 INFO L513 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] [2021-10-28 23:59:17,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-10-28 23:59:17,095 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:17,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:17,096 INFO L85 PathProgramCache]: Analyzing trace with hash 110398293, now seen corresponding path program 1 times [2021-10-28 23:59:17,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:17,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51941797] [2021-10-28 23:59:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:17,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:17,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:17,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51941797] [2021-10-28 23:59:17,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51941797] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:17,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:17,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-28 23:59:17,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386988177] [2021-10-28 23:59:17,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:59:17,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:17,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:59:17,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:59:17,618 INFO L87 Difference]: Start difference. First operand 639 states and 785 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:20,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:20,481 INFO L93 Difference]: Finished difference Result 756 states and 933 transitions. [2021-10-28 23:59:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:59:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-10-28 23:59:20,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:20,483 INFO L225 Difference]: With dead ends: 756 [2021-10-28 23:59:20,483 INFO L226 Difference]: Without dead ends: 731 [2021-10-28 23:59:20,483 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:59:20,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-10-28 23:59:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 645. [2021-10-28 23:59:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 512 states have (on average 1.234375) internal successors, (632), 527 states have internal predecessors, (632), 68 states have call successors, (68), 48 states have call predecessors, (68), 64 states have return successors, (87), 76 states have call predecessors, (87), 62 states have call successors, (87) [2021-10-28 23:59:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 787 transitions. [2021-10-28 23:59:20,492 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 787 transitions. Word has length 71 [2021-10-28 23:59:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:20,493 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 787 transitions. [2021-10-28 23:59:20,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 787 transitions. [2021-10-28 23:59:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-28 23:59:20,494 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:20,494 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:20,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-10-28 23:59:20,495 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash -955000686, now seen corresponding path program 1 times [2021-10-28 23:59:20,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:20,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433543815] [2021-10-28 23:59:20,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:20,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:59:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-10-28 23:59:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:21,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:21,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:21,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433543815] [2021-10-28 23:59:21,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433543815] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:21,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:21,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-28 23:59:21,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367395517] [2021-10-28 23:59:21,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:59:21,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:21,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:59:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:59:21,067 INFO L87 Difference]: Start difference. First operand 645 states and 787 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 23:59:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:23,652 INFO L93 Difference]: Finished difference Result 717 states and 887 transitions. [2021-10-28 23:59:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:59:23,652 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2021-10-28 23:59:23,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:23,654 INFO L225 Difference]: With dead ends: 717 [2021-10-28 23:59:23,655 INFO L226 Difference]: Without dead ends: 691 [2021-10-28 23:59:23,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:59:23,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-10-28 23:59:23,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 643. [2021-10-28 23:59:23,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 510 states have (on average 1.2333333333333334) internal successors, (629), 525 states have internal predecessors, (629), 68 states have call successors, (68), 48 states have call predecessors, (68), 64 states have return successors, (87), 76 states have call predecessors, (87), 62 states have call successors, (87) [2021-10-28 23:59:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 784 transitions. [2021-10-28 23:59:23,670 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 784 transitions. Word has length 77 [2021-10-28 23:59:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:23,670 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 784 transitions. [2021-10-28 23:59:23,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 23:59:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 784 transitions. [2021-10-28 23:59:23,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:59:23,673 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:23,674 INFO L513 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] [2021-10-28 23:59:23,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-10-28 23:59:23,674 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:23,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,675 INFO L85 PathProgramCache]: Analyzing trace with hash -111129446, now seen corresponding path program 1 times [2021-10-28 23:59:23,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:23,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834679617] [2021-10-28 23:59:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:23,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-10-28 23:59:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:24,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:24,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834679617] [2021-10-28 23:59:24,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834679617] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:24,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:24,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:59:24,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467800102] [2021-10-28 23:59:24,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:59:24,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:24,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:59:24,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:59:24,042 INFO L87 Difference]: Start difference. First operand 643 states and 784 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:59:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:25,694 INFO L93 Difference]: Finished difference Result 690 states and 853 transitions. [2021-10-28 23:59:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:59:25,695 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2021-10-28 23:59:25,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:25,696 INFO L225 Difference]: With dead ends: 690 [2021-10-28 23:59:25,697 INFO L226 Difference]: Without dead ends: 679 [2021-10-28 23:59:25,697 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:59:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2021-10-28 23:59:25,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 631. [2021-10-28 23:59:25,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 499 states have (on average 1.2284569138276553) internal successors, (613), 514 states have internal predecessors, (613), 67 states have call successors, (67), 48 states have call predecessors, (67), 64 states have return successors, (86), 75 states have call predecessors, (86), 61 states have call successors, (86) [2021-10-28 23:59:25,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 766 transitions. [2021-10-28 23:59:25,706 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 766 transitions. Word has length 73 [2021-10-28 23:59:25,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:25,706 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 766 transitions. [2021-10-28 23:59:25,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:59:25,706 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 766 transitions. [2021-10-28 23:59:25,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 23:59:25,708 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:25,708 INFO L513 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] [2021-10-28 23:59:25,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-10-28 23:59:25,709 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:25,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2040120255, now seen corresponding path program 1 times [2021-10-28 23:59:25,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932942298] [2021-10-28 23:59:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 23:59:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:26,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:26,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932942298] [2021-10-28 23:59:26,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932942298] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:26,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:26,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 23:59:26,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260787423] [2021-10-28 23:59:26,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:59:26,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:26,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:59:26,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:59:26,197 INFO L87 Difference]: Start difference. First operand 631 states and 766 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:28,710 INFO L93 Difference]: Finished difference Result 696 states and 856 transitions. [2021-10-28 23:59:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:59:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2021-10-28 23:59:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:28,713 INFO L225 Difference]: With dead ends: 696 [2021-10-28 23:59:28,713 INFO L226 Difference]: Without dead ends: 677 [2021-10-28 23:59:28,714 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:59:28,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-10-28 23:59:28,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 629. [2021-10-28 23:59:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 498 states have (on average 1.2269076305220883) internal successors, (611), 513 states have internal predecessors, (611), 66 states have call successors, (66), 48 states have call predecessors, (66), 64 states have return successors, (85), 74 states have call predecessors, (85), 60 states have call successors, (85) [2021-10-28 23:59:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 762 transitions. [2021-10-28 23:59:28,753 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 762 transitions. Word has length 72 [2021-10-28 23:59:28,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:28,753 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 762 transitions. [2021-10-28 23:59:28,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 23:59:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 762 transitions. [2021-10-28 23:59:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:59:28,755 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:28,755 INFO L513 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] [2021-10-28 23:59:28,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-10-28 23:59:28,756 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1909315756, now seen corresponding path program 1 times [2021-10-28 23:59:28,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:28,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107301276] [2021-10-28 23:59:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:28,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:28,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 23:59:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:29,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:29,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107301276] [2021-10-28 23:59:29,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107301276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:29,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:29,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-28 23:59:29,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321895934] [2021-10-28 23:59:29,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:59:29,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:59:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:59:29,284 INFO L87 Difference]: Start difference. First operand 629 states and 762 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 23:59:34,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:34,642 INFO L93 Difference]: Finished difference Result 1384 states and 1695 transitions. [2021-10-28 23:59:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-28 23:59:34,642 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2021-10-28 23:59:34,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:34,644 INFO L225 Difference]: With dead ends: 1384 [2021-10-28 23:59:34,645 INFO L226 Difference]: Without dead ends: 1377 [2021-10-28 23:59:34,645 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=676, Invalid=2630, Unknown=0, NotChecked=0, Total=3306 [2021-10-28 23:59:34,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2021-10-28 23:59:34,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1004. [2021-10-28 23:59:34,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 799 states have (on average 1.2453066332916145) internal successors, (995), 824 states have internal predecessors, (995), 101 states have call successors, (101), 79 states have call predecessors, (101), 103 states have return successors, (136), 107 states have call predecessors, (136), 95 states have call successors, (136) [2021-10-28 23:59:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1232 transitions. [2021-10-28 23:59:34,662 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1232 transitions. Word has length 73 [2021-10-28 23:59:34,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:34,662 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 1232 transitions. [2021-10-28 23:59:34,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 23:59:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1232 transitions. [2021-10-28 23:59:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:59:34,664 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:34,665 INFO L513 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] [2021-10-28 23:59:34,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-10-28 23:59:34,665 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:34,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1706379286, now seen corresponding path program 1 times [2021-10-28 23:59:34,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:34,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41632933] [2021-10-28 23:59:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:34,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 23:59:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 23:59:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:34,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:34,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41632933] [2021-10-28 23:59:34,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41632933] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:34,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:34,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 23:59:34,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767805010] [2021-10-28 23:59:34,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:59:34,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:59:34,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:59:34,959 INFO L87 Difference]: Start difference. First operand 1004 states and 1232 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 23:59:38,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:38,043 INFO L93 Difference]: Finished difference Result 1267 states and 1563 transitions. [2021-10-28 23:59:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:59:38,044 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2021-10-28 23:59:38,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:38,046 INFO L225 Difference]: With dead ends: 1267 [2021-10-28 23:59:38,047 INFO L226 Difference]: Without dead ends: 1267 [2021-10-28 23:59:38,047 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:59:38,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2021-10-28 23:59:38,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1095. [2021-10-28 23:59:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 870 states have (on average 1.2344827586206897) internal successors, (1074), 890 states have internal predecessors, (1074), 115 states have call successors, (115), 83 states have call predecessors, (115), 109 states have return successors, (152), 126 states have call predecessors, (152), 109 states have call successors, (152) [2021-10-28 23:59:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1341 transitions. [2021-10-28 23:59:38,081 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1341 transitions. Word has length 73 [2021-10-28 23:59:38,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:38,081 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 1341 transitions. [2021-10-28 23:59:38,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 23:59:38,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1341 transitions. [2021-10-28 23:59:38,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-28 23:59:38,083 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:38,084 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:38,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-10-28 23:59:38,084 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash -513989019, now seen corresponding path program 1 times [2021-10-28 23:59:38,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:38,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472014946] [2021-10-28 23:59:38,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:38,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 23:59:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-10-28 23:59:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:38,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:38,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:38,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472014946] [2021-10-28 23:59:38,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472014946] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:38,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:38,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:59:38,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858849385] [2021-10-28 23:59:38,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:59:38,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:38,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:59:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:59:38,430 INFO L87 Difference]: Start difference. First operand 1095 states and 1341 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 23:59:39,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:39,864 INFO L93 Difference]: Finished difference Result 1161 states and 1431 transitions. [2021-10-28 23:59:39,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:59:39,864 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2021-10-28 23:59:39,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:39,866 INFO L225 Difference]: With dead ends: 1161 [2021-10-28 23:59:39,866 INFO L226 Difference]: Without dead ends: 1131 [2021-10-28 23:59:39,867 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:59:39,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2021-10-28 23:59:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1061. [2021-10-28 23:59:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 842 states have (on average 1.2304038004750595) internal successors, (1036), 862 states have internal predecessors, (1036), 109 states have call successors, (109), 83 states have call predecessors, (109), 109 states have return successors, (144), 120 states have call predecessors, (144), 103 states have call successors, (144) [2021-10-28 23:59:39,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1289 transitions. [2021-10-28 23:59:39,882 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1289 transitions. Word has length 78 [2021-10-28 23:59:39,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:39,882 INFO L470 AbstractCegarLoop]: Abstraction has 1061 states and 1289 transitions. [2021-10-28 23:59:39,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 23:59:39,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1289 transitions. [2021-10-28 23:59:39,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-28 23:59:39,886 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:39,886 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:39,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-10-28 23:59:39,887 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:39,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:39,887 INFO L85 PathProgramCache]: Analyzing trace with hash 314197659, now seen corresponding path program 1 times [2021-10-28 23:59:39,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:39,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668254530] [2021-10-28 23:59:39,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:39,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:59:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:59:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-10-28 23:59:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:40,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:40,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:40,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668254530] [2021-10-28 23:59:40,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668254530] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:40,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:40,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-10-28 23:59:40,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920863005] [2021-10-28 23:59:40,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:59:40,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:40,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:59:40,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:59:40,313 INFO L87 Difference]: Start difference. First operand 1061 states and 1289 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 23:59:41,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:41,873 INFO L93 Difference]: Finished difference Result 1101 states and 1347 transitions. [2021-10-28 23:59:41,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:59:41,874 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2021-10-28 23:59:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:41,876 INFO L225 Difference]: With dead ends: 1101 [2021-10-28 23:59:41,876 INFO L226 Difference]: Without dead ends: 1065 [2021-10-28 23:59:41,876 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:59:41,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-10-28 23:59:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1013. [2021-10-28 23:59:41,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 808 states have (on average 1.2326732673267327) internal successors, (996), 828 states have internal predecessors, (996), 99 states have call successors, (99), 79 states have call predecessors, (99), 105 states have return successors, (132), 110 states have call predecessors, (132), 93 states have call successors, (132) [2021-10-28 23:59:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1227 transitions. [2021-10-28 23:59:41,895 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1227 transitions. Word has length 75 [2021-10-28 23:59:41,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:41,895 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1227 transitions. [2021-10-28 23:59:41,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 23:59:41,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1227 transitions. [2021-10-28 23:59:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:59:41,898 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:41,899 INFO L513 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] [2021-10-28 23:59:41,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-28 23:59:41,899 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash -901263887, now seen corresponding path program 1 times [2021-10-28 23:59:41,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:41,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314561564] [2021-10-28 23:59:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:41,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:59:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:59:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 23:59:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:59:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-28 23:59:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:59:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-10-28 23:59:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:42,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:42,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314561564] [2021-10-28 23:59:42,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314561564] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:42,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:42,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:59:42,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868844611] [2021-10-28 23:59:42,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:59:42,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:59:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:59:42,234 INFO L87 Difference]: Start difference. First operand 1013 states and 1227 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:59:43,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:43,624 INFO L93 Difference]: Finished difference Result 1061 states and 1293 transitions. [2021-10-28 23:59:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:59:43,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2021-10-28 23:59:43,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:43,632 INFO L225 Difference]: With dead ends: 1061 [2021-10-28 23:59:43,632 INFO L226 Difference]: Without dead ends: 1049 [2021-10-28 23:59:43,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:59:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2021-10-28 23:59:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 997. [2021-10-28 23:59:43,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 794 states have (on average 1.2317380352644836) internal successors, (978), 814 states have internal predecessors, (978), 97 states have call successors, (97), 79 states have call predecessors, (97), 105 states have return successors, (128), 108 states have call predecessors, (128), 91 states have call successors, (128) [2021-10-28 23:59:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1203 transitions. [2021-10-28 23:59:43,653 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1203 transitions. Word has length 73 [2021-10-28 23:59:43,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:43,653 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1203 transitions. [2021-10-28 23:59:43,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:59:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1203 transitions. [2021-10-28 23:59:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:59:43,658 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:43,658 INFO L513 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] [2021-10-28 23:59:43,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-10-28 23:59:43,659 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash -586736919, now seen corresponding path program 1 times [2021-10-28 23:59:43,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:43,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221589082] [2021-10-28 23:59:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:43,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:43,685 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:43,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:43,785 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:59:43,786 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 23:59:43,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:59:43,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-10-28 23:59:43,793 INFO L731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:43,797 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:59:43,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:59:43 BoogieIcfgContainer [2021-10-28 23:59:43,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:59:43,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:59:43,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:59:43,966 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:59:43,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:56:14" (3/4) ... [2021-10-28 23:59:43,971 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:59:43,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:59:43,973 INFO L168 Benchmark]: Toolchain (without parser) took 211725.34 ms. Allocated memory was 94.4 MB in the beginning and 343.9 MB in the end (delta: 249.6 MB). Free memory was 52.4 MB in the beginning and 142.3 MB in the end (delta: -89.9 MB). Peak memory consumption was 158.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:43,974 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:43,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.06 ms. Allocated memory is still 94.4 MB. Free memory was 52.1 MB in the beginning and 51.7 MB in the end (delta: 384.9 kB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:43,975 INFO L168 Benchmark]: Boogie Preprocessor took 176.75 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 46.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:43,975 INFO L168 Benchmark]: RCFGBuilder took 1549.12 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 46.7 MB in the beginning and 84.9 MB in the end (delta: -38.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:43,976 INFO L168 Benchmark]: TraceAbstraction took 209293.84 ms. Allocated memory was 121.6 MB in the beginning and 343.9 MB in the end (delta: 222.3 MB). Free memory was 84.4 MB in the beginning and 142.3 MB in the end (delta: -57.9 MB). Peak memory consumption was 164.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:43,976 INFO L168 Benchmark]: Witness Printer took 5.78 ms. Allocated memory is still 343.9 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:43,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 694.06 ms. Allocated memory is still 94.4 MB. Free memory was 52.1 MB in the beginning and 51.7 MB in the end (delta: 384.9 kB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 176.75 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 46.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1549.12 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 46.7 MB in the beginning and 84.9 MB in the end (delta: -38.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 209293.84 ms. Allocated memory was 121.6 MB in the beginning and 343.9 MB in the end (delta: 222.3 MB). Free memory was 84.4 MB in the beginning and 142.3 MB in the end (delta: -57.9 MB). Peak memory consumption was 164.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.78 ms. Allocated memory is still 343.9 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [\old(compFptr)=147534, \old(compRegistered)=147513, \old(customIrp)=147517, \old(DC)=147539, \old(DeviceUsageTypePaging)=147538, \old(Executive)=147536, \old(IPC)=147525, \old(KernelMode)=147521, \old(lowerDriverReturn)=147526, \old(MPR1)=147533, \old(MPR3)=147542, \old(myStatus)=147537, \old(NP)=147518, \old(pended)=147535, \old(pirp)=147540, \old(routine)=147514, \old(s)=147522, \old(setEventCalled)=147515, \old(SKIP1)=147520, \old(SKIP2)=147531, \old(Suspended)=147532, \old(UNLOADED)=147524, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=0, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=0, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1755] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=5, UNLOADED=0] [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1772] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=-5, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=-5, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioHPCdrDeviceControl(DeviceObject, Irp)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioDeviceControl(devobj, pirp)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=-4, DC=2, DeviceUsageTypePaging=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: 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 31 procedures, 521 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 209.0s, OverallIterations: 70, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 181.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 40086 SDtfs, 74287 SDslu, 98949 SDs, 0 SdLazy, 175732 SolverSat, 26276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 135.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1883 GetRequests, 769 SyntacticMatches, 2 SemanticMatches, 1112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2773 ImplicationChecksByTransitivity, 30.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1095occurred in iteration=66, InterpolantAutomatonStates: 913, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 69 MinimizatonAttempts, 8926 StatesRemovedByMinimization, 69 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 22.4s InterpolantComputationTime, 4193 NumberOfCodeBlocks, 4193 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 4050 ConstructedInterpolants, 0 QuantifiedInterpolants, 22435 SizeOfPredicates, 4 NumberOfNonLiveVariables, 871 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 70 InterpolantComputations, 68 PerfectInterpolantSequences, 5/8 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 [2021-10-28 23:59:44,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:59:47,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:59:47,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:59:47,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:59:47,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:59:47,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:59:47,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:59:47,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:59:47,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:59:47,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:59:47,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:59:47,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:59:47,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:59:47,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:59:47,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:59:47,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:59:47,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:59:47,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:59:47,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:59:47,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:59:47,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:59:47,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:59:47,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:59:47,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:59:47,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:59:47,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:59:47,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:59:47,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:59:47,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:59:47,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:59:47,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:59:47,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:59:47,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:59:47,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:59:47,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:59:47,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:59:47,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:59:47,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:59:47,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:59:47,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:59:47,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:59:47,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:59:47,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:59:47,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:59:47,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:59:47,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:59:47,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:59:47,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:59:47,462 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:59:47,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:59:47,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:59:47,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:59:47,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:59:47,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:59:47,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:59:47,464 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:59:47,465 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:59:47,465 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:59:47,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:59:47,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:59:47,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:59:47,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:59:47,466 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:59:47,467 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:59:47,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:59:47,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:59:47,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:59:47,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:47,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:59:47,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:59:47,469 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:59:47,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:59:47,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:59:47,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:59:47,470 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_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-10-28 23:59:48,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:59:48,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:59:48,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:59:48,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:59:48,053 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:59:48,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 23:59:48,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/c469a6eb8/ee35bcb945a0460cb55af54dcb26532b/FLAG33061f380 [2021-10-28 23:59:49,081 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:59:49,082 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-10-28 23:59:49,111 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/c469a6eb8/ee35bcb945a0460cb55af54dcb26532b/FLAG33061f380 [2021-10-28 23:59:49,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/data/c469a6eb8/ee35bcb945a0460cb55af54dcb26532b [2021-10-28 23:59:49,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:59:49,205 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:59:49,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:49,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:59:49,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:59:49,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:49" (1/1) ... [2021-10-28 23:59:49,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57109f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:49, skipping insertion in model container [2021-10-28 23:59:49,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:49" (1/1) ... [2021-10-28 23:59:49,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:59:49,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:49,724 WARN L228 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_b3568f47-9d9b-4255-9f42-5183a62c1860/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 23:59:50,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:50,138 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:59:50,179 WARN L228 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_b3568f47-9d9b-4255-9f42-5183a62c1860/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-10-28 23:59:50,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:50,358 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:59:50,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50 WrapperNode [2021-10-28 23:59:50,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:50,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:59:50,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:59:50,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:59:50,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:59:50,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:59:50,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:59:50,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:59:50,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (1/1) ... [2021-10-28 23:59:50,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:50,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:50,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:50,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:59:50,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:59:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:59:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:59:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-10-28 23:59:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-10-28 23:59:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-10-28 23:59:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-10-28 23:59:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2021-10-28 23:59:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2021-10-28 23:59:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2021-10-28 23:59:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-10-28 23:59:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-10-28 23:59:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2021-10-28 23:59:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-10-28 23:59:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2021-10-28 23:59:50,758 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2021-10-28 23:59:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2021-10-28 23:59:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-10-28 23:59:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2021-10-28 23:59:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-10-28 23:59:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2021-10-28 23:59:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2021-10-28 23:59:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-10-28 23:59:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:59:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-10-28 23:59:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-10-28 23:59:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-10-28 23:59:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-10-28 23:59:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-10-28 23:59:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-10-28 23:59:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-10-28 23:59:50,763 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:59:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:59:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:59:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:59:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-10-28 23:59:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:59:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-10-28 23:59:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-10-28 23:59:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-10-28 23:59:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2021-10-28 23:59:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2021-10-28 23:59:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2021-10-28 23:59:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-10-28 23:59:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-10-28 23:59:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2021-10-28 23:59:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-10-28 23:59:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2021-10-28 23:59:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2021-10-28 23:59:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-10-28 23:59:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2021-10-28 23:59:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-10-28 23:59:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2021-10-28 23:59:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-10-28 23:59:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-10-28 23:59:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-10-28 23:59:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-10-28 23:59:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-10-28 23:59:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-10-28 23:59:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-10-28 23:59:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-10-28 23:59:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2021-10-28 23:59:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2021-10-28 23:59:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-10-28 23:59:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:59:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-10-28 23:59:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:59:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:59:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:59:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 23:59:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 23:59:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:59:51,474 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:51,581 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-10-28 23:59:51,582 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-10-28 23:59:51,589 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:51,646 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-10-28 23:59:51,647 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-10-28 23:59:51,697 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:51,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-10-28 23:59:51,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-10-28 23:59:51,806 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:51,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-10-28 23:59:51,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0bv32; [2021-10-28 23:59:51,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-10-28 23:59:51,911 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:52,190 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2021-10-28 23:59:52,191 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2021-10-28 23:59:52,193 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:52,260 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-10-28 23:59:52,261 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-10-28 23:59:52,351 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:52,400 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-10-28 23:59:52,400 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-10-28 23:59:52,412 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:52,751 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-10-28 23:59:52,751 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-10-28 23:59:52,776 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:59:52,784 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 23:59:52,784 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 23:59:52,846 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:59:52,847 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:59:52,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:52 BoogieIcfgContainer [2021-10-28 23:59:52,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:59:52,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:59:52,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:59:52,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:59:52,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:59:49" (1/3) ... [2021-10-28 23:59:52,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258ed4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:52, skipping insertion in model container [2021-10-28 23:59:52,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:50" (2/3) ... [2021-10-28 23:59:52,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258ed4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:52, skipping insertion in model container [2021-10-28 23:59:52,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:52" (3/3) ... [2021-10-28 23:59:52,877 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-10-28 23:59:52,884 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:59:52,885 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 23:59:52,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:59:52,995 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 [2021-10-28 23:59:52,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:59:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) [2021-10-28 23:59:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:59:53,044 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:53,045 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:53,046 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash 633313405, now seen corresponding path program 1 times [2021-10-28 23:59:53,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:53,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439383265] [2021-10-28 23:59:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:53,076 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:53,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:53,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:53,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:59:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:53,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:59:53,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:53,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:53,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:53,660 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:53,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439383265] [2021-10-28 23:59:53,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439383265] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:53,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:53,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-28 23:59:53,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709288373] [2021-10-28 23:59:53,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:59:53,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:53,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:59:53,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:59:53,703 INFO L87 Difference]: Start difference. First operand has 518 states, 383 states have (on average 1.4908616187989556) internal successors, (571), 405 states have internal predecessors, (571), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:59:53,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:53,813 INFO L93 Difference]: Finished difference Result 515 states and 755 transitions. [2021-10-28 23:59:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:59:53,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 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 15 [2021-10-28 23:59:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:53,837 INFO L225 Difference]: With dead ends: 515 [2021-10-28 23:59:53,838 INFO L226 Difference]: Without dead ends: 509 [2021-10-28 23:59:53,839 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:59:53,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-10-28 23:59:53,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2021-10-28 23:59:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4603174603174602) internal successors, (552), 397 states have internal predecessors, (552), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 23:59:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 741 transitions. [2021-10-28 23:59:53,967 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 741 transitions. Word has length 15 [2021-10-28 23:59:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:53,968 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 741 transitions. [2021-10-28 23:59:53,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:59:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 741 transitions. [2021-10-28 23:59:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:59:53,970 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:53,971 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:53,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 23:59:54,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:59:54,181 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:54,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1738610777, now seen corresponding path program 1 times [2021-10-28 23:59:54,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:54,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501661236] [2021-10-28 23:59:54,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:54,190 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:54,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:54,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:54,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:59:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:54,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:54,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:54,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:54,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:54,721 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:54,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501661236] [2021-10-28 23:59:54,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501661236] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:54,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:54,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 23:59:54,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223791756] [2021-10-28 23:59:54,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:59:54,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:54,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:59:54,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:54,729 INFO L87 Difference]: Start difference. First operand 509 states and 741 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:59:54,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:54,937 INFO L93 Difference]: Finished difference Result 514 states and 747 transitions. [2021-10-28 23:59:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:59:54,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2021-10-28 23:59:54,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:54,946 INFO L225 Difference]: With dead ends: 514 [2021-10-28 23:59:54,946 INFO L226 Difference]: Without dead ends: 509 [2021-10-28 23:59:54,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:54,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-10-28 23:59:54,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2021-10-28 23:59:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4576719576719577) internal successors, (551), 397 states have internal predecessors, (551), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-10-28 23:59:54,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2021-10-28 23:59:54,995 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2021-10-28 23:59:54,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:54,995 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2021-10-28 23:59:54,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:59:54,996 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2021-10-28 23:59:54,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:59:54,998 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:54,998 INFO L513 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] [2021-10-28 23:59:55,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:55,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:59:55,215 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:55,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:55,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1016281706, now seen corresponding path program 1 times [2021-10-28 23:59:55,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:55,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226713221] [2021-10-28 23:59:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:55,217 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:55,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:55,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:55,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:59:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:55,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:59:55,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:55,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:55,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:56,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:56,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226713221] [2021-10-28 23:59:56,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226713221] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:56,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:56,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-10-28 23:59:56,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381446542] [2021-10-28 23:59:56,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:59:56,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:56,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:59:56,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:59:56,025 INFO L87 Difference]: Start difference. First operand 509 states and 740 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:59:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:57,098 INFO L93 Difference]: Finished difference Result 675 states and 960 transitions. [2021-10-28 23:59:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:59:57,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2021-10-28 23:59:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:57,108 INFO L225 Difference]: With dead ends: 675 [2021-10-28 23:59:57,109 INFO L226 Difference]: Without dead ends: 674 [2021-10-28 23:59:57,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:59:57,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-10-28 23:59:57,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 654. [2021-10-28 23:59:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 494 states have (on average 1.4129554655870444) internal successors, (698), 501 states have internal predecessors, (698), 112 states have call successors, (112), 40 states have call predecessors, (112), 47 states have return successors, (124), 118 states have call predecessors, (124), 99 states have call successors, (124) [2021-10-28 23:59:57,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 934 transitions. [2021-10-28 23:59:57,187 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 934 transitions. Word has length 25 [2021-10-28 23:59:57,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:57,187 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 934 transitions. [2021-10-28 23:59:57,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 5 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:59:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 934 transitions. [2021-10-28 23:59:57,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:59:57,204 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:57,205 INFO L513 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] [2021-10-28 23:59:57,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:57,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:59:57,422 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:57,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:57,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1367852756, now seen corresponding path program 1 times [2021-10-28 23:59:57,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:57,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142025109] [2021-10-28 23:59:57,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:57,424 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:57,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:57,426 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:57,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:59:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:57,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:59:57,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:57,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:57,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:58,116 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:58,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142025109] [2021-10-28 23:59:58,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142025109] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:58,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:58,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 23:59:58,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508566620] [2021-10-28 23:59:58,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:59:58,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:58,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:59:58,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:58,121 INFO L87 Difference]: Start difference. First operand 654 states and 934 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:59:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:58,192 INFO L93 Difference]: Finished difference Result 823 states and 1156 transitions. [2021-10-28 23:59:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:59:58,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2021-10-28 23:59:58,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:58,203 INFO L225 Difference]: With dead ends: 823 [2021-10-28 23:59:58,204 INFO L226 Difference]: Without dead ends: 823 [2021-10-28 23:59:58,206 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:58,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-10-28 23:59:58,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 769. [2021-10-28 23:59:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 595 states have (on average 1.411764705882353) internal successors, (840), 597 states have internal predecessors, (840), 114 states have call successors, (114), 46 states have call predecessors, (114), 59 states have return successors, (140), 128 states have call predecessors, (140), 104 states have call successors, (140) [2021-10-28 23:59:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1094 transitions. [2021-10-28 23:59:58,276 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1094 transitions. Word has length 30 [2021-10-28 23:59:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:58,276 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1094 transitions. [2021-10-28 23:59:58,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:59:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1094 transitions. [2021-10-28 23:59:58,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:59:58,284 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:58,284 INFO L513 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] [2021-10-28 23:59:58,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:58,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:59:58,500 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 23:59:58,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:58,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1062919399, now seen corresponding path program 1 times [2021-10-28 23:59:58,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:58,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737467757] [2021-10-28 23:59:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:58,502 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:58,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:58,503 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:58,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:59:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:58,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:59:58,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:59,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:59,434 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:59,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737467757] [2021-10-28 23:59:59,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737467757] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:59,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:59,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 23:59:59,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131879004] [2021-10-28 23:59:59,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:59:59,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:59,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:59:59,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:59:59,441 INFO L87 Difference]: Start difference. First operand 769 states and 1094 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 6 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-29 00:00:00,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:00,832 INFO L93 Difference]: Finished difference Result 910 states and 1290 transitions. [2021-10-29 00:00:00,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 6 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 31 [2021-10-29 00:00:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:00,842 INFO L225 Difference]: With dead ends: 910 [2021-10-29 00:00:00,842 INFO L226 Difference]: Without dead ends: 910 [2021-10-29 00:00:00,848 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:00:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-10-29 00:00:00,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 815. [2021-10-29 00:00:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 633 states have (on average 1.4060031595576619) internal successors, (890), 635 states have internal predecessors, (890), 118 states have call successors, (118), 50 states have call predecessors, (118), 63 states have return successors, (154), 132 states have call predecessors, (154), 108 states have call successors, (154) [2021-10-29 00:00:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1162 transitions. [2021-10-29 00:00:00,900 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1162 transitions. Word has length 31 [2021-10-29 00:00:00,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:00,901 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1162 transitions. [2021-10-29 00:00:00,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 6 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-29 00:00:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1162 transitions. [2021-10-29 00:00:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-29 00:00:00,907 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:00,907 INFO L513 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] [2021-10-29 00:00:00,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:01,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:01,125 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:01,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:01,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1821153895, now seen corresponding path program 1 times [2021-10-29 00:00:01,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:01,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570790753] [2021-10-29 00:00:01,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:01,127 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:01,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:01,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:01,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 00:00:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:01,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:00:01,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:01,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:01,923 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:01,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570790753] [2021-10-29 00:00:01,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570790753] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:01,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:01,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-10-29 00:00:01,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554072934] [2021-10-29 00:00:01,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:01,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:01,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:01,927 INFO L87 Difference]: Start difference. First operand 815 states and 1162 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-29 00:00:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:02,810 INFO L93 Difference]: Finished difference Result 814 states and 1159 transitions. [2021-10-29 00:00:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:02,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2021-10-29 00:00:02,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:02,818 INFO L225 Difference]: With dead ends: 814 [2021-10-29 00:00:02,819 INFO L226 Difference]: Without dead ends: 814 [2021-10-29 00:00:02,819 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-10-29 00:00:02,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 814. [2021-10-29 00:00:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 633 states have (on average 1.4028436018957346) internal successors, (888), 634 states have internal predecessors, (888), 117 states have call successors, (117), 50 states have call predecessors, (117), 63 states have return successors, (154), 132 states have call predecessors, (154), 108 states have call successors, (154) [2021-10-29 00:00:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1159 transitions. [2021-10-29 00:00:02,864 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1159 transitions. Word has length 36 [2021-10-29 00:00:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:02,865 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 1159 transitions. [2021-10-29 00:00:02,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-29 00:00:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1159 transitions. [2021-10-29 00:00:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 00:00:02,869 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:02,869 INFO L513 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] [2021-10-29 00:00:02,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:03,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:03,084 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:03,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:03,085 INFO L85 PathProgramCache]: Analyzing trace with hash -591738262, now seen corresponding path program 1 times [2021-10-29 00:00:03,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:03,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860900382] [2021-10-29 00:00:03,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:03,086 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:03,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:03,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:03,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 00:00:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:03,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:03,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:03,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:03,780 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:03,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860900382] [2021-10-29 00:00:03,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860900382] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:03,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:03,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 00:00:03,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001199767] [2021-10-29 00:00:03,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:00:03,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:00:03,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:03,785 INFO L87 Difference]: Start difference. First operand 814 states and 1159 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-29 00:00:03,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:03,955 INFO L93 Difference]: Finished difference Result 1008 states and 1397 transitions. [2021-10-29 00:00:03,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:03,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-10-29 00:00:03,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:03,963 INFO L225 Difference]: With dead ends: 1008 [2021-10-29 00:00:03,964 INFO L226 Difference]: Without dead ends: 1008 [2021-10-29 00:00:03,965 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:03,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-10-29 00:00:03,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 828. [2021-10-29 00:00:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 651 states have (on average 1.400921658986175) internal successors, (912), 653 states have internal predecessors, (912), 112 states have call successors, (112), 50 states have call predecessors, (112), 64 states have return successors, (149), 127 states have call predecessors, (149), 103 states have call successors, (149) [2021-10-29 00:00:04,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1173 transitions. [2021-10-29 00:00:04,007 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1173 transitions. Word has length 39 [2021-10-29 00:00:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:04,008 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1173 transitions. [2021-10-29 00:00:04,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-29 00:00:04,008 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1173 transitions. [2021-10-29 00:00:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-29 00:00:04,012 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:04,013 INFO L513 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] [2021-10-29 00:00:04,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:04,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:04,228 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:04,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1528077449, now seen corresponding path program 1 times [2021-10-29 00:00:04,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:04,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363602005] [2021-10-29 00:00:04,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:04,230 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:04,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:04,231 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:04,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 00:00:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:04,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:00:04,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:04,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:05,023 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:05,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363602005] [2021-10-29 00:00:05,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363602005] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:05,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:05,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:00:05,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408801375] [2021-10-29 00:00:05,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:00:05,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:05,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:00:05,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:05,031 INFO L87 Difference]: Start difference. First operand 828 states and 1173 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-29 00:00:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:05,086 INFO L93 Difference]: Finished difference Result 910 states and 1272 transitions. [2021-10-29 00:00:05,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:00:05,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-10-29 00:00:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:05,096 INFO L225 Difference]: With dead ends: 910 [2021-10-29 00:00:05,097 INFO L226 Difference]: Without dead ends: 910 [2021-10-29 00:00:05,097 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:05,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-10-29 00:00:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 854. [2021-10-29 00:00:05,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 675 states have (on average 1.4103703703703703) internal successors, (952), 686 states have internal predecessors, (952), 114 states have call successors, (114), 53 states have call predecessors, (114), 64 states have return successors, (142), 119 states have call predecessors, (142), 106 states have call successors, (142) [2021-10-29 00:00:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1208 transitions. [2021-10-29 00:00:05,141 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1208 transitions. Word has length 40 [2021-10-29 00:00:05,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:05,144 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1208 transitions. [2021-10-29 00:00:05,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-29 00:00:05,145 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1208 transitions. [2021-10-29 00:00:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-29 00:00:05,150 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:05,150 INFO L513 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] [2021-10-29 00:00:05,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:05,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:05,365 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:05,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:05,365 INFO L85 PathProgramCache]: Analyzing trace with hash -751837642, now seen corresponding path program 1 times [2021-10-29 00:00:05,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:05,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278626521] [2021-10-29 00:00:05,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:05,367 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:05,381 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:05,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 00:00:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:05,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:05,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:06,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:06,285 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:06,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278626521] [2021-10-29 00:00:06,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278626521] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:06,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:06,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-10-29 00:00:06,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569337650] [2021-10-29 00:00:06,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:06,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:06,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:06,293 INFO L87 Difference]: Start difference. First operand 854 states and 1208 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-29 00:00:06,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:06,921 INFO L93 Difference]: Finished difference Result 766 states and 1066 transitions. [2021-10-29 00:00:06,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:06,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2021-10-29 00:00:06,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:06,929 INFO L225 Difference]: With dead ends: 766 [2021-10-29 00:00:06,929 INFO L226 Difference]: Without dead ends: 766 [2021-10-29 00:00:06,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:06,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-10-29 00:00:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 732. [2021-10-29 00:00:06,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 572 states have (on average 1.4038461538461537) internal successors, (803), 583 states have internal predecessors, (803), 106 states have call successors, (106), 46 states have call predecessors, (106), 53 states have return successors, (119), 107 states have call predecessors, (119), 98 states have call successors, (119) [2021-10-29 00:00:06,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1028 transitions. [2021-10-29 00:00:06,961 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1028 transitions. Word has length 47 [2021-10-29 00:00:06,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:06,962 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1028 transitions. [2021-10-29 00:00:06,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-29 00:00:06,963 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1028 transitions. [2021-10-29 00:00:06,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-29 00:00:06,968 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:06,968 INFO L513 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] [2021-10-29 00:00:06,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:07,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:07,188 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1459738846, now seen corresponding path program 1 times [2021-10-29 00:00:07,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:07,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707223661] [2021-10-29 00:00:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:07,189 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:07,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:07,191 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:07,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 00:00:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:07,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:07,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:07,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:07,922 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:07,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707223661] [2021-10-29 00:00:07,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707223661] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:07,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:07,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:00:07,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365820722] [2021-10-29 00:00:07,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:00:07,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:07,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:00:07,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:07,925 INFO L87 Difference]: Start difference. First operand 732 states and 1028 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-29 00:00:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:07,955 INFO L93 Difference]: Finished difference Result 756 states and 1052 transitions. [2021-10-29 00:00:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:00:07,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2021-10-29 00:00:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:07,961 INFO L225 Difference]: With dead ends: 756 [2021-10-29 00:00:07,962 INFO L226 Difference]: Without dead ends: 756 [2021-10-29 00:00:07,962 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-10-29 00:00:08,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 731. [2021-10-29 00:00:08,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 571 states have (on average 1.4010507880910683) internal successors, (800), 582 states have internal predecessors, (800), 106 states have call successors, (106), 46 states have call predecessors, (106), 53 states have return successors, (117), 107 states have call predecessors, (117), 98 states have call successors, (117) [2021-10-29 00:00:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1023 transitions. [2021-10-29 00:00:08,014 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1023 transitions. Word has length 47 [2021-10-29 00:00:08,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:08,015 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 1023 transitions. [2021-10-29 00:00:08,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-29 00:00:08,015 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1023 transitions. [2021-10-29 00:00:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-29 00:00:08,018 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:08,019 INFO L513 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] [2021-10-29 00:00:08,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:08,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:08,232 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:08,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:08,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1711019189, now seen corresponding path program 1 times [2021-10-29 00:00:08,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:08,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794494123] [2021-10-29 00:00:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:08,234 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:08,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:08,236 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:08,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 00:00:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:08,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:00:08,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:09,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:09,557 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:09,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794494123] [2021-10-29 00:00:09,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794494123] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:09,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:09,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-10-29 00:00:09,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441373733] [2021-10-29 00:00:09,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 00:00:09,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:09,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:00:09,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:00:09,560 INFO L87 Difference]: Start difference. First operand 731 states and 1023 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-29 00:00:11,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:11,654 INFO L93 Difference]: Finished difference Result 1001 states and 1433 transitions. [2021-10-29 00:00:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 00:00:11,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 48 [2021-10-29 00:00:11,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:11,663 INFO L225 Difference]: With dead ends: 1001 [2021-10-29 00:00:11,664 INFO L226 Difference]: Without dead ends: 1001 [2021-10-29 00:00:11,664 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-10-29 00:00:11,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-10-29 00:00:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 794. [2021-10-29 00:00:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 623 states have (on average 1.3948635634028892) internal successors, (869), 635 states have internal predecessors, (869), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-29 00:00:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1110 transitions. [2021-10-29 00:00:11,703 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1110 transitions. Word has length 48 [2021-10-29 00:00:11,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:11,703 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1110 transitions. [2021-10-29 00:00:11,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-29 00:00:11,704 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1110 transitions. [2021-10-29 00:00:11,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-29 00:00:11,707 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:11,707 INFO L513 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] [2021-10-29 00:00:11,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:11,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:11,922 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:11,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:11,923 INFO L85 PathProgramCache]: Analyzing trace with hash -17559376, now seen corresponding path program 1 times [2021-10-29 00:00:11,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:11,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291478641] [2021-10-29 00:00:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:11,924 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:11,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:11,926 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:11,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 00:00:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:12,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:00:12,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:12,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:13,416 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:13,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291478641] [2021-10-29 00:00:13,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291478641] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:13,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:13,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-10-29 00:00:13,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775786969] [2021-10-29 00:00:13,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 00:00:13,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:13,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:00:13,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:00:13,419 INFO L87 Difference]: Start difference. First operand 794 states and 1110 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-29 00:00:15,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:15,823 INFO L93 Difference]: Finished difference Result 914 states and 1318 transitions. [2021-10-29 00:00:15,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 00:00:15,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 50 [2021-10-29 00:00:15,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:15,829 INFO L225 Difference]: With dead ends: 914 [2021-10-29 00:00:15,829 INFO L226 Difference]: Without dead ends: 914 [2021-10-29 00:00:15,830 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-29 00:00:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-10-29 00:00:15,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2021-10-29 00:00:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 621 states have (on average 1.3896940418679549) internal successors, (863), 633 states have internal predecessors, (863), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2021-10-29 00:00:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1104 transitions. [2021-10-29 00:00:15,867 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1104 transitions. Word has length 50 [2021-10-29 00:00:15,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:15,868 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1104 transitions. [2021-10-29 00:00:15,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-10-29 00:00:15,868 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1104 transitions. [2021-10-29 00:00:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-29 00:00:15,872 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:15,872 INFO L513 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] [2021-10-29 00:00:15,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:16,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:16,090 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:16,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:16,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1865011280, now seen corresponding path program 1 times [2021-10-29 00:00:16,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:16,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962847285] [2021-10-29 00:00:16,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:16,091 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:16,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:16,093 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:16,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-29 00:00:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:16,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:16,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:16,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:17,024 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:17,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962847285] [2021-10-29 00:00:17,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962847285] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:17,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:17,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:00:17,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136088] [2021-10-29 00:00:17,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:00:17,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:00:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:17,026 INFO L87 Difference]: Start difference. First operand 792 states and 1104 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-29 00:00:17,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:17,157 INFO L93 Difference]: Finished difference Result 954 states and 1318 transitions. [2021-10-29 00:00:17,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:00:17,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-10-29 00:00:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:17,165 INFO L225 Difference]: With dead ends: 954 [2021-10-29 00:00:17,165 INFO L226 Difference]: Without dead ends: 954 [2021-10-29 00:00:17,166 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2021-10-29 00:00:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 848. [2021-10-29 00:00:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 663 states have (on average 1.3710407239819005) internal successors, (909), 677 states have internal predecessors, (909), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-29 00:00:17,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1164 transitions. [2021-10-29 00:00:17,204 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1164 transitions. Word has length 50 [2021-10-29 00:00:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:17,206 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1164 transitions. [2021-10-29 00:00:17,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-29 00:00:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1164 transitions. [2021-10-29 00:00:17,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-29 00:00:17,210 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:17,210 INFO L513 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] [2021-10-29 00:00:17,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:17,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:17,428 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:17,429 INFO L85 PathProgramCache]: Analyzing trace with hash -540904097, now seen corresponding path program 1 times [2021-10-29 00:00:17,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:17,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963954631] [2021-10-29 00:00:17,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:17,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:17,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:17,434 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:17,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 00:00:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:18,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:00:18,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:18,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:18,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:18,453 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:18,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963954631] [2021-10-29 00:00:18,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963954631] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:18,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:18,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 00:00:18,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5065011] [2021-10-29 00:00:18,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:18,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:18,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:18,456 INFO L87 Difference]: Start difference. First operand 848 states and 1164 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-29 00:00:18,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:18,742 INFO L93 Difference]: Finished difference Result 882 states and 1209 transitions. [2021-10-29 00:00:18,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:00:18,743 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2021-10-29 00:00:18,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:18,749 INFO L225 Difference]: With dead ends: 882 [2021-10-29 00:00:18,749 INFO L226 Difference]: Without dead ends: 882 [2021-10-29 00:00:18,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-10-29 00:00:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 854. [2021-10-29 00:00:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 669 states have (on average 1.3721973094170403) internal successors, (918), 683 states have internal predecessors, (918), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-29 00:00:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1173 transitions. [2021-10-29 00:00:18,783 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1173 transitions. Word has length 52 [2021-10-29 00:00:18,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:18,784 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1173 transitions. [2021-10-29 00:00:18,784 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-29 00:00:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1173 transitions. [2021-10-29 00:00:18,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-29 00:00:18,788 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:18,788 INFO L513 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] [2021-10-29 00:00:18,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:19,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:19,007 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash -400355487, now seen corresponding path program 1 times [2021-10-29 00:00:19,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:19,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981518014] [2021-10-29 00:00:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:19,009 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:19,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:19,009 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:19,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-29 00:00:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:19,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:19,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:19,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:20,042 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:20,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981518014] [2021-10-29 00:00:20,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981518014] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:20,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:20,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:00:20,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169293925] [2021-10-29 00:00:20,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:00:20,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:20,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:00:20,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:20,045 INFO L87 Difference]: Start difference. First operand 854 states and 1173 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-29 00:00:20,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:20,146 INFO L93 Difference]: Finished difference Result 877 states and 1199 transitions. [2021-10-29 00:00:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:00:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2021-10-29 00:00:20,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:20,157 INFO L225 Difference]: With dead ends: 877 [2021-10-29 00:00:20,157 INFO L226 Difference]: Without dead ends: 877 [2021-10-29 00:00:20,161 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2021-10-29 00:00:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 873. [2021-10-29 00:00:20,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 685 states have (on average 1.3693430656934307) internal successors, (938), 700 states have internal predecessors, (938), 113 states have call successors, (113), 52 states have call predecessors, (113), 74 states have return successors, (145), 128 states have call predecessors, (145), 105 states have call successors, (145) [2021-10-29 00:00:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1196 transitions. [2021-10-29 00:00:20,218 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1196 transitions. Word has length 52 [2021-10-29 00:00:20,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:20,219 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1196 transitions. [2021-10-29 00:00:20,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-29 00:00:20,220 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1196 transitions. [2021-10-29 00:00:20,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 00:00:20,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:20,224 INFO L513 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] [2021-10-29 00:00:20,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:20,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:20,443 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:20,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:20,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1037319808, now seen corresponding path program 1 times [2021-10-29 00:00:20,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:20,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020606685] [2021-10-29 00:00:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:20,445 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:20,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:20,447 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:20,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-29 00:00:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:21,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:00:21,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:21,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:21,759 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:21,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020606685] [2021-10-29 00:00:21,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020606685] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:21,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:21,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-29 00:00:21,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158018876] [2021-10-29 00:00:21,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 00:00:21,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 00:00:21,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:00:21,763 INFO L87 Difference]: Start difference. First operand 873 states and 1196 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-29 00:00:23,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:23,163 INFO L93 Difference]: Finished difference Result 1555 states and 2148 transitions. [2021-10-29 00:00:23,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-29 00:00:23,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2021-10-29 00:00:23,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:23,176 INFO L225 Difference]: With dead ends: 1555 [2021-10-29 00:00:23,176 INFO L226 Difference]: Without dead ends: 1555 [2021-10-29 00:00:23,177 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-10-29 00:00:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2021-10-29 00:00:23,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1345. [2021-10-29 00:00:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1056 states have (on average 1.3806818181818181) internal successors, (1458), 1090 states have internal predecessors, (1458), 176 states have call successors, (176), 84 states have call predecessors, (176), 112 states have return successors, (236), 176 states have call predecessors, (236), 168 states have call successors, (236) [2021-10-29 00:00:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1870 transitions. [2021-10-29 00:00:23,258 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1870 transitions. Word has length 54 [2021-10-29 00:00:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:23,259 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 1870 transitions. [2021-10-29 00:00:23,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-29 00:00:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1870 transitions. [2021-10-29 00:00:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-29 00:00:23,265 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:23,266 INFO L513 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] [2021-10-29 00:00:23,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:23,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:23,486 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:23,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:23,486 INFO L85 PathProgramCache]: Analyzing trace with hash -219767481, now seen corresponding path program 1 times [2021-10-29 00:00:23,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:23,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664888069] [2021-10-29 00:00:23,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:23,487 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:23,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:23,489 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:23,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-29 00:00:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:24,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:00:24,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:24,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:24,441 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:24,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664888069] [2021-10-29 00:00:24,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664888069] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:24,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:24,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:00:24,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845998636] [2021-10-29 00:00:24,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:00:24,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:24,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:00:24,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:24,447 INFO L87 Difference]: Start difference. First operand 1345 states and 1870 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-29 00:00:24,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:24,524 INFO L93 Difference]: Finished difference Result 1342 states and 1863 transitions. [2021-10-29 00:00:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:00:24,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-10-29 00:00:24,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:24,533 INFO L225 Difference]: With dead ends: 1342 [2021-10-29 00:00:24,533 INFO L226 Difference]: Without dead ends: 1342 [2021-10-29 00:00:24,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:00:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-10-29 00:00:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2021-10-29 00:00:24,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1054 states have (on average 1.3776091081593929) internal successors, (1452), 1087 states have internal predecessors, (1452), 175 states have call successors, (175), 84 states have call predecessors, (175), 112 states have return successors, (236), 176 states have call predecessors, (236), 168 states have call successors, (236) [2021-10-29 00:00:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1863 transitions. [2021-10-29 00:00:24,621 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1863 transitions. Word has length 56 [2021-10-29 00:00:24,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:24,621 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 1863 transitions. [2021-10-29 00:00:24,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-29 00:00:24,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1863 transitions. [2021-10-29 00:00:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-29 00:00:24,628 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:24,629 INFO L513 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] [2021-10-29 00:00:24,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:24,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:24,849 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:24,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:24,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1536910814, now seen corresponding path program 1 times [2021-10-29 00:00:24,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:24,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686087608] [2021-10-29 00:00:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:24,850 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:24,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:24,852 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:24,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-29 00:00:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:25,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 00:00:25,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:25,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:26,236 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:26,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686087608] [2021-10-29 00:00:26,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686087608] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:26,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:26,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-10-29 00:00:26,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244801533] [2021-10-29 00:00:26,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 00:00:26,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:26,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 00:00:26,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-29 00:00:26,246 INFO L87 Difference]: Start difference. First operand 1342 states and 1863 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-29 00:00:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:26,528 INFO L93 Difference]: Finished difference Result 1375 states and 1899 transitions. [2021-10-29 00:00:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-29 00:00:26,529 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2021-10-29 00:00:26,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:26,539 INFO L225 Difference]: With dead ends: 1375 [2021-10-29 00:00:26,539 INFO L226 Difference]: Without dead ends: 1352 [2021-10-29 00:00:26,540 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-10-29 00:00:26,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2021-10-29 00:00:26,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1348. [2021-10-29 00:00:26,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1059 states have (on average 1.3758262511803587) internal successors, (1457), 1093 states have internal predecessors, (1457), 176 states have call successors, (176), 84 states have call predecessors, (176), 112 states have return successors, (237), 177 states have call predecessors, (237), 169 states have call successors, (237) [2021-10-29 00:00:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1870 transitions. [2021-10-29 00:00:26,597 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1870 transitions. Word has length 51 [2021-10-29 00:00:26,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:26,598 INFO L470 AbstractCegarLoop]: Abstraction has 1348 states and 1870 transitions. [2021-10-29 00:00:26,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-29 00:00:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1870 transitions. [2021-10-29 00:00:26,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-29 00:00:26,604 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:26,604 INFO L513 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] [2021-10-29 00:00:26,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:26,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:26,823 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:26,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:26,823 INFO L85 PathProgramCache]: Analyzing trace with hash 917468979, now seen corresponding path program 1 times [2021-10-29 00:00:26,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:26,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608029527] [2021-10-29 00:00:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:26,824 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:26,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:26,826 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:26,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-29 00:00:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:27,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:27,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:27,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:28,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:28,241 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:28,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608029527] [2021-10-29 00:00:28,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608029527] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:28,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:28,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 00:00:28,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055671825] [2021-10-29 00:00:28,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:28,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:28,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:28,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:28,244 INFO L87 Difference]: Start difference. First operand 1348 states and 1870 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:00:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:28,964 INFO L93 Difference]: Finished difference Result 1361 states and 1881 transitions. [2021-10-29 00:00:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:28,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 53 [2021-10-29 00:00:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:28,972 INFO L225 Difference]: With dead ends: 1361 [2021-10-29 00:00:28,972 INFO L226 Difference]: Without dead ends: 1329 [2021-10-29 00:00:28,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2021-10-29 00:00:29,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1321. [2021-10-29 00:00:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1037 states have (on average 1.3799421407907426) internal successors, (1431), 1070 states have internal predecessors, (1431), 173 states have call successors, (173), 82 states have call predecessors, (173), 110 states have return successors, (234), 174 states have call predecessors, (234), 166 states have call successors, (234) [2021-10-29 00:00:29,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1838 transitions. [2021-10-29 00:00:29,023 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1838 transitions. Word has length 53 [2021-10-29 00:00:29,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:29,024 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1838 transitions. [2021-10-29 00:00:29,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:00:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1838 transitions. [2021-10-29 00:00:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 00:00:29,030 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:29,030 INFO L513 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] [2021-10-29 00:00:29,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:29,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:29,246 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:29,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:29,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1142318984, now seen corresponding path program 1 times [2021-10-29 00:00:29,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:29,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777834096] [2021-10-29 00:00:29,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:29,248 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:29,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:29,249 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:29,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-29 00:00:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:30,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:30,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:30,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:30,649 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:30,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777834096] [2021-10-29 00:00:30,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777834096] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:30,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:30,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 00:00:30,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501149953] [2021-10-29 00:00:30,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:30,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:30,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:30,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:30,652 INFO L87 Difference]: Start difference. First operand 1321 states and 1838 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:00:31,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:31,621 INFO L93 Difference]: Finished difference Result 1515 states and 2117 transitions. [2021-10-29 00:00:31,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:31,623 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), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 54 [2021-10-29 00:00:31,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:31,635 INFO L225 Difference]: With dead ends: 1515 [2021-10-29 00:00:31,635 INFO L226 Difference]: Without dead ends: 1513 [2021-10-29 00:00:31,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2021-10-29 00:00:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1314. [2021-10-29 00:00:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1031 states have (on average 1.3743937924345295) internal successors, (1417), 1063 states have internal predecessors, (1417), 172 states have call successors, (172), 82 states have call predecessors, (172), 110 states have return successors, (234), 174 states have call predecessors, (234), 166 states have call successors, (234) [2021-10-29 00:00:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1823 transitions. [2021-10-29 00:00:31,716 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1823 transitions. Word has length 54 [2021-10-29 00:00:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:31,717 INFO L470 AbstractCegarLoop]: Abstraction has 1314 states and 1823 transitions. [2021-10-29 00:00:31,719 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), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:00:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1823 transitions. [2021-10-29 00:00:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-29 00:00:31,726 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:31,727 INFO L513 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] [2021-10-29 00:00:31,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:31,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:31,948 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:31,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash -881284292, now seen corresponding path program 1 times [2021-10-29 00:00:31,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:31,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683083142] [2021-10-29 00:00:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:31,950 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:31,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:31,952 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:31,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-29 00:00:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:32,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:00:32,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:32,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:33,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:33,360 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:33,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683083142] [2021-10-29 00:00:33,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683083142] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:33,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:33,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-29 00:00:33,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823150428] [2021-10-29 00:00:33,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-29 00:00:33,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:33,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-29 00:00:33,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-10-29 00:00:33,363 INFO L87 Difference]: Start difference. First operand 1314 states and 1823 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-29 00:00:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:33,868 INFO L93 Difference]: Finished difference Result 1377 states and 1903 transitions. [2021-10-29 00:00:33,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 00:00:33,869 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 55 [2021-10-29 00:00:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:33,877 INFO L225 Difference]: With dead ends: 1377 [2021-10-29 00:00:33,877 INFO L226 Difference]: Without dead ends: 1257 [2021-10-29 00:00:33,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2021-10-29 00:00:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2021-10-29 00:00:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1252. [2021-10-29 00:00:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 983 states have (on average 1.3326551373346898) internal successors, (1310), 1014 states have internal predecessors, (1310), 158 states have call successors, (158), 82 states have call predecessors, (158), 110 states have return successors, (220), 161 states have call predecessors, (220), 152 states have call successors, (220) [2021-10-29 00:00:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1688 transitions. [2021-10-29 00:00:33,925 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1688 transitions. Word has length 55 [2021-10-29 00:00:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:33,926 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 1688 transitions. [2021-10-29 00:00:33,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-29 00:00:33,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1688 transitions. [2021-10-29 00:00:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-29 00:00:33,933 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:33,933 INFO L513 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] [2021-10-29 00:00:33,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:34,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:34,148 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:34,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash 149703456, now seen corresponding path program 1 times [2021-10-29 00:00:34,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:34,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005465088] [2021-10-29 00:00:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:34,150 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:34,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:34,151 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:34,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-29 00:00:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:34,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 00:00:34,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:35,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:35,809 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:35,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005465088] [2021-10-29 00:00:35,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005465088] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:35,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:35,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-10-29 00:00:35,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799803159] [2021-10-29 00:00:35,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-29 00:00:35,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:35,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-29 00:00:35,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-10-29 00:00:35,811 INFO L87 Difference]: Start difference. First operand 1252 states and 1688 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:00:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:36,298 INFO L93 Difference]: Finished difference Result 1332 states and 1786 transitions. [2021-10-29 00:00:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-29 00:00:36,299 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 56 [2021-10-29 00:00:36,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:36,308 INFO L225 Difference]: With dead ends: 1332 [2021-10-29 00:00:36,308 INFO L226 Difference]: Without dead ends: 1296 [2021-10-29 00:00:36,309 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-10-29 00:00:36,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2021-10-29 00:00:36,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1254. [2021-10-29 00:00:36,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 987 states have (on average 1.331306990881459) internal successors, (1314), 1018 states have internal predecessors, (1314), 156 states have call successors, (156), 82 states have call predecessors, (156), 110 states have return successors, (218), 159 states have call predecessors, (218), 150 states have call successors, (218) [2021-10-29 00:00:36,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1688 transitions. [2021-10-29 00:00:36,354 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1688 transitions. Word has length 56 [2021-10-29 00:00:36,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:36,355 INFO L470 AbstractCegarLoop]: Abstraction has 1254 states and 1688 transitions. [2021-10-29 00:00:36,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:00:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1688 transitions. [2021-10-29 00:00:36,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-29 00:00:36,360 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:36,361 INFO L513 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] [2021-10-29 00:00:36,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:36,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:36,575 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:36,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:36,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1617706055, now seen corresponding path program 1 times [2021-10-29 00:00:36,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:36,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454581872] [2021-10-29 00:00:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:36,576 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:36,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:36,577 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:36,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-29 00:00:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:37,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 00:00:37,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:37,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:38,293 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:38,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454581872] [2021-10-29 00:00:38,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454581872] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:38,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:38,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-10-29 00:00:38,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866934811] [2021-10-29 00:00:38,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-29 00:00:38,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:38,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-29 00:00:38,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-10-29 00:00:38,296 INFO L87 Difference]: Start difference. First operand 1254 states and 1688 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:00:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:38,893 INFO L93 Difference]: Finished difference Result 1323 states and 1771 transitions. [2021-10-29 00:00:38,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-29 00:00:38,894 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 55 [2021-10-29 00:00:38,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:38,903 INFO L225 Difference]: With dead ends: 1323 [2021-10-29 00:00:38,903 INFO L226 Difference]: Without dead ends: 1287 [2021-10-29 00:00:38,904 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-10-29 00:00:38,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2021-10-29 00:00:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1245. [2021-10-29 00:00:38,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 982 states have (on average 1.3309572301425663) internal successors, (1307), 1012 states have internal predecessors, (1307), 154 states have call successors, (154), 82 states have call predecessors, (154), 108 states have return successors, (214), 156 states have call predecessors, (214), 148 states have call successors, (214) [2021-10-29 00:00:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1675 transitions. [2021-10-29 00:00:38,965 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1675 transitions. Word has length 55 [2021-10-29 00:00:38,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:38,966 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 1675 transitions. [2021-10-29 00:00:38,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:00:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1675 transitions. [2021-10-29 00:00:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-29 00:00:38,972 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:38,972 INFO L513 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] [2021-10-29 00:00:39,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:39,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:39,194 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:39,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:39,195 INFO L85 PathProgramCache]: Analyzing trace with hash 209841830, now seen corresponding path program 1 times [2021-10-29 00:00:39,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:39,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568473526] [2021-10-29 00:00:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:39,196 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:39,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:39,198 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:39,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-29 00:00:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:40,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:00:40,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:40,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:40,729 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:40,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568473526] [2021-10-29 00:00:40,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568473526] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:40,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:40,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-29 00:00:40,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130880121] [2021-10-29 00:00:40,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:40,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:40,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:40,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:40,732 INFO L87 Difference]: Start difference. First operand 1245 states and 1675 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-29 00:00:40,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:40,787 INFO L93 Difference]: Finished difference Result 1231 states and 1653 transitions. [2021-10-29 00:00:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:40,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2021-10-29 00:00:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:40,799 INFO L225 Difference]: With dead ends: 1231 [2021-10-29 00:00:40,799 INFO L226 Difference]: Without dead ends: 1231 [2021-10-29 00:00:40,800 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:40,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2021-10-29 00:00:40,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1231. [2021-10-29 00:00:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 968 states have (on average 1.3274793388429753) internal successors, (1285), 998 states have internal predecessors, (1285), 154 states have call successors, (154), 82 states have call predecessors, (154), 108 states have return successors, (214), 156 states have call predecessors, (214), 148 states have call successors, (214) [2021-10-29 00:00:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1653 transitions. [2021-10-29 00:00:40,845 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1653 transitions. Word has length 61 [2021-10-29 00:00:40,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:40,845 INFO L470 AbstractCegarLoop]: Abstraction has 1231 states and 1653 transitions. [2021-10-29 00:00:40,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-29 00:00:40,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1653 transitions. [2021-10-29 00:00:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-29 00:00:40,851 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:40,852 INFO L513 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] [2021-10-29 00:00:40,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:41,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:41,068 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:41,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:41,069 INFO L85 PathProgramCache]: Analyzing trace with hash 288909415, now seen corresponding path program 1 times [2021-10-29 00:00:41,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:41,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065566791] [2021-10-29 00:00:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:41,070 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:41,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:41,073 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:41,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-29 00:00:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:42,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:00:42,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:42,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:42,514 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:42,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065566791] [2021-10-29 00:00:42,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065566791] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:42,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:42,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-29 00:00:42,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561422456] [2021-10-29 00:00:42,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:00:42,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:42,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:00:42,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:42,536 INFO L87 Difference]: Start difference. First operand 1231 states and 1653 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-29 00:00:42,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:42,722 INFO L93 Difference]: Finished difference Result 1251 states and 1684 transitions. [2021-10-29 00:00:42,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:42,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 59 [2021-10-29 00:00:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:42,734 INFO L225 Difference]: With dead ends: 1251 [2021-10-29 00:00:42,734 INFO L226 Difference]: Without dead ends: 1251 [2021-10-29 00:00:42,734 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:42,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2021-10-29 00:00:42,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1243. [2021-10-29 00:00:42,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 976 states have (on average 1.3278688524590163) internal successors, (1296), 1009 states have internal predecessors, (1296), 157 states have call successors, (157), 82 states have call predecessors, (157), 109 states have return successors, (220), 157 states have call predecessors, (220), 151 states have call successors, (220) [2021-10-29 00:00:42,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1673 transitions. [2021-10-29 00:00:42,774 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1673 transitions. Word has length 59 [2021-10-29 00:00:42,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:42,775 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 1673 transitions. [2021-10-29 00:00:42,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-29 00:00:42,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1673 transitions. [2021-10-29 00:00:42,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-29 00:00:42,781 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:42,781 INFO L513 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] [2021-10-29 00:00:42,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:43,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:43,003 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:43,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash -948652757, now seen corresponding path program 1 times [2021-10-29 00:00:43,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:43,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188413144] [2021-10-29 00:00:43,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:43,005 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:43,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:43,005 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:43,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-29 00:00:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:43,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 00:00:43,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:44,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:44,822 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:44,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188413144] [2021-10-29 00:00:44,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188413144] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:44,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:44,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-29 00:00:44,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114152451] [2021-10-29 00:00:44,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 00:00:44,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:44,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 00:00:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-29 00:00:44,825 INFO L87 Difference]: Start difference. First operand 1243 states and 1673 transitions. Second operand has 22 states, 20 states have (on average 3.3) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-29 00:00:45,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:45,503 INFO L93 Difference]: Finished difference Result 1292 states and 1735 transitions. [2021-10-29 00:00:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-29 00:00:45,504 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.3) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) Word has length 59 [2021-10-29 00:00:45,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:45,513 INFO L225 Difference]: With dead ends: 1292 [2021-10-29 00:00:45,513 INFO L226 Difference]: Without dead ends: 1241 [2021-10-29 00:00:45,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2021-10-29 00:00:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2021-10-29 00:00:45,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1238. [2021-10-29 00:00:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 971 states have (on average 1.2996910401647785) internal successors, (1262), 1004 states have internal predecessors, (1262), 157 states have call successors, (157), 82 states have call predecessors, (157), 109 states have return successors, (220), 157 states have call predecessors, (220), 151 states have call successors, (220) [2021-10-29 00:00:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1639 transitions. [2021-10-29 00:00:45,553 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1639 transitions. Word has length 59 [2021-10-29 00:00:45,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:45,553 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1639 transitions. [2021-10-29 00:00:45,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.3) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-29 00:00:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1639 transitions. [2021-10-29 00:00:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-29 00:00:45,559 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:45,559 INFO L513 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] [2021-10-29 00:00:45,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-10-29 00:00:45,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:45,772 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:45,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash 846257089, now seen corresponding path program 1 times [2021-10-29 00:00:45,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:45,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615134466] [2021-10-29 00:00:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:45,773 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:45,775 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:45,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-29 00:00:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:46,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 00:00:46,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:47,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:47,705 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:47,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615134466] [2021-10-29 00:00:47,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615134466] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:47,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:47,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 21 [2021-10-29 00:00:47,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210703783] [2021-10-29 00:00:47,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-29 00:00:47,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:47,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-29 00:00:47,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-10-29 00:00:47,708 INFO L87 Difference]: Start difference. First operand 1238 states and 1639 transitions. Second operand has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:00:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:48,333 INFO L93 Difference]: Finished difference Result 1314 states and 1727 transitions. [2021-10-29 00:00:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-29 00:00:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 58 [2021-10-29 00:00:48,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:48,349 INFO L225 Difference]: With dead ends: 1314 [2021-10-29 00:00:48,358 INFO L226 Difference]: Without dead ends: 1272 [2021-10-29 00:00:48,359 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-29 00:00:48,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2021-10-29 00:00:48,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1232. [2021-10-29 00:00:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 967 states have (on average 1.2988624612202688) internal successors, (1256), 1000 states have internal predecessors, (1256), 155 states have call successors, (155), 82 states have call predecessors, (155), 109 states have return successors, (218), 155 states have call predecessors, (218), 149 states have call successors, (218) [2021-10-29 00:00:48,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1629 transitions. [2021-10-29 00:00:48,407 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1629 transitions. Word has length 58 [2021-10-29 00:00:48,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:48,407 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1629 transitions. [2021-10-29 00:00:48,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 15 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:00:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1629 transitions. [2021-10-29 00:00:48,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-29 00:00:48,413 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:48,413 INFO L513 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] [2021-10-29 00:00:48,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:48,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:48,633 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:48,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1230874093, now seen corresponding path program 1 times [2021-10-29 00:00:48,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:48,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122514379] [2021-10-29 00:00:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:48,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:48,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:48,635 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:48,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-29 00:00:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:49,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:00:49,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:49,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:50,012 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:50,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122514379] [2021-10-29 00:00:50,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122514379] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:50,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:50,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-29 00:00:50,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762091069] [2021-10-29 00:00:50,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:50,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:50,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:50,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:50,014 INFO L87 Difference]: Start difference. First operand 1232 states and 1629 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-29 00:00:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:50,198 INFO L93 Difference]: Finished difference Result 1308 states and 1757 transitions. [2021-10-29 00:00:50,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-10-29 00:00:50,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:50,206 INFO L225 Difference]: With dead ends: 1308 [2021-10-29 00:00:50,206 INFO L226 Difference]: Without dead ends: 1308 [2021-10-29 00:00:50,206 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:50,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2021-10-29 00:00:50,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1246. [2021-10-29 00:00:50,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 977 states have (on average 1.2998976458546572) internal successors, (1270), 1012 states have internal predecessors, (1270), 157 states have call successors, (157), 82 states have call predecessors, (157), 111 states have return successors, (232), 157 states have call predecessors, (232), 151 states have call successors, (232) [2021-10-29 00:00:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1659 transitions. [2021-10-29 00:00:50,287 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1659 transitions. Word has length 60 [2021-10-29 00:00:50,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:50,288 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 1659 transitions. [2021-10-29 00:00:50,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-29 00:00:50,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1659 transitions. [2021-10-29 00:00:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-29 00:00:50,294 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:50,294 INFO L513 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] [2021-10-29 00:00:50,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:50,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:50,515 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:50,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:50,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1490114989, now seen corresponding path program 1 times [2021-10-29 00:00:50,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:50,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451997819] [2021-10-29 00:00:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:50,516 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:50,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:50,517 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:50,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-29 00:00:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:51,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 00:00:51,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:51,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:52,210 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:52,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451997819] [2021-10-29 00:00:52,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451997819] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:52,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:52,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-29 00:00:52,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121805120] [2021-10-29 00:00:52,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-29 00:00:52,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:52,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-29 00:00:52,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-10-29 00:00:52,213 INFO L87 Difference]: Start difference. First operand 1246 states and 1659 transitions. Second operand has 20 states, 20 states have (on average 3.25) internal successors, (65), 14 states have internal predecessors, (65), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:00:52,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:52,479 INFO L93 Difference]: Finished difference Result 1312 states and 1768 transitions. [2021-10-29 00:00:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-29 00:00:52,480 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 14 states have internal predecessors, (65), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) Word has length 60 [2021-10-29 00:00:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:52,486 INFO L225 Difference]: With dead ends: 1312 [2021-10-29 00:00:52,486 INFO L226 Difference]: Without dead ends: 1268 [2021-10-29 00:00:52,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-10-29 00:00:52,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2021-10-29 00:00:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1252. [2021-10-29 00:00:52,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 980 states have (on average 1.2979591836734694) internal successors, (1272), 1019 states have internal predecessors, (1272), 156 states have call successors, (156), 82 states have call predecessors, (156), 115 states have return successors, (261), 156 states have call predecessors, (261), 150 states have call successors, (261) [2021-10-29 00:00:52,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1689 transitions. [2021-10-29 00:00:52,556 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1689 transitions. Word has length 60 [2021-10-29 00:00:52,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:52,556 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 1689 transitions. [2021-10-29 00:00:52,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 14 states have internal predecessors, (65), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:00:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1689 transitions. [2021-10-29 00:00:52,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-29 00:00:52,563 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:52,564 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:52,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:52,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:52,780 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:52,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:52,781 INFO L85 PathProgramCache]: Analyzing trace with hash 207330224, now seen corresponding path program 1 times [2021-10-29 00:00:52,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:52,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506304466] [2021-10-29 00:00:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:52,781 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:52,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:52,782 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:52,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-29 00:00:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:53,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:00:53,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:54,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:54,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:54,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:54,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506304466] [2021-10-29 00:00:54,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506304466] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:54,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:54,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-29 00:00:54,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458075782] [2021-10-29 00:00:54,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:00:54,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:54,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:00:54,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:54,389 INFO L87 Difference]: Start difference. First operand 1252 states and 1689 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-10-29 00:00:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:55,090 INFO L93 Difference]: Finished difference Result 1230 states and 1629 transitions. [2021-10-29 00:00:55,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:55,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 77 [2021-10-29 00:00:55,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:55,101 INFO L225 Difference]: With dead ends: 1230 [2021-10-29 00:00:55,101 INFO L226 Difference]: Without dead ends: 1230 [2021-10-29 00:00:55,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:55,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2021-10-29 00:00:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2021-10-29 00:00:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 962 states have (on average 1.2869022869022868) internal successors, (1238), 999 states have internal predecessors, (1238), 154 states have call successors, (154), 82 states have call predecessors, (154), 113 states have return successors, (237), 154 states have call predecessors, (237), 148 states have call successors, (237) [2021-10-29 00:00:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1629 transitions. [2021-10-29 00:00:55,161 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1629 transitions. Word has length 77 [2021-10-29 00:00:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:55,161 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1629 transitions. [2021-10-29 00:00:55,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-10-29 00:00:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1629 transitions. [2021-10-29 00:00:55,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-29 00:00:55,167 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:55,167 INFO L513 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] [2021-10-29 00:00:55,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:55,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:55,380 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:55,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:55,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1808459213, now seen corresponding path program 1 times [2021-10-29 00:00:55,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:55,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001596075] [2021-10-29 00:00:55,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:55,382 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:55,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:55,384 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-29 00:00:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:56,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:57,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:57,266 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:57,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001596075] [2021-10-29 00:00:57,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001596075] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:57,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:57,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-10-29 00:00:57,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361626727] [2021-10-29 00:00:57,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:00:57,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:57,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:00:57,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:57,269 INFO L87 Difference]: Start difference. First operand 1230 states and 1629 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-29 00:00:57,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:57,769 INFO L93 Difference]: Finished difference Result 1244 states and 1641 transitions. [2021-10-29 00:00:57,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:57,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 65 [2021-10-29 00:00:57,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:57,775 INFO L225 Difference]: With dead ends: 1244 [2021-10-29 00:00:57,775 INFO L226 Difference]: Without dead ends: 1244 [2021-10-29 00:00:57,776 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2021-10-29 00:00:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1230. [2021-10-29 00:00:57,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 962 states have (on average 1.2827442827442828) internal successors, (1234), 999 states have internal predecessors, (1234), 154 states have call successors, (154), 82 states have call predecessors, (154), 113 states have return successors, (237), 154 states have call predecessors, (237), 148 states have call successors, (237) [2021-10-29 00:00:57,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1625 transitions. [2021-10-29 00:00:57,815 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1625 transitions. Word has length 65 [2021-10-29 00:00:57,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:57,816 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1625 transitions. [2021-10-29 00:00:57,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-29 00:00:57,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1625 transitions. [2021-10-29 00:00:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-29 00:00:57,821 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:57,821 INFO L513 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] [2021-10-29 00:00:57,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:58,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:58,043 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:00:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash -230207487, now seen corresponding path program 1 times [2021-10-29 00:00:58,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:58,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451232285] [2021-10-29 00:00:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:58,044 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:58,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:58,045 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-29 00:00:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:59,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 00:00:59,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:59,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:00,340 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:00,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451232285] [2021-10-29 00:01:00,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451232285] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:00,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:00,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-29 00:01:00,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107946906] [2021-10-29 00:01:00,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 00:01:00,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:00,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 00:01:00,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-29 00:01:00,343 INFO L87 Difference]: Start difference. First operand 1230 states and 1625 transitions. Second operand has 22 states, 20 states have (on average 3.6) internal successors, (72), 16 states have internal predecessors, (72), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-29 00:01:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:00,921 INFO L93 Difference]: Finished difference Result 1254 states and 1654 transitions. [2021-10-29 00:01:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-29 00:01:00,922 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.6) internal successors, (72), 16 states have internal predecessors, (72), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) Word has length 67 [2021-10-29 00:01:00,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:00,926 INFO L225 Difference]: With dead ends: 1254 [2021-10-29 00:01:00,926 INFO L226 Difference]: Without dead ends: 1233 [2021-10-29 00:01:00,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-29 00:01:00,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2021-10-29 00:01:00,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1228. [2021-10-29 00:01:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 961 states have (on average 1.2809573361082207) internal successors, (1231), 998 states have internal predecessors, (1231), 153 states have call successors, (153), 82 states have call predecessors, (153), 113 states have return successors, (236), 153 states have call predecessors, (236), 147 states have call successors, (236) [2021-10-29 00:01:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1620 transitions. [2021-10-29 00:01:00,968 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1620 transitions. Word has length 67 [2021-10-29 00:01:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:00,969 INFO L470 AbstractCegarLoop]: Abstraction has 1228 states and 1620 transitions. [2021-10-29 00:01:00,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.6) internal successors, (72), 16 states have internal predecessors, (72), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-29 00:01:00,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1620 transitions. [2021-10-29 00:01:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-29 00:01:00,974 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:00,975 INFO L513 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] [2021-10-29 00:01:00,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-10-29 00:01:01,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:01,196 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:01,196 INFO L85 PathProgramCache]: Analyzing trace with hash -235488701, now seen corresponding path program 1 times [2021-10-29 00:01:01,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:01,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234783660] [2021-10-29 00:01:01,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:01,197 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:01,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:01,198 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:01,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-29 00:01:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:02,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 00:01:02,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:02,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:03,484 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:03,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234783660] [2021-10-29 00:01:03,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234783660] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:03,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:03,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-29 00:01:03,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3903178] [2021-10-29 00:01:03,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 00:01:03,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:03,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 00:01:03,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-29 00:01:03,486 INFO L87 Difference]: Start difference. First operand 1228 states and 1620 transitions. Second operand has 22 states, 20 states have (on average 3.55) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-29 00:01:04,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:04,005 INFO L93 Difference]: Finished difference Result 1252 states and 1649 transitions. [2021-10-29 00:01:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-29 00:01:04,005 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.55) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) Word has length 66 [2021-10-29 00:01:04,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:04,010 INFO L225 Difference]: With dead ends: 1252 [2021-10-29 00:01:04,010 INFO L226 Difference]: Without dead ends: 1231 [2021-10-29 00:01:04,011 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-29 00:01:04,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2021-10-29 00:01:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1226. [2021-10-29 00:01:04,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 960 states have (on average 1.2791666666666666) internal successors, (1228), 997 states have internal predecessors, (1228), 152 states have call successors, (152), 82 states have call predecessors, (152), 113 states have return successors, (235), 152 states have call predecessors, (235), 146 states have call successors, (235) [2021-10-29 00:01:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1615 transitions. [2021-10-29 00:01:04,053 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1615 transitions. Word has length 66 [2021-10-29 00:01:04,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:04,054 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 1615 transitions. [2021-10-29 00:01:04,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.55) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (12), 2 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2021-10-29 00:01:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1615 transitions. [2021-10-29 00:01:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-29 00:01:04,061 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:04,061 INFO L513 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] [2021-10-29 00:01:04,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-10-29 00:01:04,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:04,283 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:04,283 INFO L85 PathProgramCache]: Analyzing trace with hash 94481597, now seen corresponding path program 1 times [2021-10-29 00:01:04,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:04,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020482664] [2021-10-29 00:01:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:04,284 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:04,285 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:04,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-29 00:01:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:05,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 00:01:05,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:05,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:06,529 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:06,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020482664] [2021-10-29 00:01:06,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020482664] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:06,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:06,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-29 00:01:06,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028098927] [2021-10-29 00:01:06,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 00:01:06,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:06,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 00:01:06,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-29 00:01:06,531 INFO L87 Difference]: Start difference. First operand 1226 states and 1615 transitions. Second operand has 22 states, 20 states have (on average 3.5) internal successors, (70), 16 states have internal predecessors, (70), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-29 00:01:06,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:06,903 INFO L93 Difference]: Finished difference Result 1248 states and 1641 transitions. [2021-10-29 00:01:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-29 00:01:06,904 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.5) internal successors, (70), 16 states have internal predecessors, (70), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) Word has length 63 [2021-10-29 00:01:06,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:06,909 INFO L225 Difference]: With dead ends: 1248 [2021-10-29 00:01:06,910 INFO L226 Difference]: Without dead ends: 1227 [2021-10-29 00:01:06,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-29 00:01:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2021-10-29 00:01:06,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1224. [2021-10-29 00:01:06,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 959 states have (on average 1.2773722627737227) internal successors, (1225), 996 states have internal predecessors, (1225), 151 states have call successors, (151), 82 states have call predecessors, (151), 113 states have return successors, (234), 151 states have call predecessors, (234), 145 states have call successors, (234) [2021-10-29 00:01:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1610 transitions. [2021-10-29 00:01:06,951 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1610 transitions. Word has length 63 [2021-10-29 00:01:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:06,952 INFO L470 AbstractCegarLoop]: Abstraction has 1224 states and 1610 transitions. [2021-10-29 00:01:06,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.5) internal successors, (70), 16 states have internal predecessors, (70), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-29 00:01:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1610 transitions. [2021-10-29 00:01:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-29 00:01:06,958 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:06,958 INFO L513 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] [2021-10-29 00:01:06,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-10-29 00:01:07,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:07,181 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:07,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1173789694, now seen corresponding path program 1 times [2021-10-29 00:01:07,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:07,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206642470] [2021-10-29 00:01:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:07,182 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:07,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:07,184 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:07,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-29 00:01:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:08,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 00:01:08,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:08,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:09,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:09,415 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:09,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206642470] [2021-10-29 00:01:09,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206642470] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:09,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:09,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-29 00:01:09,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653685081] [2021-10-29 00:01:09,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 00:01:09,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:09,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 00:01:09,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-10-29 00:01:09,417 INFO L87 Difference]: Start difference. First operand 1224 states and 1610 transitions. Second operand has 22 states, 20 states have (on average 3.45) internal successors, (69), 16 states have internal predecessors, (69), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-29 00:01:09,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:09,782 INFO L93 Difference]: Finished difference Result 1246 states and 1636 transitions. [2021-10-29 00:01:09,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-29 00:01:09,783 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.45) internal successors, (69), 16 states have internal predecessors, (69), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) Word has length 62 [2021-10-29 00:01:09,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:09,787 INFO L225 Difference]: With dead ends: 1246 [2021-10-29 00:01:09,787 INFO L226 Difference]: Without dead ends: 1225 [2021-10-29 00:01:09,787 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-10-29 00:01:09,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2021-10-29 00:01:09,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1222. [2021-10-29 00:01:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 958 states have (on average 1.2755741127348643) internal successors, (1222), 995 states have internal predecessors, (1222), 150 states have call successors, (150), 82 states have call predecessors, (150), 113 states have return successors, (233), 150 states have call predecessors, (233), 144 states have call successors, (233) [2021-10-29 00:01:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1605 transitions. [2021-10-29 00:01:09,831 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1605 transitions. Word has length 62 [2021-10-29 00:01:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:09,832 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1605 transitions. [2021-10-29 00:01:09,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.45) internal successors, (69), 16 states have internal predecessors, (69), 6 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-29 00:01:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1605 transitions. [2021-10-29 00:01:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 00:01:09,838 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:09,838 INFO L513 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] [2021-10-29 00:01:09,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:10,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:10,061 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:10,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash 251959398, now seen corresponding path program 1 times [2021-10-29 00:01:10,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:10,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777996129] [2021-10-29 00:01:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:10,063 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:10,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:10,065 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:10,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-29 00:01:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:11,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:01:11,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:12,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:12,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:12,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777996129] [2021-10-29 00:01:12,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777996129] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:12,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:12,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-29 00:01:12,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394712857] [2021-10-29 00:01:12,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-29 00:01:12,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:12,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-29 00:01:12,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-29 00:01:12,806 INFO L87 Difference]: Start difference. First operand 1222 states and 1605 transitions. Second operand has 25 states, 25 states have (on average 3.04) internal successors, (76), 17 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:01:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:13,582 INFO L93 Difference]: Finished difference Result 1298 states and 1691 transitions. [2021-10-29 00:01:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-29 00:01:13,583 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 17 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 69 [2021-10-29 00:01:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:13,587 INFO L225 Difference]: With dead ends: 1298 [2021-10-29 00:01:13,588 INFO L226 Difference]: Without dead ends: 1234 [2021-10-29 00:01:13,588 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-29 00:01:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2021-10-29 00:01:13,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1200. [2021-10-29 00:01:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 942 states have (on average 1.276008492569002) internal successors, (1202), 979 states have internal predecessors, (1202), 146 states have call successors, (146), 82 states have call predecessors, (146), 111 states have return successors, (227), 144 states have call predecessors, (227), 140 states have call successors, (227) [2021-10-29 00:01:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1575 transitions. [2021-10-29 00:01:13,634 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1575 transitions. Word has length 69 [2021-10-29 00:01:13,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:13,634 INFO L470 AbstractCegarLoop]: Abstraction has 1200 states and 1575 transitions. [2021-10-29 00:01:13,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 17 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:01:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1575 transitions. [2021-10-29 00:01:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-29 00:01:13,640 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:13,640 INFO L513 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] [2021-10-29 00:01:13,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:13,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:13,864 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash -317898980, now seen corresponding path program 1 times [2021-10-29 00:01:13,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:13,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508949454] [2021-10-29 00:01:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:13,866 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:13,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:13,867 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:13,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-29 00:01:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:15,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:01:15,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:16,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:16,878 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:16,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508949454] [2021-10-29 00:01:16,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508949454] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:16,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:16,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-29 00:01:16,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362972445] [2021-10-29 00:01:16,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-29 00:01:16,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:16,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-29 00:01:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-29 00:01:16,881 INFO L87 Difference]: Start difference. First operand 1200 states and 1575 transitions. Second operand has 25 states, 25 states have (on average 2.8) internal successors, (70), 17 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:01:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:17,554 INFO L93 Difference]: Finished difference Result 1276 states and 1659 transitions. [2021-10-29 00:01:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-29 00:01:17,555 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 17 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 63 [2021-10-29 00:01:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:17,561 INFO L225 Difference]: With dead ends: 1276 [2021-10-29 00:01:17,561 INFO L226 Difference]: Without dead ends: 1224 [2021-10-29 00:01:17,562 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-29 00:01:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2021-10-29 00:01:17,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1190. [2021-10-29 00:01:17,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 936 states have (on average 1.2756410256410255) internal successors, (1194), 973 states have internal predecessors, (1194), 144 states have call successors, (144), 82 states have call predecessors, (144), 109 states have return successors, (223), 140 states have call predecessors, (223), 138 states have call successors, (223) [2021-10-29 00:01:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1561 transitions. [2021-10-29 00:01:17,601 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1561 transitions. Word has length 63 [2021-10-29 00:01:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:17,602 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 1561 transitions. [2021-10-29 00:01:17,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 17 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:01:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1561 transitions. [2021-10-29 00:01:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-29 00:01:17,607 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:17,607 INFO L513 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] [2021-10-29 00:01:17,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:17,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:17,830 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:17,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:17,830 INFO L85 PathProgramCache]: Analyzing trace with hash -136722259, now seen corresponding path program 1 times [2021-10-29 00:01:17,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:17,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476760009] [2021-10-29 00:01:17,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:17,831 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:17,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:17,834 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:17,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-29 00:01:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:19,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:01:19,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:19,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:19,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:20,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:20,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476760009] [2021-10-29 00:01:20,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476760009] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:20,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:20,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-29 00:01:20,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335708768] [2021-10-29 00:01:20,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-29 00:01:20,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:20,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-29 00:01:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-29 00:01:20,547 INFO L87 Difference]: Start difference. First operand 1190 states and 1561 transitions. Second operand has 25 states, 25 states have (on average 2.76) internal successors, (69), 17 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:01:21,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:21,169 INFO L93 Difference]: Finished difference Result 1266 states and 1643 transitions. [2021-10-29 00:01:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-29 00:01:21,169 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.76) internal successors, (69), 17 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 62 [2021-10-29 00:01:21,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:21,174 INFO L225 Difference]: With dead ends: 1266 [2021-10-29 00:01:21,175 INFO L226 Difference]: Without dead ends: 1214 [2021-10-29 00:01:21,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-29 00:01:21,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2021-10-29 00:01:21,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1180. [2021-10-29 00:01:21,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 930 states have (on average 1.2752688172043012) internal successors, (1186), 967 states have internal predecessors, (1186), 142 states have call successors, (142), 82 states have call predecessors, (142), 107 states have return successors, (219), 136 states have call predecessors, (219), 136 states have call successors, (219) [2021-10-29 00:01:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1547 transitions. [2021-10-29 00:01:21,221 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1547 transitions. Word has length 62 [2021-10-29 00:01:21,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:21,221 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 1547 transitions. [2021-10-29 00:01:21,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.76) internal successors, (69), 17 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:01:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1547 transitions. [2021-10-29 00:01:21,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-29 00:01:21,226 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:21,227 INFO L513 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] [2021-10-29 00:01:21,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-10-29 00:01:21,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:21,449 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:21,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2028961323, now seen corresponding path program 1 times [2021-10-29 00:01:21,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:21,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413443660] [2021-10-29 00:01:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:21,451 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:21,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:21,452 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:21,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-29 00:01:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:22,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:01:22,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:23,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:23,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:23,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413443660] [2021-10-29 00:01:23,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413443660] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:23,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:23,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:01:23,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244017473] [2021-10-29 00:01:23,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:01:23,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:23,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:01:23,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:01:23,266 INFO L87 Difference]: Start difference. First operand 1180 states and 1547 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-29 00:01:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:23,272 INFO L93 Difference]: Finished difference Result 1086 states and 1383 transitions. [2021-10-29 00:01:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:01:23,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2021-10-29 00:01:23,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:23,277 INFO L225 Difference]: With dead ends: 1086 [2021-10-29 00:01:23,277 INFO L226 Difference]: Without dead ends: 1078 [2021-10-29 00:01:23,277 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:01:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2021-10-29 00:01:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 949. [2021-10-29 00:01:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 751 states have (on average 1.25965379494008) internal successors, (946), 774 states have internal predecessors, (946), 107 states have call successors, (107), 71 states have call predecessors, (107), 90 states have return successors, (139), 109 states have call predecessors, (139), 101 states have call successors, (139) [2021-10-29 00:01:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1192 transitions. [2021-10-29 00:01:23,302 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1192 transitions. Word has length 63 [2021-10-29 00:01:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:23,302 INFO L470 AbstractCegarLoop]: Abstraction has 949 states and 1192 transitions. [2021-10-29 00:01:23,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-29 00:01:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1192 transitions. [2021-10-29 00:01:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-29 00:01:23,307 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:23,307 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:01:23,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:23,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:23,531 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:23,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash -988186886, now seen corresponding path program 1 times [2021-10-29 00:01:23,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:23,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604511432] [2021-10-29 00:01:23,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:23,533 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:23,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:23,534 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:23,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-29 00:01:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:25,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:01:25,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:25,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:25,458 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:25,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604511432] [2021-10-29 00:01:25,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604511432] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:25,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:25,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:01:25,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492714257] [2021-10-29 00:01:25,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:01:25,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:25,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:01:25,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:01:25,461 INFO L87 Difference]: Start difference. First operand 949 states and 1192 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:25,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:25,490 INFO L93 Difference]: Finished difference Result 1030 states and 1290 transitions. [2021-10-29 00:01:25,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:01:25,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2021-10-29 00:01:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:25,495 INFO L225 Difference]: With dead ends: 1030 [2021-10-29 00:01:25,495 INFO L226 Difference]: Without dead ends: 1030 [2021-10-29 00:01:25,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:01:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2021-10-29 00:01:25,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1006. [2021-10-29 00:01:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 797 states have (on average 1.2647427854454203) internal successors, (1008), 819 states have internal predecessors, (1008), 111 states have call successors, (111), 76 states have call predecessors, (111), 97 states have return successors, (146), 116 states have call predecessors, (146), 106 states have call successors, (146) [2021-10-29 00:01:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1265 transitions. [2021-10-29 00:01:25,515 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1265 transitions. Word has length 80 [2021-10-29 00:01:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:25,515 INFO L470 AbstractCegarLoop]: Abstraction has 1006 states and 1265 transitions. [2021-10-29 00:01:25,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:25,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1265 transitions. [2021-10-29 00:01:25,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-29 00:01:25,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:25,520 INFO L513 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] [2021-10-29 00:01:25,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:25,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:25,742 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:25,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1342190428, now seen corresponding path program 1 times [2021-10-29 00:01:25,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:25,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002134023] [2021-10-29 00:01:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:25,743 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:25,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:25,743 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:25,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-29 00:01:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:27,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:01:27,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:27,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:27,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:27,348 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:27,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002134023] [2021-10-29 00:01:27,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002134023] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:27,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:27,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:01:27,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137621832] [2021-10-29 00:01:27,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:01:27,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:27,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:01:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:27,350 INFO L87 Difference]: Start difference. First operand 1006 states and 1265 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:27,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:27,389 INFO L93 Difference]: Finished difference Result 1000 states and 1255 transitions. [2021-10-29 00:01:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:01:27,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-10-29 00:01:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:27,392 INFO L225 Difference]: With dead ends: 1000 [2021-10-29 00:01:27,393 INFO L226 Difference]: Without dead ends: 1000 [2021-10-29 00:01:27,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:27,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2021-10-29 00:01:27,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 1000. [2021-10-29 00:01:27,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 792 states have (on average 1.2626262626262625) internal successors, (1000), 814 states have internal predecessors, (1000), 110 states have call successors, (110), 76 states have call predecessors, (110), 97 states have return successors, (145), 115 states have call predecessors, (145), 105 states have call successors, (145) [2021-10-29 00:01:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1255 transitions. [2021-10-29 00:01:27,414 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1255 transitions. Word has length 65 [2021-10-29 00:01:27,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:27,415 INFO L470 AbstractCegarLoop]: Abstraction has 1000 states and 1255 transitions. [2021-10-29 00:01:27,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1255 transitions. [2021-10-29 00:01:27,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-29 00:01:27,419 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:27,419 INFO L513 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] [2021-10-29 00:01:27,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:27,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:27,641 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:27,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash 578164593, now seen corresponding path program 1 times [2021-10-29 00:01:27,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:27,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661217807] [2021-10-29 00:01:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:27,642 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:27,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:27,644 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:27,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-29 00:01:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:29,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:01:29,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:29,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:29,567 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:29,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661217807] [2021-10-29 00:01:29,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661217807] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:29,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:29,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:01:29,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347752577] [2021-10-29 00:01:29,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:01:29,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:29,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:01:29,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:29,568 INFO L87 Difference]: Start difference. First operand 1000 states and 1255 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:29,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:29,599 INFO L93 Difference]: Finished difference Result 1000 states and 1254 transitions. [2021-10-29 00:01:29,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:01:29,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2021-10-29 00:01:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:29,602 INFO L225 Difference]: With dead ends: 1000 [2021-10-29 00:01:29,602 INFO L226 Difference]: Without dead ends: 995 [2021-10-29 00:01:29,602 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:29,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-10-29 00:01:29,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 995. [2021-10-29 00:01:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 788 states have (on average 1.2614213197969544) internal successors, (994), 810 states have internal predecessors, (994), 109 states have call successors, (109), 76 states have call predecessors, (109), 97 states have return successors, (144), 114 states have call predecessors, (144), 104 states have call successors, (144) [2021-10-29 00:01:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1247 transitions. [2021-10-29 00:01:29,620 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1247 transitions. Word has length 67 [2021-10-29 00:01:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:29,620 INFO L470 AbstractCegarLoop]: Abstraction has 995 states and 1247 transitions. [2021-10-29 00:01:29,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1247 transitions. [2021-10-29 00:01:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-29 00:01:29,624 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:29,624 INFO L513 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] [2021-10-29 00:01:29,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2021-10-29 00:01:29,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:29,840 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:29,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash -601739544, now seen corresponding path program 1 times [2021-10-29 00:01:29,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:29,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479793852] [2021-10-29 00:01:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:29,841 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:29,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:29,843 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:29,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-29 00:01:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:31,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:01:31,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:31,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:32,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:32,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:32,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479793852] [2021-10-29 00:01:32,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479793852] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:32,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:32,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:01:32,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904863] [2021-10-29 00:01:32,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:01:32,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:32,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:01:32,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:32,199 INFO L87 Difference]: Start difference. First operand 995 states and 1247 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-29 00:01:32,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:32,658 INFO L93 Difference]: Finished difference Result 1003 states and 1251 transitions. [2021-10-29 00:01:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:01:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) Word has length 68 [2021-10-29 00:01:32,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:32,660 INFO L225 Difference]: With dead ends: 1003 [2021-10-29 00:01:32,660 INFO L226 Difference]: Without dead ends: 1003 [2021-10-29 00:01:32,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:01:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2021-10-29 00:01:32,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 995. [2021-10-29 00:01:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 788 states have (on average 1.2588832487309645) internal successors, (992), 810 states have internal predecessors, (992), 109 states have call successors, (109), 76 states have call predecessors, (109), 97 states have return successors, (144), 114 states have call predecessors, (144), 104 states have call successors, (144) [2021-10-29 00:01:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1245 transitions. [2021-10-29 00:01:32,676 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1245 transitions. Word has length 68 [2021-10-29 00:01:32,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:32,676 INFO L470 AbstractCegarLoop]: Abstraction has 995 states and 1245 transitions. [2021-10-29 00:01:32,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-29 00:01:32,677 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1245 transitions. [2021-10-29 00:01:32,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-29 00:01:32,680 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:32,680 INFO L513 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] [2021-10-29 00:01:32,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:32,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:32,901 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash -275884697, now seen corresponding path program 1 times [2021-10-29 00:01:32,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:32,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710590422] [2021-10-29 00:01:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:32,903 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:32,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:32,904 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:32,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-10-29 00:01:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:34,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:01:34,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:34,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:34,663 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:34,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710590422] [2021-10-29 00:01:34,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710590422] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:34,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:34,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 00:01:34,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764280242] [2021-10-29 00:01:34,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:01:34,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:34,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:01:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:01:34,665 INFO L87 Difference]: Start difference. First operand 995 states and 1245 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:01:34,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:34,679 INFO L93 Difference]: Finished difference Result 995 states and 1241 transitions. [2021-10-29 00:01:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:01:34,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 72 [2021-10-29 00:01:34,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:34,683 INFO L225 Difference]: With dead ends: 995 [2021-10-29 00:01:34,683 INFO L226 Difference]: Without dead ends: 995 [2021-10-29 00:01:34,684 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:01:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-10-29 00:01:34,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 995. [2021-10-29 00:01:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 788 states have (on average 1.2538071065989849) internal successors, (988), 810 states have internal predecessors, (988), 109 states have call successors, (109), 76 states have call predecessors, (109), 97 states have return successors, (144), 114 states have call predecessors, (144), 104 states have call successors, (144) [2021-10-29 00:01:34,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1241 transitions. [2021-10-29 00:01:34,707 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1241 transitions. Word has length 72 [2021-10-29 00:01:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:34,708 INFO L470 AbstractCegarLoop]: Abstraction has 995 states and 1241 transitions. [2021-10-29 00:01:34,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-10-29 00:01:34,708 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1241 transitions. [2021-10-29 00:01:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-29 00:01:34,712 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:34,712 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:01:34,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:34,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:34,936 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:34,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:34,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2137250320, now seen corresponding path program 1 times [2021-10-29 00:01:34,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:34,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965254260] [2021-10-29 00:01:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:34,937 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:34,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:34,939 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:34,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-10-29 00:01:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:36,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 00:01:36,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:36,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:37,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:37,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965254260] [2021-10-29 00:01:37,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965254260] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:37,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:37,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-29 00:01:37,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900557158] [2021-10-29 00:01:37,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 00:01:37,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:37,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:01:37,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:01:37,320 INFO L87 Difference]: Start difference. First operand 995 states and 1241 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-29 00:01:37,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:37,501 INFO L93 Difference]: Finished difference Result 1001 states and 1248 transitions. [2021-10-29 00:01:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:01:37,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 74 [2021-10-29 00:01:37,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:37,505 INFO L225 Difference]: With dead ends: 1001 [2021-10-29 00:01:37,505 INFO L226 Difference]: Without dead ends: 1001 [2021-10-29 00:01:37,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:01:37,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-10-29 00:01:37,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 995. [2021-10-29 00:01:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 788 states have (on average 1.2538071065989849) internal successors, (988), 810 states have internal predecessors, (988), 109 states have call successors, (109), 76 states have call predecessors, (109), 97 states have return successors, (143), 114 states have call predecessors, (143), 104 states have call successors, (143) [2021-10-29 00:01:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1240 transitions. [2021-10-29 00:01:37,530 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1240 transitions. Word has length 74 [2021-10-29 00:01:37,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:37,530 INFO L470 AbstractCegarLoop]: Abstraction has 995 states and 1240 transitions. [2021-10-29 00:01:37,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-29 00:01:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1240 transitions. [2021-10-29 00:01:37,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-29 00:01:37,534 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:37,534 INFO L513 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] [2021-10-29 00:01:37,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:37,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:37,748 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:37,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:37,749 INFO L85 PathProgramCache]: Analyzing trace with hash -151974564, now seen corresponding path program 1 times [2021-10-29 00:01:37,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:37,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957545064] [2021-10-29 00:01:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:37,749 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:37,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:37,750 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:37,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-10-29 00:01:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:39,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 00:01:39,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:39,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:39,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:39,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:39,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957545064] [2021-10-29 00:01:39,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957545064] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:39,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:39,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-29 00:01:39,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138723876] [2021-10-29 00:01:39,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 00:01:39,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:39,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:01:39,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:01:39,996 INFO L87 Difference]: Start difference. First operand 995 states and 1240 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-10-29 00:01:40,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:40,122 INFO L93 Difference]: Finished difference Result 1001 states and 1247 transitions. [2021-10-29 00:01:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:01:40,123 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 70 [2021-10-29 00:01:40,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:40,125 INFO L225 Difference]: With dead ends: 1001 [2021-10-29 00:01:40,125 INFO L226 Difference]: Without dead ends: 1001 [2021-10-29 00:01:40,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:01:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-10-29 00:01:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 994. [2021-10-29 00:01:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 788 states have (on average 1.2538071065989849) internal successors, (988), 809 states have internal predecessors, (988), 108 states have call successors, (108), 76 states have call predecessors, (108), 97 states have return successors, (141), 114 states have call predecessors, (141), 103 states have call successors, (141) [2021-10-29 00:01:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1237 transitions. [2021-10-29 00:01:40,138 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1237 transitions. Word has length 70 [2021-10-29 00:01:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:40,138 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1237 transitions. [2021-10-29 00:01:40,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-10-29 00:01:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1237 transitions. [2021-10-29 00:01:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-29 00:01:40,141 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:40,141 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:01:40,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-10-29 00:01:40,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:40,343 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:40,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:40,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1853047052, now seen corresponding path program 1 times [2021-10-29 00:01:40,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:40,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503306266] [2021-10-29 00:01:40,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:40,344 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:40,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:40,345 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:40,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-10-29 00:01:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:41,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:01:41,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:42,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:42,756 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:42,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503306266] [2021-10-29 00:01:42,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503306266] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:42,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:42,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 26 [2021-10-29 00:01:42,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368872015] [2021-10-29 00:01:42,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-29 00:01:42,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-29 00:01:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-10-29 00:01:42,758 INFO L87 Difference]: Start difference. First operand 994 states and 1237 transitions. Second operand has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 18 states have internal predecessors, (80), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) [2021-10-29 00:01:43,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:43,059 INFO L93 Difference]: Finished difference Result 1016 states and 1263 transitions. [2021-10-29 00:01:43,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 00:01:43,060 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 18 states have internal predecessors, (80), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) Word has length 74 [2021-10-29 00:01:43,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:43,062 INFO L225 Difference]: With dead ends: 1016 [2021-10-29 00:01:43,062 INFO L226 Difference]: Without dead ends: 986 [2021-10-29 00:01:43,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-29 00:01:43,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2021-10-29 00:01:43,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 983. [2021-10-29 00:01:43,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 781 states have (on average 1.2535211267605635) internal successors, (979), 801 states have internal predecessors, (979), 104 states have call successors, (104), 76 states have call predecessors, (104), 97 states have return successors, (136), 111 states have call predecessors, (136), 99 states have call successors, (136) [2021-10-29 00:01:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1219 transitions. [2021-10-29 00:01:43,081 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1219 transitions. Word has length 74 [2021-10-29 00:01:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:43,081 INFO L470 AbstractCegarLoop]: Abstraction has 983 states and 1219 transitions. [2021-10-29 00:01:43,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 18 states have internal predecessors, (80), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) [2021-10-29 00:01:43,082 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1219 transitions. [2021-10-29 00:01:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-29 00:01:43,085 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:43,085 INFO L513 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] [2021-10-29 00:01:43,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:43,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:43,300 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:43,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1110325088, now seen corresponding path program 1 times [2021-10-29 00:01:43,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:43,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33875525] [2021-10-29 00:01:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:43,301 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:43,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:43,302 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:43,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-10-29 00:01:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:44,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:01:44,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:45,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:45,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:45,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33875525] [2021-10-29 00:01:45,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33875525] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:45,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:45,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 26 [2021-10-29 00:01:45,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645080326] [2021-10-29 00:01:45,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-29 00:01:45,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-29 00:01:45,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-10-29 00:01:45,745 INFO L87 Difference]: Start difference. First operand 983 states and 1219 transitions. Second operand has 26 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 18 states have internal predecessors, (77), 6 states have call successors, (12), 2 states have call predecessors, (12), 9 states have return successors, (13), 11 states have call predecessors, (13), 5 states have call successors, (13) [2021-10-29 00:01:46,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:46,011 INFO L93 Difference]: Finished difference Result 1007 states and 1248 transitions. [2021-10-29 00:01:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 00:01:46,012 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 18 states have internal predecessors, (77), 6 states have call successors, (12), 2 states have call predecessors, (12), 9 states have return successors, (13), 11 states have call predecessors, (13), 5 states have call successors, (13) Word has length 70 [2021-10-29 00:01:46,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:46,015 INFO L225 Difference]: With dead ends: 1007 [2021-10-29 00:01:46,015 INFO L226 Difference]: Without dead ends: 982 [2021-10-29 00:01:46,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-29 00:01:46,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2021-10-29 00:01:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 979. [2021-10-29 00:01:46,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 778 states have (on average 1.2532133676092545) internal successors, (975), 798 states have internal predecessors, (975), 103 states have call successors, (103), 76 states have call predecessors, (103), 97 states have return successors, (135), 110 states have call predecessors, (135), 98 states have call successors, (135) [2021-10-29 00:01:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1213 transitions. [2021-10-29 00:01:46,034 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1213 transitions. Word has length 70 [2021-10-29 00:01:46,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:46,034 INFO L470 AbstractCegarLoop]: Abstraction has 979 states and 1213 transitions. [2021-10-29 00:01:46,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 18 states have internal predecessors, (77), 6 states have call successors, (12), 2 states have call predecessors, (12), 9 states have return successors, (13), 11 states have call predecessors, (13), 5 states have call successors, (13) [2021-10-29 00:01:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1213 transitions. [2021-10-29 00:01:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 00:01:46,037 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:46,038 INFO L513 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] [2021-10-29 00:01:46,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:46,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:46,252 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:46,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash -402452041, now seen corresponding path program 1 times [2021-10-29 00:01:46,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:46,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62601578] [2021-10-29 00:01:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:46,253 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:46,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:46,254 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:46,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-10-29 00:01:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:47,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:01:47,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:48,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:48,322 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:48,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62601578] [2021-10-29 00:01:48,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62601578] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:48,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:48,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 00:01:48,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556598682] [2021-10-29 00:01:48,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 00:01:48,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:48,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 00:01:48,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 00:01:48,325 INFO L87 Difference]: Start difference. First operand 979 states and 1213 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:48,471 INFO L93 Difference]: Finished difference Result 984 states and 1219 transitions. [2021-10-29 00:01:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:01:48,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2021-10-29 00:01:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:48,475 INFO L225 Difference]: With dead ends: 984 [2021-10-29 00:01:48,476 INFO L226 Difference]: Without dead ends: 984 [2021-10-29 00:01:48,476 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:01:48,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2021-10-29 00:01:48,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 977. [2021-10-29 00:01:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 776 states have (on average 1.2525773195876289) internal successors, (972), 796 states have internal predecessors, (972), 103 states have call successors, (103), 76 states have call predecessors, (103), 97 states have return successors, (135), 110 states have call predecessors, (135), 98 states have call successors, (135) [2021-10-29 00:01:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1210 transitions. [2021-10-29 00:01:48,500 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1210 transitions. Word has length 69 [2021-10-29 00:01:48,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:48,501 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1210 transitions. [2021-10-29 00:01:48,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1210 transitions. [2021-10-29 00:01:48,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 00:01:48,504 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:48,505 INFO L513 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] [2021-10-29 00:01:48,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:48,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:48,716 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:48,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:48,717 INFO L85 PathProgramCache]: Analyzing trace with hash -911925131, now seen corresponding path program 1 times [2021-10-29 00:01:48,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:48,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100091807] [2021-10-29 00:01:48,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:48,718 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:48,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:48,720 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:48,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-10-29 00:01:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:50,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 00:01:50,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:51,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:51,568 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:51,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100091807] [2021-10-29 00:01:51,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100091807] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:51,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:51,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-29 00:01:51,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988177086] [2021-10-29 00:01:51,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-29 00:01:51,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:51,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-29 00:01:51,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-10-29 00:01:51,570 INFO L87 Difference]: Start difference. First operand 977 states and 1210 transitions. Second operand has 20 states, 20 states have (on average 3.8) internal successors, (76), 14 states have internal predecessors, (76), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:01:51,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:51,782 INFO L93 Difference]: Finished difference Result 1001 states and 1238 transitions. [2021-10-29 00:01:51,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 00:01:51,783 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 14 states have internal predecessors, (76), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2021-10-29 00:01:51,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:51,786 INFO L225 Difference]: With dead ends: 1001 [2021-10-29 00:01:51,786 INFO L226 Difference]: Without dead ends: 974 [2021-10-29 00:01:51,788 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-10-29 00:01:51,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2021-10-29 00:01:51,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2021-10-29 00:01:51,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 774 states have (on average 1.2506459948320414) internal successors, (968), 794 states have internal predecessors, (968), 102 states have call successors, (102), 76 states have call predecessors, (102), 97 states have return successors, (134), 109 states have call predecessors, (134), 97 states have call successors, (134) [2021-10-29 00:01:51,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1204 transitions. [2021-10-29 00:01:51,837 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1204 transitions. Word has length 69 [2021-10-29 00:01:51,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:51,839 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1204 transitions. [2021-10-29 00:01:51,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 14 states have internal predecessors, (76), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-10-29 00:01:51,839 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1204 transitions. [2021-10-29 00:01:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 00:01:51,849 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:51,849 INFO L513 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] [2021-10-29 00:01:51,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:52,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:52,073 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:52,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:52,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1408920812, now seen corresponding path program 1 times [2021-10-29 00:01:52,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:52,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822696499] [2021-10-29 00:01:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:52,074 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:52,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:52,076 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:52,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-10-29 00:01:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:54,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:01:54,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:54,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:54,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:54,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822696499] [2021-10-29 00:01:54,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822696499] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:54,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:54,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:01:54,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900389949] [2021-10-29 00:01:54,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:01:54,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:54,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:01:54,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:54,727 INFO L87 Difference]: Start difference. First operand 974 states and 1204 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:54,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:54,777 INFO L93 Difference]: Finished difference Result 974 states and 1203 transitions. [2021-10-29 00:01:54,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:01:54,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2021-10-29 00:01:54,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:54,781 INFO L225 Difference]: With dead ends: 974 [2021-10-29 00:01:54,781 INFO L226 Difference]: Without dead ends: 969 [2021-10-29 00:01:54,781 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:54,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2021-10-29 00:01:54,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2021-10-29 00:01:54,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 770 states have (on average 1.2493506493506494) internal successors, (962), 790 states have internal predecessors, (962), 101 states have call successors, (101), 76 states have call predecessors, (101), 97 states have return successors, (133), 108 states have call predecessors, (133), 96 states have call successors, (133) [2021-10-29 00:01:54,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1196 transitions. [2021-10-29 00:01:54,809 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1196 transitions. Word has length 69 [2021-10-29 00:01:54,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:54,810 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 1196 transitions. [2021-10-29 00:01:54,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:01:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1196 transitions. [2021-10-29 00:01:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 00:01:54,812 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:54,812 INFO L513 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] [2021-10-29 00:01:54,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:55,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:55,029 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:55,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:55,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2114383891, now seen corresponding path program 1 times [2021-10-29 00:01:55,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:55,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6694200] [2021-10-29 00:01:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:55,030 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:55,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:55,030 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:55,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-10-29 00:01:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:56,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 00:01:56,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:01:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:57,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:57,586 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:57,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6694200] [2021-10-29 00:01:57,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6694200] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:57,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:57,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 21 [2021-10-29 00:01:57,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513275186] [2021-10-29 00:01:57,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-29 00:01:57,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:57,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-29 00:01:57,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-10-29 00:01:57,588 INFO L87 Difference]: Start difference. First operand 969 states and 1196 transitions. Second operand has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 15 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (10), 7 states have call predecessors, (10), 1 states have call successors, (10) [2021-10-29 00:01:57,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:57,982 INFO L93 Difference]: Finished difference Result 1053 states and 1284 transitions. [2021-10-29 00:01:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-29 00:01:57,992 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 15 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (10), 7 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2021-10-29 00:01:57,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:57,995 INFO L225 Difference]: With dead ends: 1053 [2021-10-29 00:01:57,995 INFO L226 Difference]: Without dead ends: 914 [2021-10-29 00:01:57,995 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-29 00:01:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-10-29 00:01:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 902. [2021-10-29 00:01:58,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 715 states have (on average 1.2461538461538462) internal successors, (891), 732 states have internal predecessors, (891), 99 states have call successors, (99), 74 states have call predecessors, (99), 87 states have return successors, (123), 99 states have call predecessors, (123), 94 states have call successors, (123) [2021-10-29 00:01:58,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1113 transitions. [2021-10-29 00:01:58,010 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1113 transitions. Word has length 69 [2021-10-29 00:01:58,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:58,011 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1113 transitions. [2021-10-29 00:01:58,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 15 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (10), 7 states have call predecessors, (10), 1 states have call successors, (10) [2021-10-29 00:01:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1113 transitions. [2021-10-29 00:01:58,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-29 00:01:58,013 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:58,013 INFO L513 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] [2021-10-29 00:01:58,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-10-29 00:01:58,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:58,235 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:01:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1733287926, now seen corresponding path program 1 times [2021-10-29 00:01:58,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:01:58,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416140777] [2021-10-29 00:01:58,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:58,237 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:01:58,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:01:58,238 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:01:58,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-10-29 00:01:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:59,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:01:59,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:00,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:00,357 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:00,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416140777] [2021-10-29 00:02:00,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416140777] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:00,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:00,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:02:00,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448956318] [2021-10-29 00:02:00,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:02:00,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:00,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:02:00,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:00,359 INFO L87 Difference]: Start difference. First operand 902 states and 1113 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-29 00:02:00,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:00,387 INFO L93 Difference]: Finished difference Result 905 states and 1116 transitions. [2021-10-29 00:02:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:02:00,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2021-10-29 00:02:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:00,389 INFO L225 Difference]: With dead ends: 905 [2021-10-29 00:02:00,389 INFO L226 Difference]: Without dead ends: 898 [2021-10-29 00:02:00,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-10-29 00:02:00,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 895. [2021-10-29 00:02:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 709 states have (on average 1.2468265162200283) internal successors, (884), 726 states have internal predecessors, (884), 98 states have call successors, (98), 74 states have call predecessors, (98), 87 states have return successors, (121), 98 states have call predecessors, (121), 93 states have call successors, (121) [2021-10-29 00:02:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1103 transitions. [2021-10-29 00:02:00,399 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1103 transitions. Word has length 71 [2021-10-29 00:02:00,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:00,399 INFO L470 AbstractCegarLoop]: Abstraction has 895 states and 1103 transitions. [2021-10-29 00:02:00,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-29 00:02:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1103 transitions. [2021-10-29 00:02:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-29 00:02:00,401 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:00,401 INFO L513 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] [2021-10-29 00:02:00,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-10-29 00:02:00,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:00,601 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:00,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:00,602 INFO L85 PathProgramCache]: Analyzing trace with hash -352299179, now seen corresponding path program 1 times [2021-10-29 00:02:00,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:00,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676218072] [2021-10-29 00:02:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:00,602 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:00,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:00,603 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:00,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-10-29 00:02:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:02,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:02:02,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:02,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:02,668 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:02,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676218072] [2021-10-29 00:02:02,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676218072] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:02,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:02,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:02:02,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19006678] [2021-10-29 00:02:02,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:02:02,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:02,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:02:02,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:02,670 INFO L87 Difference]: Start difference. First operand 895 states and 1103 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-29 00:02:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:02,701 INFO L93 Difference]: Finished difference Result 898 states and 1106 transitions. [2021-10-29 00:02:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:02:02,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2021-10-29 00:02:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:02,703 INFO L225 Difference]: With dead ends: 898 [2021-10-29 00:02:02,703 INFO L226 Difference]: Without dead ends: 892 [2021-10-29 00:02:02,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:02,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2021-10-29 00:02:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 889. [2021-10-29 00:02:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 704 states have (on average 1.2471590909090908) internal successors, (878), 721 states have internal predecessors, (878), 97 states have call successors, (97), 74 states have call predecessors, (97), 87 states have return successors, (120), 97 states have call predecessors, (120), 92 states have call successors, (120) [2021-10-29 00:02:02,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1095 transitions. [2021-10-29 00:02:02,718 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1095 transitions. Word has length 71 [2021-10-29 00:02:02,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:02,719 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1095 transitions. [2021-10-29 00:02:02,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-29 00:02:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1095 transitions. [2021-10-29 00:02:02,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-29 00:02:02,721 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:02,721 INFO L513 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] [2021-10-29 00:02:02,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (55)] Ended with exit code 0 [2021-10-29 00:02:02,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:02,932 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash 893345963, now seen corresponding path program 1 times [2021-10-29 00:02:02,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:02,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717080199] [2021-10-29 00:02:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:02,933 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:02,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:02,934 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:02,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-10-29 00:02:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:04,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:02:04,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:04,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:04,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:04,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:04,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717080199] [2021-10-29 00:02:04,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717080199] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:04,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:04,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 00:02:04,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343139189] [2021-10-29 00:02:04,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:02:04,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:04,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:02:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:02:04,996 INFO L87 Difference]: Start difference. First operand 889 states and 1095 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-29 00:02:05,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:05,017 INFO L93 Difference]: Finished difference Result 897 states and 1101 transitions. [2021-10-29 00:02:05,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:02:05,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-10-29 00:02:05,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:05,026 INFO L225 Difference]: With dead ends: 897 [2021-10-29 00:02:05,027 INFO L226 Difference]: Without dead ends: 891 [2021-10-29 00:02:05,027 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:02:05,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-10-29 00:02:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 889. [2021-10-29 00:02:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 704 states have (on average 1.2443181818181819) internal successors, (876), 721 states have internal predecessors, (876), 97 states have call successors, (97), 74 states have call predecessors, (97), 87 states have return successors, (120), 97 states have call predecessors, (120), 92 states have call successors, (120) [2021-10-29 00:02:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1093 transitions. [2021-10-29 00:02:05,041 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1093 transitions. Word has length 71 [2021-10-29 00:02:05,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:05,041 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1093 transitions. [2021-10-29 00:02:05,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-29 00:02:05,042 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1093 transitions. [2021-10-29 00:02:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-29 00:02:05,043 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:05,044 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:02:05,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (56)] Ended with exit code 0 [2021-10-29 00:02:05,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:05,264 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:05,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:05,265 INFO L85 PathProgramCache]: Analyzing trace with hash -955000686, now seen corresponding path program 1 times [2021-10-29 00:02:05,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:05,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332787043] [2021-10-29 00:02:05,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:05,265 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:05,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:05,266 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:05,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-10-29 00:02:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:07,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 00:02:07,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:07,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:07,567 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:07,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332787043] [2021-10-29 00:02:07,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332787043] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:07,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:07,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-29 00:02:07,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889492868] [2021-10-29 00:02:07,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 00:02:07,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:07,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:02:07,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:02:07,569 INFO L87 Difference]: Start difference. First operand 889 states and 1093 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-29 00:02:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:07,646 INFO L93 Difference]: Finished difference Result 884 states and 1083 transitions. [2021-10-29 00:02:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:02:07,646 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 77 [2021-10-29 00:02:07,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:07,648 INFO L225 Difference]: With dead ends: 884 [2021-10-29 00:02:07,648 INFO L226 Difference]: Without dead ends: 879 [2021-10-29 00:02:07,648 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:02:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2021-10-29 00:02:07,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 877. [2021-10-29 00:02:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 695 states have (on average 1.2402877697841728) internal successors, (862), 710 states have internal predecessors, (862), 95 states have call successors, (95), 74 states have call predecessors, (95), 86 states have return successors, (117), 96 states have call predecessors, (117), 90 states have call successors, (117) [2021-10-29 00:02:07,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1074 transitions. [2021-10-29 00:02:07,659 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1074 transitions. Word has length 77 [2021-10-29 00:02:07,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:07,659 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1074 transitions. [2021-10-29 00:02:07,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-29 00:02:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1074 transitions. [2021-10-29 00:02:07,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-29 00:02:07,662 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:07,662 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:02:07,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-10-29 00:02:07,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:07,876 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash -253400812, now seen corresponding path program 1 times [2021-10-29 00:02:07,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:07,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215040951] [2021-10-29 00:02:07,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:07,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:07,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:07,879 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:07,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-10-29 00:02:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:09,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:02:09,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:10,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:10,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:10,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:10,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215040951] [2021-10-29 00:02:10,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215040951] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:10,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:10,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 26 [2021-10-29 00:02:10,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995724758] [2021-10-29 00:02:10,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-29 00:02:10,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-29 00:02:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-10-29 00:02:10,738 INFO L87 Difference]: Start difference. First operand 877 states and 1074 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 18 states have internal predecessors, (85), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) [2021-10-29 00:02:10,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:10,976 INFO L93 Difference]: Finished difference Result 896 states and 1096 transitions. [2021-10-29 00:02:10,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-29 00:02:10,977 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 18 states have internal predecessors, (85), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) Word has length 77 [2021-10-29 00:02:10,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:10,978 INFO L225 Difference]: With dead ends: 896 [2021-10-29 00:02:10,979 INFO L226 Difference]: Without dead ends: 863 [2021-10-29 00:02:10,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-10-29 00:02:10,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2021-10-29 00:02:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 859. [2021-10-29 00:02:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 682 states have (on average 1.2419354838709677) internal successors, (847), 696 states have internal predecessors, (847), 90 states have call successors, (90), 73 states have call predecessors, (90), 86 states have return successors, (111), 93 states have call predecessors, (111), 85 states have call successors, (111) [2021-10-29 00:02:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1048 transitions. [2021-10-29 00:02:10,992 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1048 transitions. Word has length 77 [2021-10-29 00:02:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:10,992 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1048 transitions. [2021-10-29 00:02:10,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 18 states have internal predecessors, (85), 6 states have call successors, (13), 2 states have call predecessors, (13), 9 states have return successors, (14), 11 states have call predecessors, (14), 5 states have call successors, (14) [2021-10-29 00:02:10,993 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1048 transitions. [2021-10-29 00:02:10,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-29 00:02:10,994 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:10,994 INFO L513 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] [2021-10-29 00:02:11,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-10-29 00:02:11,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:11,195 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:11,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash 590470428, now seen corresponding path program 1 times [2021-10-29 00:02:11,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:11,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336685860] [2021-10-29 00:02:11,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:11,200 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:11,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:11,201 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:11,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-10-29 00:02:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:13,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:02:13,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:13,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:13,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:13,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:13,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336685860] [2021-10-29 00:02:13,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336685860] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:13,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:13,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:02:13,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778563484] [2021-10-29 00:02:13,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:02:13,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:02:13,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:13,980 INFO L87 Difference]: Start difference. First operand 859 states and 1048 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-29 00:02:13,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:13,996 INFO L93 Difference]: Finished difference Result 846 states and 1032 transitions. [2021-10-29 00:02:13,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:02:13,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2021-10-29 00:02:13,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:13,998 INFO L225 Difference]: With dead ends: 846 [2021-10-29 00:02:13,998 INFO L226 Difference]: Without dead ends: 831 [2021-10-29 00:02:13,999 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:14,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-10-29 00:02:14,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 831. [2021-10-29 00:02:14,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 660 states have (on average 1.240909090909091) internal successors, (819), 674 states have internal predecessors, (819), 86 states have call successors, (86), 71 states have call predecessors, (86), 84 states have return successors, (107), 89 states have call predecessors, (107), 81 states have call successors, (107) [2021-10-29 00:02:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1012 transitions. [2021-10-29 00:02:14,011 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1012 transitions. Word has length 73 [2021-10-29 00:02:14,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:14,011 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1012 transitions. [2021-10-29 00:02:14,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-29 00:02:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1012 transitions. [2021-10-29 00:02:14,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-29 00:02:14,013 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:14,013 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:02:14,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-10-29 00:02:14,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:14,214 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:14,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:14,214 INFO L85 PathProgramCache]: Analyzing trace with hash 540964971, now seen corresponding path program 1 times [2021-10-29 00:02:14,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:14,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443884863] [2021-10-29 00:02:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:14,215 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:14,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:14,216 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:14,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-10-29 00:02:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:16,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:02:16,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:17,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:17,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:17,816 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:17,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443884863] [2021-10-29 00:02:17,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443884863] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:17,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:17,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-29 00:02:17,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076820580] [2021-10-29 00:02:17,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-29 00:02:17,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:17,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-29 00:02:17,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-29 00:02:17,818 INFO L87 Difference]: Start difference. First operand 831 states and 1012 transitions. Second operand has 25 states, 25 states have (on average 3.36) internal successors, (84), 17 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 9 states have return successors, (12), 9 states have call predecessors, (12), 1 states have call successors, (12) [2021-10-29 00:02:18,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:18,505 INFO L93 Difference]: Finished difference Result 897 states and 1082 transitions. [2021-10-29 00:02:18,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-29 00:02:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.36) internal successors, (84), 17 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 9 states have return successors, (12), 9 states have call predecessors, (12), 1 states have call successors, (12) Word has length 79 [2021-10-29 00:02:18,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:18,507 INFO L225 Difference]: With dead ends: 897 [2021-10-29 00:02:18,507 INFO L226 Difference]: Without dead ends: 815 [2021-10-29 00:02:18,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-29 00:02:18,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-10-29 00:02:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 558. [2021-10-29 00:02:18,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 443 states have (on average 1.1963882618510158) internal successors, (530), 453 states have internal predecessors, (530), 58 states have call successors, (58), 49 states have call predecessors, (58), 56 states have return successors, (69), 59 states have call predecessors, (69), 53 states have call successors, (69) [2021-10-29 00:02:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 657 transitions. [2021-10-29 00:02:18,520 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 657 transitions. Word has length 79 [2021-10-29 00:02:18,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:18,521 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 657 transitions. [2021-10-29 00:02:18,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.36) internal successors, (84), 17 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 9 states have return successors, (12), 9 states have call predecessors, (12), 1 states have call successors, (12) [2021-10-29 00:02:18,521 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 657 transitions. [2021-10-29 00:02:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-29 00:02:18,522 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:18,522 INFO L513 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] [2021-10-29 00:02:18,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-10-29 00:02:18,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:18,723 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2040120255, now seen corresponding path program 1 times [2021-10-29 00:02:18,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:18,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848351024] [2021-10-29 00:02:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:18,724 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:18,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:18,725 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:18,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-10-29 00:02:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:20,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 00:02:20,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:21,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:21,618 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:21,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848351024] [2021-10-29 00:02:21,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848351024] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:21,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:21,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-10-29 00:02:21,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944290261] [2021-10-29 00:02:21,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-29 00:02:21,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:21,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-29 00:02:21,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-10-29 00:02:21,620 INFO L87 Difference]: Start difference. First operand 558 states and 657 transitions. Second operand has 25 states, 25 states have (on average 3.16) internal successors, (79), 17 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:02:22,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:22,106 INFO L93 Difference]: Finished difference Result 600 states and 699 transitions. [2021-10-29 00:02:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-29 00:02:22,107 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 17 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2021-10-29 00:02:22,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:22,108 INFO L225 Difference]: With dead ends: 600 [2021-10-29 00:02:22,108 INFO L226 Difference]: Without dead ends: 475 [2021-10-29 00:02:22,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-10-29 00:02:22,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-10-29 00:02:22,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 466. [2021-10-29 00:02:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 367 states have (on average 1.2043596730245232) internal successors, (442), 374 states have internal predecessors, (442), 51 states have call successors, (51), 43 states have call predecessors, (51), 47 states have return successors, (59), 51 states have call predecessors, (59), 47 states have call successors, (59) [2021-10-29 00:02:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 552 transitions. [2021-10-29 00:02:22,113 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 552 transitions. Word has length 72 [2021-10-29 00:02:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:22,113 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 552 transitions. [2021-10-29 00:02:22,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 17 states have internal predecessors, (79), 2 states have call successors, (9), 2 states have call predecessors, (9), 9 states have return successors, (11), 9 states have call predecessors, (11), 1 states have call successors, (11) [2021-10-29 00:02:22,114 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 552 transitions. [2021-10-29 00:02:22,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-29 00:02:22,114 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:22,114 INFO L513 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] [2021-10-29 00:02:22,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2021-10-29 00:02:22,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:22,315 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:22,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:22,315 INFO L85 PathProgramCache]: Analyzing trace with hash -731464723, now seen corresponding path program 1 times [2021-10-29 00:02:22,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:22,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594689975] [2021-10-29 00:02:22,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:22,316 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:22,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:22,317 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:22,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-10-29 00:02:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:02:24,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:02:24,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:02:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:24,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:02:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:02:24,658 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:02:24,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594689975] [2021-10-29 00:02:24,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594689975] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:02:24,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:02:24,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:02:24,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299790292] [2021-10-29 00:02:24,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:02:24,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:02:24,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:02:24,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:24,659 INFO L87 Difference]: Start difference. First operand 466 states and 552 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:02:24,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:02:24,681 INFO L93 Difference]: Finished difference Result 464 states and 548 transitions. [2021-10-29 00:02:24,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:02:24,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2021-10-29 00:02:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:02:24,682 INFO L225 Difference]: With dead ends: 464 [2021-10-29 00:02:24,683 INFO L226 Difference]: Without dead ends: 456 [2021-10-29 00:02:24,683 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:02:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-10-29 00:02:24,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-10-29 00:02:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 358 states have (on average 1.2039106145251397) internal successors, (431), 365 states have internal predecessors, (431), 50 states have call successors, (50), 43 states have call predecessors, (50), 47 states have return successors, (57), 50 states have call predecessors, (57), 46 states have call successors, (57) [2021-10-29 00:02:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 538 transitions. [2021-10-29 00:02:24,688 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 538 transitions. Word has length 73 [2021-10-29 00:02:24,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:02:24,688 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 538 transitions. [2021-10-29 00:02:24,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-29 00:02:24,688 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 538 transitions. [2021-10-29 00:02:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-29 00:02:24,689 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:02:24,689 INFO L513 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] [2021-10-29 00:02:24,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2021-10-29 00:02:24,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:24,889 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-29 00:02:24,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:02:24,890 INFO L85 PathProgramCache]: Analyzing trace with hash -586736919, now seen corresponding path program 1 times [2021-10-29 00:02:24,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:02:24,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832898617] [2021-10-29 00:02:24,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:02:24,890 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:02:24,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:02:24,891 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:02:24,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2021-10-29 00:02:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:26,861 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:02:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:02:27,222 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-29 00:02:27,223 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 00:02:27,224 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 00:02:27,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-29 00:02:27,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2021-10-29 00:02:27,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:02:27,438 INFO L731 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:02:27,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:02:27,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:02:27 BoogieIcfgContainer [2021-10-29 00:02:27,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:02:27,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:02:27,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:02:27,637 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:02:27,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:52" (3/4) ... [2021-10-29 00:02:27,641 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 00:02:27,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:02:27,648 INFO L168 Benchmark]: Toolchain (without parser) took 158436.49 ms. Allocated memory was 69.2 MB in the beginning and 302.0 MB in the end (delta: 232.8 MB). Free memory was 48.8 MB in the beginning and 112.2 MB in the end (delta: -63.4 MB). Peak memory consumption was 169.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:02:27,649 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 50.4 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:02:27,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1151.49 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 33.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 00:02:27,650 INFO L168 Benchmark]: Boogie Preprocessor took 269.40 ms. Allocated memory was 69.2 MB in the beginning and 107.0 MB in the end (delta: 37.7 MB). Free memory was 33.5 MB in the beginning and 84.3 MB in the end (delta: -50.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:02:27,650 INFO L168 Benchmark]: RCFGBuilder took 2222.78 ms. Allocated memory is still 107.0 MB. Free memory was 84.3 MB in the beginning and 53.1 MB in the end (delta: 31.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-29 00:02:27,651 INFO L168 Benchmark]: TraceAbstraction took 154775.33 ms. Allocated memory was 107.0 MB in the beginning and 302.0 MB in the end (delta: 195.0 MB). Free memory was 53.1 MB in the beginning and 112.2 MB in the end (delta: -59.1 MB). Peak memory consumption was 137.0 MB. Max. memory is 16.1 GB. [2021-10-29 00:02:27,651 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 302.0 MB. Free memory is still 112.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:02:27,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 50.4 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1151.49 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 33.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 269.40 ms. Allocated memory was 69.2 MB in the beginning and 107.0 MB in the end (delta: 37.7 MB). Free memory was 33.5 MB in the beginning and 84.3 MB in the end (delta: -50.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2222.78 ms. Allocated memory is still 107.0 MB. Free memory was 84.3 MB in the beginning and 53.1 MB in the end (delta: 31.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 154775.33 ms. Allocated memory was 107.0 MB in the beginning and 302.0 MB in the end (delta: 195.0 MB). Free memory was 53.1 MB in the beginning and 112.2 MB in the end (delta: -59.1 MB). Peak memory consumption was 137.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.76 ms. Allocated memory is still 302.0 MB. Free memory is still 112.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [\old(compFptr)=29, \old(compRegistered)=10, \old(customIrp)=37, \old(DC)=19, \old(DeviceUsageTypePaging)=26, \old(Executive)=22, \old(IPC)=35, \old(KernelMode)=18, \old(lowerDriverReturn)=20, \old(MPR1)=38, \old(MPR3)=33, \old(myStatus)=8, \old(NP)=36, \old(pended)=34, \old(pirp)=15, \old(routine)=21, \old(s)=24, \old(setEventCalled)=31, \old(SKIP1)=17, \old(SKIP2)=28, \old(Suspended)=9, \old(UNLOADED)=14, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=0, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=0, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=41, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1755] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=41, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=5, UNLOADED=0] [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=41, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=41, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=41, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1772] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=44, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=44, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__AssociatedIrp__SystemBuffer=45, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=43, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=43, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, Irp__PendingReturned=0, KernelMode=0, lcontext=44, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=41, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=43, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioHPCdrDeviceControl(DeviceObject, Irp)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=42, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=41, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=42, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=41, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioDeviceControl(devobj, pirp)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=40, DC=2, DeviceUsageTypePaging=1, devobj=42, Executive=0, IPC=7, irp=41, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=41, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: 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 31 procedures, 521 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 154.4s, OverallIterations: 62, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 26.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 34181 SDtfs, 17366 SDslu, 197400 SDs, 0 SdLazy, 14482 SolverSat, 2613 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7277 GetRequests, 6566 SyntacticMatches, 0 SemanticMatches, 711 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1348occurred in iteration=18, InterpolantAutomatonStates: 608, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 61 MinimizatonAttempts, 2181 StatesRemovedByMinimization, 48 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.1s SsaConstructionTime, 9.1s SatisfiabilityAnalysisTime, 38.6s InterpolantComputationTime, 3683 NumberOfCodeBlocks, 3683 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 7098 ConstructedInterpolants, 0 QuantifiedInterpolants, 15081 SizeOfPredicates, 142 NumberOfNonLiveVariables, 24289 ConjunctsInSsa, 451 ConjunctsInUnsatCore, 122 InterpolantComputations, 122 PerfectInterpolantSequences, 14/14 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 [2021-10-29 00:02:27,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3568f47-9d9b-4255-9f42-5183a62c1860/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...