./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg --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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg --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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:36:32,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:36:32,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:36:32,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:36:32,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:36:32,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:36:32,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:36:32,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:36:32,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:36:32,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:36:32,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:36:32,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:36:32,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:36:32,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:36:32,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:36:32,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:36:32,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:36:32,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:36:32,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:36:32,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:36:32,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:36:32,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:36:32,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:36:32,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:36:32,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:36:32,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:36:32,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:36:32,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:36:32,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:36:32,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:36:32,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:36:32,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:36:32,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:36:32,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:36:32,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:36:32,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:36:32,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:36:32,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:36:32,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:36:32,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:36:32,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:36:32,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:36:32,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:36:32,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:36:32,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:36:32,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:36:32,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:36:32,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:36:32,554 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:36:32,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:36:32,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:36:32,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:36:32,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:36:32,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:36:32,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:36:32,557 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:36:32,557 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:36:32,558 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:36:32,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:36:32,558 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:36:32,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:36:32,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:36:32,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:36:32,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:36:32,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:36:32,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:36:32,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:36:32,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:36:32,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:36:32,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:36:32,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:36:32,562 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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2021-10-28 08:36:32,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:36:32,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:36:32,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:36:32,914 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:36:32,915 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:36:32,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-28 08:36:33,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/20cf6c9b8/c858e7e7c4bc4607b7c06a72a4df1c38/FLAG16bee5bc5 [2021-10-28 08:36:33,703 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:36:33,704 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-28 08:36:33,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/20cf6c9b8/c858e7e7c4bc4607b7c06a72a4df1c38/FLAG16bee5bc5 [2021-10-28 08:36:33,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/20cf6c9b8/c858e7e7c4bc4607b7c06a72a4df1c38 [2021-10-28 08:36:33,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:36:33,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:36:33,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:36:33,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:36:33,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:36:33,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:36:33" (1/1) ... [2021-10-28 08:36:33,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c3b6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:33, skipping insertion in model container [2021-10-28 08:36:33,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:36:33" (1/1) ... [2021-10-28 08:36:33,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:36:33,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:36:34,255 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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-28 08:36:34,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:36:34,402 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:36:34,441 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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-28 08:36:34,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:36:34,636 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:36:34,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34 WrapperNode [2021-10-28 08:36:34,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:36:34,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:36:34,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:36:34,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:36:34,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:36:34,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:36:34,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:36:34,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:36:34,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (1/1) ... [2021-10-28 08:36:34,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:36:34,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:36:34,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:36:34,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:36:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:36:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:36:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 08:36:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-10-28 08:36:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-10-28 08:36:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2021-10-28 08:36:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2021-10-28 08:36:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2021-10-28 08:36:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2021-10-28 08:36:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2021-10-28 08:36:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2021-10-28 08:36:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2021-10-28 08:36:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-10-28 08:36:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:36:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2021-10-28 08:36:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2021-10-28 08:36:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2021-10-28 08:36:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2021-10-28 08:36:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-10-28 08:36:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-10-28 08:36:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-10-28 08:36:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-10-28 08:36:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-10-28 08:36:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-10-28 08:36:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2021-10-28 08:36:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2021-10-28 08:36:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-10-28 08:36:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:36:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 08:36:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 08:36:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:36:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-10-28 08:36:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:36:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-10-28 08:36:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2021-10-28 08:36:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2021-10-28 08:36:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2021-10-28 08:36:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2021-10-28 08:36:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2021-10-28 08:36:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2021-10-28 08:36:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2021-10-28 08:36:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2021-10-28 08:36:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2021-10-28 08:36:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2021-10-28 08:36:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-10-28 08:36:34,880 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-10-28 08:36:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-10-28 08:36:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-10-28 08:36:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2021-10-28 08:36:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2021-10-28 08:36:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-10-28 08:36:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-10-28 08:36:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-10-28 08:36:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-10-28 08:36:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2021-10-28 08:36:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-10-28 08:36:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:36:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-10-28 08:36:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:36:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:36:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:36:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:36:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:36:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:36:35,256 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,324 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:35,325 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:35,336 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,349 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:35,349 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:35,358 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,581 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-10-28 08:36:35,581 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-10-28 08:36:35,583 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,700 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-10-28 08:36:35,701 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-10-28 08:36:35,716 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,747 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-10-28 08:36:35,747 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-10-28 08:36:35,894 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,912 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:35,912 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:35,913 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:35,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:35,927 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:35,942 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:35,942 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:36,006 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:36,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-10-28 08:36:36,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-10-28 08:36:36,095 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:36,101 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:36,101 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:36,102 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:36,110 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:36,110 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:36,111 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:36:36,118 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:36:36,118 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:36:36,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:36:36,163 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 08:36:36,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:36:36 BoogieIcfgContainer [2021-10-28 08:36:36,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:36:36,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:36:36,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:36:36,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:36:36,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:36:33" (1/3) ... [2021-10-28 08:36:36,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4665e355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:36:36, skipping insertion in model container [2021-10-28 08:36:36,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:34" (2/3) ... [2021-10-28 08:36:36,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4665e355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:36:36, skipping insertion in model container [2021-10-28 08:36:36,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:36:36" (3/3) ... [2021-10-28 08:36:36,181 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-10-28 08:36:36,195 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:36:36,195 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 08:36:36,248 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:36:36,255 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 08:36:36,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 08:36:36,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 219 states have (on average 1.4292237442922375) internal successors, (313), 243 states have internal predecessors, (313), 57 states have call successors, (57), 24 states have call predecessors, (57), 24 states have return successors, (57), 51 states have call predecessors, (57), 57 states have call successors, (57) [2021-10-28 08:36:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 08:36:36,297 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:36,298 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:36,299 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:36,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:36,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1798557025, now seen corresponding path program 1 times [2021-10-28 08:36:36,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:36,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887560808] [2021-10-28 08:36:36,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:36,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:36,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:36,998 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 08:36:36,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:36,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887560808] [2021-10-28 08:36:37,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887560808] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:37,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:37,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:36:37,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088190516] [2021-10-28 08:36:37,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:36:37,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:37,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:36:37,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:36:37,042 INFO L87 Difference]: Start difference. First operand has 303 states, 219 states have (on average 1.4292237442922375) internal successors, (313), 243 states have internal predecessors, (313), 57 states have call successors, (57), 24 states have call predecessors, (57), 24 states have return successors, (57), 51 states have call predecessors, (57), 57 states have call successors, (57) 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 08:36:38,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:38,484 INFO L93 Difference]: Finished difference Result 330 states and 450 transitions. [2021-10-28 08:36:38,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:36:38,487 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 08:36:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:38,520 INFO L225 Difference]: With dead ends: 330 [2021-10-28 08:36:38,520 INFO L226 Difference]: Without dead ends: 324 [2021-10-28 08:36:38,522 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 08:36:38,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-10-28 08:36:38,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 294. [2021-10-28 08:36:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 214 states have (on average 1.3785046728971964) internal successors, (295), 235 states have internal predecessors, (295), 57 states have call successors, (57), 24 states have call predecessors, (57), 22 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2021-10-28 08:36:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 389 transitions. [2021-10-28 08:36:38,600 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 389 transitions. Word has length 15 [2021-10-28 08:36:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:38,601 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 389 transitions. [2021-10-28 08:36:38,601 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 08:36:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 389 transitions. [2021-10-28 08:36:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 08:36:38,603 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:38,603 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] [2021-10-28 08:36:38,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:36:38,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:38,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:38,605 INFO L85 PathProgramCache]: Analyzing trace with hash -477224522, now seen corresponding path program 1 times [2021-10-28 08:36:38,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:38,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833636095] [2021-10-28 08:36:38,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:38,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:38,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:38,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:38,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833636095] [2021-10-28 08:36:38,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833636095] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:38,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:38,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:36:38,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038314081] [2021-10-28 08:36:38,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:36:38,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:38,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:36:38,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:36:38,937 INFO L87 Difference]: Start difference. First operand 294 states and 389 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:36:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:40,388 INFO L93 Difference]: Finished difference Result 324 states and 435 transitions. [2021-10-28 08:36:40,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:36:40,389 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), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-10-28 08:36:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:40,393 INFO L225 Difference]: With dead ends: 324 [2021-10-28 08:36:40,394 INFO L226 Difference]: Without dead ends: 324 [2021-10-28 08:36:40,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:36:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-10-28 08:36:40,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 294. [2021-10-28 08:36:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 214 states have (on average 1.3738317757009346) internal successors, (294), 235 states have internal predecessors, (294), 57 states have call successors, (57), 24 states have call predecessors, (57), 22 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2021-10-28 08:36:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 388 transitions. [2021-10-28 08:36:40,444 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 388 transitions. Word has length 20 [2021-10-28 08:36:40,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:40,445 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 388 transitions. [2021-10-28 08:36:40,445 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), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:36:40,445 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 388 transitions. [2021-10-28 08:36:40,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:36:40,447 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:40,447 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] [2021-10-28 08:36:40,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:36:40,448 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:40,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:40,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1351580342, now seen corresponding path program 1 times [2021-10-28 08:36:40,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:40,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298594558] [2021-10-28 08:36:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:40,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:40,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:40,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:40,740 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 08:36:40,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:40,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298594558] [2021-10-28 08:36:40,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298594558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:40,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:40,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:36:40,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533048093] [2021-10-28 08:36:40,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:36:40,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:40,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:36:40,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:36:40,744 INFO L87 Difference]: Start difference. First operand 294 states and 388 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:36:42,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:42,537 INFO L93 Difference]: Finished difference Result 481 states and 642 transitions. [2021-10-28 08:36:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:36:42,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-10-28 08:36:42,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:42,544 INFO L225 Difference]: With dead ends: 481 [2021-10-28 08:36:42,544 INFO L226 Difference]: Without dead ends: 480 [2021-10-28 08:36:42,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 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 08:36:42,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-10-28 08:36:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 431. [2021-10-28 08:36:42,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 329 states have (on average 1.3161094224924013) internal successors, (433), 336 states have internal predecessors, (433), 66 states have call successors, (66), 37 states have call predecessors, (66), 35 states have return successors, (74), 59 states have call predecessors, (74), 54 states have call successors, (74) [2021-10-28 08:36:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 573 transitions. [2021-10-28 08:36:42,587 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 573 transitions. Word has length 28 [2021-10-28 08:36:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:42,588 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 573 transitions. [2021-10-28 08:36:42,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:36:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 573 transitions. [2021-10-28 08:36:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 08:36:42,590 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:42,591 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 08:36:42,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:36:42,591 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:42,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:42,592 INFO L85 PathProgramCache]: Analyzing trace with hash 880923331, now seen corresponding path program 1 times [2021-10-28 08:36:42,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:42,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554773217] [2021-10-28 08:36:42,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:42,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:42,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:42,889 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 08:36:42,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:42,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554773217] [2021-10-28 08:36:42,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554773217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:42,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:42,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:36:42,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044911540] [2021-10-28 08:36:42,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:36:42,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:36:42,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:36:42,894 INFO L87 Difference]: Start difference. First operand 431 states and 573 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:36:44,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:44,316 INFO L93 Difference]: Finished difference Result 679 states and 906 transitions. [2021-10-28 08:36:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:36:44,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 6 states have call predecessors, (7), 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 08:36:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:44,323 INFO L225 Difference]: With dead ends: 679 [2021-10-28 08:36:44,323 INFO L226 Difference]: Without dead ends: 679 [2021-10-28 08:36:44,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 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 08:36:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2021-10-28 08:36:44,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 634. [2021-10-28 08:36:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 494 states have (on average 1.3157894736842106) internal successors, (650), 499 states have internal predecessors, (650), 86 states have call successors, (86), 55 states have call predecessors, (86), 53 states have return successors, (112), 81 states have call predecessors, (112), 76 states have call successors, (112) [2021-10-28 08:36:44,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 848 transitions. [2021-10-28 08:36:44,370 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 848 transitions. Word has length 30 [2021-10-28 08:36:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:44,370 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 848 transitions. [2021-10-28 08:36:44,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:36:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 848 transitions. [2021-10-28 08:36:44,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:36:44,373 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:44,373 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] [2021-10-28 08:36:44,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:36:44,374 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:44,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:44,375 INFO L85 PathProgramCache]: Analyzing trace with hash 997790288, now seen corresponding path program 1 times [2021-10-28 08:36:44,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:44,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273491485] [2021-10-28 08:36:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:44,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:44,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:44,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:44,619 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 08:36:44,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:44,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273491485] [2021-10-28 08:36:44,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273491485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:44,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:44,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:36:44,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725554093] [2021-10-28 08:36:44,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:36:44,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:44,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:36:44,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:36:44,622 INFO L87 Difference]: Start difference. First operand 634 states and 848 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:36:46,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:46,210 INFO L93 Difference]: Finished difference Result 723 states and 956 transitions. [2021-10-28 08:36:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:36:46,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2021-10-28 08:36:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:46,217 INFO L225 Difference]: With dead ends: 723 [2021-10-28 08:36:46,218 INFO L226 Difference]: Without dead ends: 723 [2021-10-28 08:36:46,218 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 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 08:36:46,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-10-28 08:36:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 678. [2021-10-28 08:36:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 532 states have (on average 1.3195488721804511) internal successors, (702), 543 states have internal predecessors, (702), 87 states have call successors, (87), 57 states have call predecessors, (87), 58 states have return successors, (117), 80 states have call predecessors, (117), 78 states have call successors, (117) [2021-10-28 08:36:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 906 transitions. [2021-10-28 08:36:46,257 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 906 transitions. Word has length 34 [2021-10-28 08:36:46,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:46,257 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 906 transitions. [2021-10-28 08:36:46,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:36:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 906 transitions. [2021-10-28 08:36:46,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 08:36:46,262 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:46,262 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] [2021-10-28 08:36:46,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:36:46,262 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:46,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash 745640695, now seen corresponding path program 1 times [2021-10-28 08:36:46,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:46,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220211903] [2021-10-28 08:36:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:46,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-10-28 08:36:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:46,602 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 08:36:46,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:46,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220211903] [2021-10-28 08:36:46,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220211903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:46,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:46,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 08:36:46,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311913538] [2021-10-28 08:36:46,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:36:46,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:46,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:36:46,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:36:46,607 INFO L87 Difference]: Start difference. First operand 678 states and 906 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:36:47,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:47,933 INFO L93 Difference]: Finished difference Result 704 states and 936 transitions. [2021-10-28 08:36:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:36:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2021-10-28 08:36:47,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:47,946 INFO L225 Difference]: With dead ends: 704 [2021-10-28 08:36:47,946 INFO L226 Difference]: Without dead ends: 704 [2021-10-28 08:36:47,948 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:36:47,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-10-28 08:36:47,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 682. [2021-10-28 08:36:47,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 535 states have (on average 1.3177570093457944) internal successors, (705), 546 states have internal predecessors, (705), 87 states have call successors, (87), 57 states have call predecessors, (87), 59 states have return successors, (118), 81 states have call predecessors, (118), 78 states have call successors, (118) [2021-10-28 08:36:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 910 transitions. [2021-10-28 08:36:48,001 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 910 transitions. Word has length 41 [2021-10-28 08:36:48,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:48,006 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 910 transitions. [2021-10-28 08:36:48,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:36:48,006 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 910 transitions. [2021-10-28 08:36:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 08:36:48,039 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:48,039 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 08:36:48,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:36:48,039 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:48,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:48,040 INFO L85 PathProgramCache]: Analyzing trace with hash 238427558, now seen corresponding path program 1 times [2021-10-28 08:36:48,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:48,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441457517] [2021-10-28 08:36:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:48,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:48,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:48,327 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 08:36:48,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:48,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441457517] [2021-10-28 08:36:48,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441457517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:48,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:48,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:36:48,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465726816] [2021-10-28 08:36:48,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:36:48,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:48,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:36:48,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:36:48,331 INFO L87 Difference]: Start difference. First operand 682 states and 910 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (7), 6 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 08:36:49,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:49,830 INFO L93 Difference]: Finished difference Result 706 states and 940 transitions. [2021-10-28 08:36:49,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:36:49,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (7), 6 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 40 [2021-10-28 08:36:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:49,836 INFO L225 Difference]: With dead ends: 706 [2021-10-28 08:36:49,837 INFO L226 Difference]: Without dead ends: 706 [2021-10-28 08:36:49,838 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:36:49,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-28 08:36:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 693. [2021-10-28 08:36:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 546 states have (on average 1.3168498168498168) internal successors, (719), 556 states have internal predecessors, (719), 87 states have call successors, (87), 58 states have call predecessors, (87), 59 states have return successors, (118), 81 states have call predecessors, (118), 78 states have call successors, (118) [2021-10-28 08:36:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 924 transitions. [2021-10-28 08:36:49,872 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 924 transitions. Word has length 40 [2021-10-28 08:36:49,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:49,873 INFO L470 AbstractCegarLoop]: Abstraction has 693 states and 924 transitions. [2021-10-28 08:36:49,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (7), 6 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 08:36:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 924 transitions. [2021-10-28 08:36:49,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 08:36:49,874 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:49,875 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] [2021-10-28 08:36:49,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:36:49,875 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:49,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:49,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1155197731, now seen corresponding path program 1 times [2021-10-28 08:36:49,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:49,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735595558] [2021-10-28 08:36:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:49,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:50,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:50,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:50,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:50,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:36:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 08:36:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:50,139 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 08:36:50,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:50,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735595558] [2021-10-28 08:36:50,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735595558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:50,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:50,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:36:50,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189267268] [2021-10-28 08:36:50,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:36:50,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:36:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:36:50,143 INFO L87 Difference]: Start difference. First operand 693 states and 924 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 7 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 08:36:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:51,279 INFO L93 Difference]: Finished difference Result 763 states and 1011 transitions. [2021-10-28 08:36:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:36:51,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 7 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 41 [2021-10-28 08:36:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:51,285 INFO L225 Difference]: With dead ends: 763 [2021-10-28 08:36:51,286 INFO L226 Difference]: Without dead ends: 763 [2021-10-28 08:36:51,286 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:36:51,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-10-28 08:36:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 732. [2021-10-28 08:36:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 579 states have (on average 1.31433506044905) internal successors, (761), 592 states have internal predecessors, (761), 87 states have call successors, (87), 58 states have call predecessors, (87), 65 states have return successors, (124), 83 states have call predecessors, (124), 78 states have call successors, (124) [2021-10-28 08:36:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 972 transitions. [2021-10-28 08:36:51,320 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 972 transitions. Word has length 41 [2021-10-28 08:36:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:51,323 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 972 transitions. [2021-10-28 08:36:51,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 7 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 08:36:51,323 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 972 transitions. [2021-10-28 08:36:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 08:36:51,326 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:51,326 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] [2021-10-28 08:36:51,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:36:51,327 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:51,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:51,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1904225145, now seen corresponding path program 1 times [2021-10-28 08:36:51,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:51,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375936082] [2021-10-28 08:36:51,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:51,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:51,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:36:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:51,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 08:36:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:51,729 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 08:36:51,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:51,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375936082] [2021-10-28 08:36:51,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375936082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:51,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:51,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:36:51,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489347172] [2021-10-28 08:36:51,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:36:51,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:51,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:36:51,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:36:51,736 INFO L87 Difference]: Start difference. First operand 732 states and 972 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:36:53,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:53,422 INFO L93 Difference]: Finished difference Result 763 states and 1009 transitions. [2021-10-28 08:36:53,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:36:53,423 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2021-10-28 08:36:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:53,428 INFO L225 Difference]: With dead ends: 763 [2021-10-28 08:36:53,429 INFO L226 Difference]: Without dead ends: 763 [2021-10-28 08:36:53,429 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:36:53,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-10-28 08:36:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 732. [2021-10-28 08:36:53,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 579 states have (on average 1.310880829015544) internal successors, (759), 592 states have internal predecessors, (759), 87 states have call successors, (87), 58 states have call predecessors, (87), 65 states have return successors, (124), 83 states have call predecessors, (124), 78 states have call successors, (124) [2021-10-28 08:36:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 970 transitions. [2021-10-28 08:36:53,462 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 970 transitions. Word has length 42 [2021-10-28 08:36:53,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:53,463 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 970 transitions. [2021-10-28 08:36:53,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:36:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 970 transitions. [2021-10-28 08:36:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-28 08:36:53,465 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:53,465 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] [2021-10-28 08:36:53,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 08:36:53,466 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:53,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1987582385, now seen corresponding path program 1 times [2021-10-28 08:36:53,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:53,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920196844] [2021-10-28 08:36:53,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:53,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:53,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:53,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:36:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 08:36:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:53,844 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 08:36:53,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:53,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920196844] [2021-10-28 08:36:53,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920196844] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:53,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:53,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:36:53,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665143954] [2021-10-28 08:36:53,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:36:53,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:53,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:36:53,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:36:53,847 INFO L87 Difference]: Start difference. First operand 732 states and 970 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:36:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:55,885 INFO L93 Difference]: Finished difference Result 763 states and 1007 transitions. [2021-10-28 08:36:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:36:55,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2021-10-28 08:36:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:55,892 INFO L225 Difference]: With dead ends: 763 [2021-10-28 08:36:55,892 INFO L226 Difference]: Without dead ends: 763 [2021-10-28 08:36:55,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:36:55,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-10-28 08:36:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 732. [2021-10-28 08:36:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 579 states have (on average 1.307426597582038) internal successors, (757), 592 states have internal predecessors, (757), 87 states have call successors, (87), 58 states have call predecessors, (87), 65 states have return successors, (124), 83 states have call predecessors, (124), 78 states have call successors, (124) [2021-10-28 08:36:55,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 968 transitions. [2021-10-28 08:36:55,926 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 968 transitions. Word has length 43 [2021-10-28 08:36:55,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:55,926 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 968 transitions. [2021-10-28 08:36:55,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:36:55,927 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 968 transitions. [2021-10-28 08:36:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 08:36:55,928 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:55,929 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] [2021-10-28 08:36:55,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 08:36:55,929 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:55,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1134491961, now seen corresponding path program 1 times [2021-10-28 08:36:55,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:55,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630465317] [2021-10-28 08:36:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:55,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:56,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:56,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:56,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-10-28 08:36:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:56,169 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 08:36:56,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:56,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630465317] [2021-10-28 08:36:56,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630465317] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:56,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:56,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 08:36:56,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277122280] [2021-10-28 08:36:56,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:36:56,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:56,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:36:56,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:36:56,172 INFO L87 Difference]: Start difference. First operand 732 states and 968 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:36:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:58,193 INFO L93 Difference]: Finished difference Result 1106 states and 1479 transitions. [2021-10-28 08:36:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:36:58,193 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), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2021-10-28 08:36:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:58,200 INFO L225 Difference]: With dead ends: 1106 [2021-10-28 08:36:58,200 INFO L226 Difference]: Without dead ends: 1106 [2021-10-28 08:36:58,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:36:58,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-10-28 08:36:58,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 845. [2021-10-28 08:36:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 670 states have (on average 1.3149253731343284) internal successors, (881), 685 states have internal predecessors, (881), 97 states have call successors, (97), 68 states have call predecessors, (97), 77 states have return successors, (144), 93 states have call predecessors, (144), 88 states have call successors, (144) [2021-10-28 08:36:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1122 transitions. [2021-10-28 08:36:58,236 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1122 transitions. Word has length 44 [2021-10-28 08:36:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:58,236 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 1122 transitions. [2021-10-28 08:36:58,237 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), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:36:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1122 transitions. [2021-10-28 08:36:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 08:36:58,238 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:58,238 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] [2021-10-28 08:36:58,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 08:36:58,239 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:58,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:58,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1430364190, now seen corresponding path program 1 times [2021-10-28 08:36:58,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:58,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639018490] [2021-10-28 08:36:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:58,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:58,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:58,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:58,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:36:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:58,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 08:36:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:58,495 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 08:36:58,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:58,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639018490] [2021-10-28 08:36:58,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639018490] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:58,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:58,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 08:36:58,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421719259] [2021-10-28 08:36:58,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:36:58,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:58,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:36:58,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:36:58,501 INFO L87 Difference]: Start difference. First operand 845 states and 1122 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (7), 7 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 08:36:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:59,433 INFO L93 Difference]: Finished difference Result 885 states and 1170 transitions. [2021-10-28 08:36:59,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:36:59,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (7), 7 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 44 [2021-10-28 08:36:59,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:59,440 INFO L225 Difference]: With dead ends: 885 [2021-10-28 08:36:59,440 INFO L226 Difference]: Without dead ends: 870 [2021-10-28 08:36:59,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:36:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2021-10-28 08:36:59,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 843. [2021-10-28 08:36:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 669 states have (on average 1.3139013452914798) internal successors, (879), 684 states have internal predecessors, (879), 96 states have call successors, (96), 68 states have call predecessors, (96), 77 states have return successors, (143), 92 states have call predecessors, (143), 87 states have call successors, (143) [2021-10-28 08:36:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1118 transitions. [2021-10-28 08:36:59,515 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1118 transitions. Word has length 44 [2021-10-28 08:36:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:59,516 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1118 transitions. [2021-10-28 08:36:59,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (7), 7 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 08:36:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1118 transitions. [2021-10-28 08:36:59,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 08:36:59,518 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:59,519 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] [2021-10-28 08:36:59,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 08:36:59,519 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:36:59,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash 571683511, now seen corresponding path program 1 times [2021-10-28 08:36:59,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:59,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238843900] [2021-10-28 08:36:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:59,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:36:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:59,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:36:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:36:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-10-28 08:36:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:59,846 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 08:36:59,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:59,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238843900] [2021-10-28 08:36:59,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238843900] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:59,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:59,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 08:36:59,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323991594] [2021-10-28 08:36:59,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:36:59,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:59,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:36:59,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:36:59,850 INFO L87 Difference]: Start difference. First operand 843 states and 1118 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 08:37:02,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:02,099 INFO L93 Difference]: Finished difference Result 897 states and 1174 transitions. [2021-10-28 08:37:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:02,099 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2021-10-28 08:37:02,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:02,105 INFO L225 Difference]: With dead ends: 897 [2021-10-28 08:37:02,105 INFO L226 Difference]: Without dead ends: 897 [2021-10-28 08:37:02,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:37:02,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2021-10-28 08:37:02,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 834. [2021-10-28 08:37:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 660 states have (on average 1.3) internal successors, (858), 675 states have internal predecessors, (858), 96 states have call successors, (96), 68 states have call predecessors, (96), 77 states have return successors, (143), 92 states have call predecessors, (143), 87 states have call successors, (143) [2021-10-28 08:37:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1097 transitions. [2021-10-28 08:37:02,135 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1097 transitions. Word has length 45 [2021-10-28 08:37:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:02,136 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1097 transitions. [2021-10-28 08:37:02,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 08:37:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1097 transitions. [2021-10-28 08:37:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 08:37:02,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:02,138 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] [2021-10-28 08:37:02,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 08:37:02,139 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:02,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash 200933273, now seen corresponding path program 1 times [2021-10-28 08:37:02,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:02,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002635935] [2021-10-28 08:37:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:02,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:02,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:02,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:02,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-10-28 08:37:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:02,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:02,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002635935] [2021-10-28 08:37:02,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002635935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:02,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:02,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:37:02,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671333836] [2021-10-28 08:37:02,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:37:02,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:02,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:37:02,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:37:02,357 INFO L87 Difference]: Start difference. First operand 834 states and 1097 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:37:03,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:03,815 INFO L93 Difference]: Finished difference Result 594 states and 749 transitions. [2021-10-28 08:37:03,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:37:03,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2021-10-28 08:37:03,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:03,820 INFO L225 Difference]: With dead ends: 594 [2021-10-28 08:37:03,820 INFO L226 Difference]: Without dead ends: 594 [2021-10-28 08:37:03,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:37:03,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-10-28 08:37:03,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 542. [2021-10-28 08:37:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 429 states have (on average 1.2773892773892774) internal successors, (548), 441 states have internal predecessors, (548), 63 states have call successors, (63), 43 states have call predecessors, (63), 49 states have return successors, (75), 59 states have call predecessors, (75), 54 states have call successors, (75) [2021-10-28 08:37:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 686 transitions. [2021-10-28 08:37:03,842 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 686 transitions. Word has length 49 [2021-10-28 08:37:03,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:03,842 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 686 transitions. [2021-10-28 08:37:03,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:37:03,843 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 686 transitions. [2021-10-28 08:37:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 08:37:03,845 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:03,845 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 08:37:03,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 08:37:03,846 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:03,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:03,846 INFO L85 PathProgramCache]: Analyzing trace with hash 990627785, now seen corresponding path program 1 times [2021-10-28 08:37:03,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:03,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617761901] [2021-10-28 08:37:03,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:03,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:04,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-10-28 08:37:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:04,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-10-28 08:37:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:04,097 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 08:37:04,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:04,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617761901] [2021-10-28 08:37:04,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617761901] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:04,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:04,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:37:04,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541291515] [2021-10-28 08:37:04,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:37:04,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:04,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:37:04,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:37:04,101 INFO L87 Difference]: Start difference. First operand 542 states and 686 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:37:05,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:05,149 INFO L93 Difference]: Finished difference Result 583 states and 739 transitions. [2021-10-28 08:37:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:37:05,150 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2021-10-28 08:37:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:05,153 INFO L225 Difference]: With dead ends: 583 [2021-10-28 08:37:05,153 INFO L226 Difference]: Without dead ends: 583 [2021-10-28 08:37:05,153 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:05,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2021-10-28 08:37:05,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 556. [2021-10-28 08:37:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 442 states have (on average 1.2782805429864252) internal successors, (565), 454 states have internal predecessors, (565), 63 states have call successors, (63), 43 states have call predecessors, (63), 50 states have return successors, (78), 59 states have call predecessors, (78), 54 states have call successors, (78) [2021-10-28 08:37:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 706 transitions. [2021-10-28 08:37:05,175 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 706 transitions. Word has length 55 [2021-10-28 08:37:05,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:05,175 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 706 transitions. [2021-10-28 08:37:05,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:37:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 706 transitions. [2021-10-28 08:37:05,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 08:37:05,178 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:05,178 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 08:37:05,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 08:37:05,179 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:05,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:05,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1272827596, now seen corresponding path program 1 times [2021-10-28 08:37:05,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:05,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932067980] [2021-10-28 08:37:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:05,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:05,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:05,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:05,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 08:37:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:05,516 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 08:37:05,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:05,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932067980] [2021-10-28 08:37:05,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932067980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:05,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:05,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:37:05,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144472811] [2021-10-28 08:37:05,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:37:05,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:05,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:37:05,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:05,524 INFO L87 Difference]: Start difference. First operand 556 states and 706 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (7), 7 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 08:37:08,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:08,274 INFO L93 Difference]: Finished difference Result 728 states and 922 transitions. [2021-10-28 08:37:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:37:08,275 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (7), 7 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 52 [2021-10-28 08:37:08,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:08,279 INFO L225 Difference]: With dead ends: 728 [2021-10-28 08:37:08,279 INFO L226 Difference]: Without dead ends: 728 [2021-10-28 08:37:08,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2021-10-28 08:37:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-10-28 08:37:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 585. [2021-10-28 08:37:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 465 states have (on average 1.270967741935484) internal successors, (591), 478 states have internal predecessors, (591), 65 states have call successors, (65), 44 states have call predecessors, (65), 54 states have return successors, (83), 63 states have call predecessors, (83), 56 states have call successors, (83) [2021-10-28 08:37:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 739 transitions. [2021-10-28 08:37:08,304 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 739 transitions. Word has length 52 [2021-10-28 08:37:08,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:08,305 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 739 transitions. [2021-10-28 08:37:08,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (7), 7 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 08:37:08,305 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 739 transitions. [2021-10-28 08:37:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 08:37:08,307 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:08,307 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 08:37:08,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 08:37:08,308 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:08,309 INFO L85 PathProgramCache]: Analyzing trace with hash -539078543, now seen corresponding path program 1 times [2021-10-28 08:37:08,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:08,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374610079] [2021-10-28 08:37:08,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:08,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 08:37:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:08,522 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 08:37:08,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:08,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374610079] [2021-10-28 08:37:08,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374610079] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:08,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:08,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:37:08,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947331873] [2021-10-28 08:37:08,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:37:08,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:08,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:37:08,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:37:08,525 INFO L87 Difference]: Start difference. First operand 585 states and 739 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 7 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 08:37:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:09,699 INFO L93 Difference]: Finished difference Result 753 states and 952 transitions. [2021-10-28 08:37:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:37:09,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 7 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 54 [2021-10-28 08:37:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:09,704 INFO L225 Difference]: With dead ends: 753 [2021-10-28 08:37:09,704 INFO L226 Difference]: Without dead ends: 753 [2021-10-28 08:37:09,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:37:09,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2021-10-28 08:37:09,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 660. [2021-10-28 08:37:09,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 529 states have (on average 1.2665406427221173) internal successors, (670), 538 states have internal predecessors, (670), 68 states have call successors, (68), 47 states have call predecessors, (68), 62 states have return successors, (98), 75 states have call predecessors, (98), 59 states have call successors, (98) [2021-10-28 08:37:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 836 transitions. [2021-10-28 08:37:09,731 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 836 transitions. Word has length 54 [2021-10-28 08:37:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:09,732 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 836 transitions. [2021-10-28 08:37:09,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 7 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 08:37:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 836 transitions. [2021-10-28 08:37:09,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 08:37:09,736 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:09,736 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 08:37:09,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 08:37:09,737 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:09,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:09,737 INFO L85 PathProgramCache]: Analyzing trace with hash 905990001, now seen corresponding path program 1 times [2021-10-28 08:37:09,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:09,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874422834] [2021-10-28 08:37:09,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:09,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:09,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:09,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:09,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 08:37:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:10,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:10,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874422834] [2021-10-28 08:37:10,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874422834] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:10,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:10,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:37:10,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882122754] [2021-10-28 08:37:10,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:37:10,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:10,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:37:10,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:37:10,015 INFO L87 Difference]: Start difference. First operand 660 states and 836 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 7 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 08:37:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:10,818 INFO L93 Difference]: Finished difference Result 730 states and 935 transitions. [2021-10-28 08:37:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:37:10,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 7 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 54 [2021-10-28 08:37:10,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:10,823 INFO L225 Difference]: With dead ends: 730 [2021-10-28 08:37:10,824 INFO L226 Difference]: Without dead ends: 730 [2021-10-28 08:37:10,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:37:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2021-10-28 08:37:10,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 672. [2021-10-28 08:37:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 541 states have (on average 1.2698706099815158) internal successors, (687), 550 states have internal predecessors, (687), 68 states have call successors, (68), 47 states have call predecessors, (68), 62 states have return successors, (98), 75 states have call predecessors, (98), 59 states have call successors, (98) [2021-10-28 08:37:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 853 transitions. [2021-10-28 08:37:10,850 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 853 transitions. Word has length 54 [2021-10-28 08:37:10,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:10,851 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 853 transitions. [2021-10-28 08:37:10,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 7 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 08:37:10,851 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 853 transitions. [2021-10-28 08:37:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 08:37:10,853 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:10,854 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] [2021-10-28 08:37:10,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 08:37:10,854 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:10,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:10,855 INFO L85 PathProgramCache]: Analyzing trace with hash -682357901, now seen corresponding path program 1 times [2021-10-28 08:37:10,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:10,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611518446] [2021-10-28 08:37:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:10,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:11,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 08:37:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:11,171 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 08:37:11,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:11,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611518446] [2021-10-28 08:37:11,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611518446] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:11,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:11,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:37:11,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79896008] [2021-10-28 08:37:11,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:37:11,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:11,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:37:11,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:11,175 INFO L87 Difference]: Start difference. First operand 672 states and 853 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (7), 7 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 08:37:12,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:12,640 INFO L93 Difference]: Finished difference Result 633 states and 795 transitions. [2021-10-28 08:37:12,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 08:37:12,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (7), 7 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 54 [2021-10-28 08:37:12,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:12,643 INFO L225 Difference]: With dead ends: 633 [2021-10-28 08:37:12,643 INFO L226 Difference]: Without dead ends: 633 [2021-10-28 08:37:12,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:37:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2021-10-28 08:37:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 592. [2021-10-28 08:37:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 472 states have (on average 1.2648305084745763) internal successors, (597), 485 states have internal predecessors, (597), 65 states have call successors, (65), 45 states have call predecessors, (65), 54 states have return successors, (85), 62 states have call predecessors, (85), 57 states have call successors, (85) [2021-10-28 08:37:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 747 transitions. [2021-10-28 08:37:12,669 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 747 transitions. Word has length 54 [2021-10-28 08:37:12,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:12,670 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 747 transitions. [2021-10-28 08:37:12,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (7), 7 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 08:37:12,670 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 747 transitions. [2021-10-28 08:37:12,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:37:12,672 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:12,672 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 08:37:12,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 08:37:12,672 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:12,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:12,673 INFO L85 PathProgramCache]: Analyzing trace with hash -210511565, now seen corresponding path program 1 times [2021-10-28 08:37:12,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:12,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645089456] [2021-10-28 08:37:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:12,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:12,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:12,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:12,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-10-28 08:37:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:13,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:13,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:13,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645089456] [2021-10-28 08:37:13,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645089456] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:13,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:13,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 08:37:13,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226468462] [2021-10-28 08:37:13,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:37:13,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:13,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:37:13,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:37:13,076 INFO L87 Difference]: Start difference. First operand 592 states and 747 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:37:14,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:14,009 INFO L93 Difference]: Finished difference Result 556 states and 690 transitions. [2021-10-28 08:37:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:37:14,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2021-10-28 08:37:14,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:14,013 INFO L225 Difference]: With dead ends: 556 [2021-10-28 08:37:14,013 INFO L226 Difference]: Without dead ends: 556 [2021-10-28 08:37:14,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:37:14,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-10-28 08:37:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 518. [2021-10-28 08:37:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 409 states have (on average 1.2469437652811737) internal successors, (510), 418 states have internal predecessors, (510), 61 states have call successors, (61), 43 states have call predecessors, (61), 47 states have return successors, (70), 57 states have call predecessors, (70), 54 states have call successors, (70) [2021-10-28 08:37:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 641 transitions. [2021-10-28 08:37:14,031 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 641 transitions. Word has length 61 [2021-10-28 08:37:14,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:14,031 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 641 transitions. [2021-10-28 08:37:14,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:37:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 641 transitions. [2021-10-28 08:37:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 08:37:14,033 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:14,033 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 08:37:14,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 08:37:14,034 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:14,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash 921268203, now seen corresponding path program 1 times [2021-10-28 08:37:14,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:14,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783545833] [2021-10-28 08:37:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:14,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:14,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:14,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:14,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:14,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 08:37:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:14,366 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 08:37:14,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:14,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783545833] [2021-10-28 08:37:14,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783545833] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:14,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:14,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 08:37:14,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333388324] [2021-10-28 08:37:14,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 08:37:14,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:37:14,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:37:14,370 INFO L87 Difference]: Start difference. First operand 518 states and 641 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 7 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 08:37:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:15,779 INFO L93 Difference]: Finished difference Result 580 states and 722 transitions. [2021-10-28 08:37:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:15,780 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 7 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 55 [2021-10-28 08:37:15,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:15,783 INFO L225 Difference]: With dead ends: 580 [2021-10-28 08:37:15,783 INFO L226 Difference]: Without dead ends: 579 [2021-10-28 08:37:15,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2021-10-28 08:37:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 535. [2021-10-28 08:37:15,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 424 states have (on average 1.2382075471698113) internal successors, (525), 433 states have internal predecessors, (525), 61 states have call successors, (61), 43 states have call predecessors, (61), 49 states have return successors, (77), 59 states have call predecessors, (77), 54 states have call successors, (77) [2021-10-28 08:37:15,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 663 transitions. [2021-10-28 08:37:15,803 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 663 transitions. Word has length 55 [2021-10-28 08:37:15,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:15,803 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 663 transitions. [2021-10-28 08:37:15,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 7 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 08:37:15,804 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 663 transitions. [2021-10-28 08:37:15,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 08:37:15,806 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:15,806 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 08:37:15,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 08:37:15,806 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:15,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash 921545033, now seen corresponding path program 1 times [2021-10-28 08:37:15,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:15,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584964378] [2021-10-28 08:37:15,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:15,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 08:37:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:16,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:16,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584964378] [2021-10-28 08:37:16,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584964378] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:16,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:16,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 08:37:16,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543413483] [2021-10-28 08:37:16,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 08:37:16,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:16,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:37:16,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:37:16,123 INFO L87 Difference]: Start difference. First operand 535 states and 663 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 7 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 08:37:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:17,619 INFO L93 Difference]: Finished difference Result 575 states and 710 transitions. [2021-10-28 08:37:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:37:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 7 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 55 [2021-10-28 08:37:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:17,625 INFO L225 Difference]: With dead ends: 575 [2021-10-28 08:37:17,625 INFO L226 Difference]: Without dead ends: 563 [2021-10-28 08:37:17,626 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:37:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2021-10-28 08:37:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 532. [2021-10-28 08:37:17,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 421 states have (on average 1.2399049881235154) internal successors, (522), 431 states have internal predecessors, (522), 61 states have call successors, (61), 43 states have call predecessors, (61), 49 states have return successors, (76), 58 states have call predecessors, (76), 54 states have call successors, (76) [2021-10-28 08:37:17,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 659 transitions. [2021-10-28 08:37:17,648 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 659 transitions. Word has length 55 [2021-10-28 08:37:17,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:17,649 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 659 transitions. [2021-10-28 08:37:17,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 7 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 08:37:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 659 transitions. [2021-10-28 08:37:17,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 08:37:17,652 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:17,652 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] [2021-10-28 08:37:17,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 08:37:17,653 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1859523861, now seen corresponding path program 1 times [2021-10-28 08:37:17,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:17,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248833155] [2021-10-28 08:37:17,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:17,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:17,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:17,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:17,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 08:37:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:17,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-10-28 08:37:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:17,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:17,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248833155] [2021-10-28 08:37:17,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248833155] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:17,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:17,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:37:17,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054850199] [2021-10-28 08:37:17,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:37:17,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:17,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:37:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:17,969 INFO L87 Difference]: Start difference. First operand 532 states and 659 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 5 states have internal predecessors, (43), 3 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 08:37:19,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:19,496 INFO L93 Difference]: Finished difference Result 577 states and 711 transitions. [2021-10-28 08:37:19,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:37:19,497 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 5 states have internal predecessors, (43), 3 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 57 [2021-10-28 08:37:19,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:19,503 INFO L225 Difference]: With dead ends: 577 [2021-10-28 08:37:19,503 INFO L226 Difference]: Without dead ends: 552 [2021-10-28 08:37:19,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2021-10-28 08:37:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 523. [2021-10-28 08:37:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 415 states have (on average 1.236144578313253) internal successors, (513), 424 states have internal predecessors, (513), 60 states have call successors, (60), 42 states have call predecessors, (60), 47 states have return successors, (74), 57 states have call predecessors, (74), 53 states have call successors, (74) [2021-10-28 08:37:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 647 transitions. [2021-10-28 08:37:19,523 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 647 transitions. Word has length 57 [2021-10-28 08:37:19,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:19,524 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 647 transitions. [2021-10-28 08:37:19,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 5 states have internal predecessors, (43), 3 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 08:37:19,525 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 647 transitions. [2021-10-28 08:37:19,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 08:37:19,527 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:19,527 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 08:37:19,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-28 08:37:19,527 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash -171418186, now seen corresponding path program 1 times [2021-10-28 08:37:19,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:19,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319965415] [2021-10-28 08:37:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:19,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:19,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-10-28 08:37:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:19,843 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 08:37:19,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:19,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319965415] [2021-10-28 08:37:19,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319965415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:19,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:19,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 08:37:19,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992203480] [2021-10-28 08:37:19,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:37:19,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:19,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:37:19,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:37:19,846 INFO L87 Difference]: Start difference. First operand 523 states and 647 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (7), 7 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 08:37:21,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:21,626 INFO L93 Difference]: Finished difference Result 556 states and 684 transitions. [2021-10-28 08:37:21,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:21,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (7), 7 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 56 [2021-10-28 08:37:21,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:21,630 INFO L225 Difference]: With dead ends: 556 [2021-10-28 08:37:21,630 INFO L226 Difference]: Without dead ends: 542 [2021-10-28 08:37:21,630 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:37:21,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-10-28 08:37:21,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 505. [2021-10-28 08:37:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 400 states have (on average 1.24) internal successors, (496), 408 states have internal predecessors, (496), 59 states have call successors, (59), 42 states have call predecessors, (59), 45 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2021-10-28 08:37:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 622 transitions. [2021-10-28 08:37:21,647 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 622 transitions. Word has length 56 [2021-10-28 08:37:21,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:21,647 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 622 transitions. [2021-10-28 08:37:21,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (7), 7 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 08:37:21,648 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 622 transitions. [2021-10-28 08:37:21,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 08:37:21,650 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:21,650 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 08:37:21,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-28 08:37:21,650 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:21,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:21,651 INFO L85 PathProgramCache]: Analyzing trace with hash 196319194, now seen corresponding path program 1 times [2021-10-28 08:37:21,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:21,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119817288] [2021-10-28 08:37:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:21,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-10-28 08:37:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:21,958 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 08:37:21,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:21,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119817288] [2021-10-28 08:37:21,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119817288] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:21,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:21,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:37:21,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265472801] [2021-10-28 08:37:21,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:37:21,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:21,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:37:21,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:21,961 INFO L87 Difference]: Start difference. First operand 505 states and 622 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 08:37:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:23,671 INFO L93 Difference]: Finished difference Result 538 states and 663 transitions. [2021-10-28 08:37:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:37:23,672 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-10-28 08:37:23,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:23,676 INFO L225 Difference]: With dead ends: 538 [2021-10-28 08:37:23,676 INFO L226 Difference]: Without dead ends: 538 [2021-10-28 08:37:23,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:37:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-28 08:37:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 505. [2021-10-28 08:37:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 400 states have (on average 1.235) internal successors, (494), 408 states have internal predecessors, (494), 59 states have call successors, (59), 42 states have call predecessors, (59), 45 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2021-10-28 08:37:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 620 transitions. [2021-10-28 08:37:23,693 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 620 transitions. Word has length 65 [2021-10-28 08:37:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:23,694 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 620 transitions. [2021-10-28 08:37:23,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 08:37:23,694 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 620 transitions. [2021-10-28 08:37:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 08:37:23,696 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:23,696 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 08:37:23,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-28 08:37:23,697 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:23,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:23,697 INFO L85 PathProgramCache]: Analyzing trace with hash -828158382, now seen corresponding path program 1 times [2021-10-28 08:37:23,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:23,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378584742] [2021-10-28 08:37:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:23,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:23,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 08:37:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:23,944 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 08:37:23,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:23,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378584742] [2021-10-28 08:37:23,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378584742] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:23,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:23,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 08:37:23,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241915267] [2021-10-28 08:37:23,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:37:23,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:37:23,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:37:23,947 INFO L87 Difference]: Start difference. First operand 505 states and 620 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:37:25,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:25,026 INFO L93 Difference]: Finished difference Result 534 states and 650 transitions. [2021-10-28 08:37:25,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:37:25,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2021-10-28 08:37:25,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:25,030 INFO L225 Difference]: With dead ends: 534 [2021-10-28 08:37:25,030 INFO L226 Difference]: Without dead ends: 534 [2021-10-28 08:37:25,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:37:25,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-10-28 08:37:25,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 504. [2021-10-28 08:37:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 399 states have (on average 1.2230576441102756) internal successors, (488), 407 states have internal predecessors, (488), 59 states have call successors, (59), 42 states have call predecessors, (59), 45 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2021-10-28 08:37:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 614 transitions. [2021-10-28 08:37:25,046 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 614 transitions. Word has length 59 [2021-10-28 08:37:25,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:25,046 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 614 transitions. [2021-10-28 08:37:25,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:37:25,047 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 614 transitions. [2021-10-28 08:37:25,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:37:25,049 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:25,049 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 08:37:25,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-28 08:37:25,049 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:25,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:25,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1679156148, now seen corresponding path program 1 times [2021-10-28 08:37:25,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:25,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961068810] [2021-10-28 08:37:25,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:25,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:25,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:25,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:25,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 08:37:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:25,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:25,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961068810] [2021-10-28 08:37:25,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961068810] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:25,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:25,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 08:37:25,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249317469] [2021-10-28 08:37:25,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:37:25,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:25,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:37:25,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:37:25,384 INFO L87 Difference]: Start difference. First operand 504 states and 614 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:37:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:27,134 INFO L93 Difference]: Finished difference Result 758 states and 898 transitions. [2021-10-28 08:37:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 08:37:27,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2021-10-28 08:37:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:27,139 INFO L225 Difference]: With dead ends: 758 [2021-10-28 08:37:27,139 INFO L226 Difference]: Without dead ends: 758 [2021-10-28 08:37:27,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:37:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-10-28 08:37:27,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 616. [2021-10-28 08:37:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 493 states have (on average 1.208924949290061) internal successors, (596), 501 states have internal predecessors, (596), 67 states have call successors, (67), 50 states have call predecessors, (67), 55 states have return successors, (77), 65 states have call predecessors, (77), 60 states have call successors, (77) [2021-10-28 08:37:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 740 transitions. [2021-10-28 08:37:27,156 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 740 transitions. Word has length 61 [2021-10-28 08:37:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:27,157 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 740 transitions. [2021-10-28 08:37:27,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:37:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 740 transitions. [2021-10-28 08:37:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:37:27,159 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:27,159 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 08:37:27,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-28 08:37:27,160 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:27,160 INFO L85 PathProgramCache]: Analyzing trace with hash -621666442, now seen corresponding path program 1 times [2021-10-28 08:37:27,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:27,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363552557] [2021-10-28 08:37:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:27,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:27,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:27,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 08:37:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:27,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:27,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363552557] [2021-10-28 08:37:27,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363552557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:27,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:27,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 08:37:27,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667089977] [2021-10-28 08:37:27,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:37:27,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:27,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:37:27,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:37:27,451 INFO L87 Difference]: Start difference. First operand 616 states and 740 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:37:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:28,771 INFO L93 Difference]: Finished difference Result 641 states and 773 transitions. [2021-10-28 08:37:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:28,771 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2021-10-28 08:37:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:28,774 INFO L225 Difference]: With dead ends: 641 [2021-10-28 08:37:28,774 INFO L226 Difference]: Without dead ends: 641 [2021-10-28 08:37:28,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2021-10-28 08:37:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 589. [2021-10-28 08:37:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 471 states have (on average 1.2123142250530785) internal successors, (571), 479 states have internal predecessors, (571), 65 states have call successors, (65), 48 states have call predecessors, (65), 52 states have return successors, (74), 62 states have call predecessors, (74), 58 states have call successors, (74) [2021-10-28 08:37:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 710 transitions. [2021-10-28 08:37:28,792 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 710 transitions. Word has length 61 [2021-10-28 08:37:28,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:28,793 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 710 transitions. [2021-10-28 08:37:28,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:37:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 710 transitions. [2021-10-28 08:37:28,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 08:37:28,797 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:28,798 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 08:37:28,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-28 08:37:28,798 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:28,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash -495774537, now seen corresponding path program 1 times [2021-10-28 08:37:28,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:28,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876900196] [2021-10-28 08:37:28,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:28,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:29,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:29,131 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 08:37:29,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:29,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876900196] [2021-10-28 08:37:29,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876900196] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:29,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:29,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 08:37:29,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873893642] [2021-10-28 08:37:29,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:37:29,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:37:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:37:29,134 INFO L87 Difference]: Start difference. First operand 589 states and 710 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 7 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 08:37:30,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:30,706 INFO L93 Difference]: Finished difference Result 650 states and 781 transitions. [2021-10-28 08:37:30,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:30,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 7 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 60 [2021-10-28 08:37:30,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:30,711 INFO L225 Difference]: With dead ends: 650 [2021-10-28 08:37:30,711 INFO L226 Difference]: Without dead ends: 632 [2021-10-28 08:37:30,712 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:30,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2021-10-28 08:37:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 585. [2021-10-28 08:37:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 468 states have (on average 1.2115384615384615) internal successors, (567), 476 states have internal predecessors, (567), 64 states have call successors, (64), 48 states have call predecessors, (64), 52 states have return successors, (73), 61 states have call predecessors, (73), 57 states have call successors, (73) [2021-10-28 08:37:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 704 transitions. [2021-10-28 08:37:30,729 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 704 transitions. Word has length 60 [2021-10-28 08:37:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:30,730 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 704 transitions. [2021-10-28 08:37:30,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 7 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 08:37:30,730 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 704 transitions. [2021-10-28 08:37:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 08:37:30,732 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:30,732 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 08:37:30,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-28 08:37:30,733 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:30,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:30,733 INFO L85 PathProgramCache]: Analyzing trace with hash -518955678, now seen corresponding path program 1 times [2021-10-28 08:37:30,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:30,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175952022] [2021-10-28 08:37:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:30,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:30,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-10-28 08:37:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:31,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:31,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175952022] [2021-10-28 08:37:31,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175952022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:31,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:31,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:37:31,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414946331] [2021-10-28 08:37:31,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:37:31,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:31,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:37:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:31,090 INFO L87 Difference]: Start difference. First operand 585 states and 704 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 08:37:32,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:32,429 INFO L93 Difference]: Finished difference Result 669 states and 804 transitions. [2021-10-28 08:37:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 08:37:32,445 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2021-10-28 08:37:32,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:32,449 INFO L225 Difference]: With dead ends: 669 [2021-10-28 08:37:32,449 INFO L226 Difference]: Without dead ends: 669 [2021-10-28 08:37:32,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:32,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2021-10-28 08:37:32,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 585. [2021-10-28 08:37:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 468 states have (on average 1.2072649572649572) internal successors, (565), 476 states have internal predecessors, (565), 64 states have call successors, (64), 48 states have call predecessors, (64), 52 states have return successors, (73), 61 states have call predecessors, (73), 57 states have call successors, (73) [2021-10-28 08:37:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 702 transitions. [2021-10-28 08:37:32,468 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 702 transitions. Word has length 68 [2021-10-28 08:37:32,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:32,469 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 702 transitions. [2021-10-28 08:37:32,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 08:37:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 702 transitions. [2021-10-28 08:37:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:37:32,471 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:32,471 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 08:37:32,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-28 08:37:32,472 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash -908431933, now seen corresponding path program 1 times [2021-10-28 08:37:32,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:32,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741857924] [2021-10-28 08:37:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:32,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:32,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:32,797 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 08:37:32,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:32,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741857924] [2021-10-28 08:37:32,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741857924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:32,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:32,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 08:37:32,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679265997] [2021-10-28 08:37:32,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:37:32,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:32,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:37:32,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:37:32,800 INFO L87 Difference]: Start difference. First operand 585 states and 702 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (7), 7 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 08:37:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:33,981 INFO L93 Difference]: Finished difference Result 646 states and 773 transitions. [2021-10-28 08:37:33,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:33,982 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (7), 7 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 61 [2021-10-28 08:37:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:33,985 INFO L225 Difference]: With dead ends: 646 [2021-10-28 08:37:33,986 INFO L226 Difference]: Without dead ends: 627 [2021-10-28 08:37:33,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-10-28 08:37:34,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 580. [2021-10-28 08:37:34,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 464 states have (on average 1.206896551724138) internal successors, (560), 472 states have internal predecessors, (560), 63 states have call successors, (63), 48 states have call predecessors, (63), 52 states have return successors, (72), 60 states have call predecessors, (72), 56 states have call successors, (72) [2021-10-28 08:37:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 695 transitions. [2021-10-28 08:37:34,004 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 695 transitions. Word has length 61 [2021-10-28 08:37:34,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:34,004 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 695 transitions. [2021-10-28 08:37:34,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (7), 7 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 08:37:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 695 transitions. [2021-10-28 08:37:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:37:34,007 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:34,007 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 08:37:34,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-28 08:37:34,007 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1838543403, now seen corresponding path program 1 times [2021-10-28 08:37:34,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:34,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287788055] [2021-10-28 08:37:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:34,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:34,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:34,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:34,335 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 08:37:34,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:34,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287788055] [2021-10-28 08:37:34,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287788055] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:34,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:34,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 08:37:34,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835524923] [2021-10-28 08:37:34,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:37:34,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:34,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:37:34,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:37:34,339 INFO L87 Difference]: Start difference. First operand 580 states and 695 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (7), 7 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 08:37:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:35,718 INFO L93 Difference]: Finished difference Result 641 states and 766 transitions. [2021-10-28 08:37:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:35,718 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (7), 7 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 61 [2021-10-28 08:37:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:35,721 INFO L225 Difference]: With dead ends: 641 [2021-10-28 08:37:35,721 INFO L226 Difference]: Without dead ends: 623 [2021-10-28 08:37:35,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:35,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-10-28 08:37:35,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 576. [2021-10-28 08:37:35,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 461 states have (on average 1.2060737527114966) internal successors, (556), 469 states have internal predecessors, (556), 62 states have call successors, (62), 48 states have call predecessors, (62), 52 states have return successors, (71), 59 states have call predecessors, (71), 55 states have call successors, (71) [2021-10-28 08:37:35,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 689 transitions. [2021-10-28 08:37:35,739 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 689 transitions. Word has length 61 [2021-10-28 08:37:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:35,739 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 689 transitions. [2021-10-28 08:37:35,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (7), 7 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 08:37:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 689 transitions. [2021-10-28 08:37:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 08:37:35,741 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:35,742 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 08:37:35,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-28 08:37:35,742 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:35,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:35,743 INFO L85 PathProgramCache]: Analyzing trace with hash 252983849, now seen corresponding path program 1 times [2021-10-28 08:37:35,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:35,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416132792] [2021-10-28 08:37:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:35,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:35,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:35,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-10-28 08:37:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:36,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:36,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:36,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:36,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416132792] [2021-10-28 08:37:36,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416132792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:36,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:36,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 08:37:36,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729018004] [2021-10-28 08:37:36,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:37:36,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:36,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:37:36,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:37:36,036 INFO L87 Difference]: Start difference. First operand 576 states and 689 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 08:37:36,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:36,938 INFO L93 Difference]: Finished difference Result 767 states and 918 transitions. [2021-10-28 08:37:36,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:37:36,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2021-10-28 08:37:36,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:36,942 INFO L225 Difference]: With dead ends: 767 [2021-10-28 08:37:36,942 INFO L226 Difference]: Without dead ends: 767 [2021-10-28 08:37:36,944 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:37:36,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-10-28 08:37:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 697. [2021-10-28 08:37:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 554 states have (on average 1.2021660649819494) internal successors, (666), 564 states have internal predecessors, (666), 75 states have call successors, (75), 58 states have call predecessors, (75), 67 states have return successors, (96), 75 states have call predecessors, (96), 69 states have call successors, (96) [2021-10-28 08:37:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 837 transitions. [2021-10-28 08:37:36,963 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 837 transitions. Word has length 67 [2021-10-28 08:37:36,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:36,964 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 837 transitions. [2021-10-28 08:37:36,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 08:37:36,964 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 837 transitions. [2021-10-28 08:37:36,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 08:37:36,967 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:36,967 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 08:37:36,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-28 08:37:36,967 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:36,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash 694916100, now seen corresponding path program 1 times [2021-10-28 08:37:36,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:36,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963633987] [2021-10-28 08:37:36,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:36,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:37,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:37,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:37,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:37,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-10-28 08:37:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:37,316 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 08:37:37,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:37,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963633987] [2021-10-28 08:37:37,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963633987] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:37,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:37,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 08:37:37,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888691949] [2021-10-28 08:37:37,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:37:37,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:37,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:37:37,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:37:37,319 INFO L87 Difference]: Start difference. First operand 697 states and 837 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (7), 7 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 08:37:38,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:38,704 INFO L93 Difference]: Finished difference Result 758 states and 909 transitions. [2021-10-28 08:37:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:37:38,705 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (7), 7 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 65 [2021-10-28 08:37:38,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:38,709 INFO L225 Difference]: With dead ends: 758 [2021-10-28 08:37:38,709 INFO L226 Difference]: Without dead ends: 718 [2021-10-28 08:37:38,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-10-28 08:37:38,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 671. [2021-10-28 08:37:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 533 states have (on average 1.200750469043152) internal successors, (640), 543 states have internal predecessors, (640), 72 states have call successors, (72), 56 states have call predecessors, (72), 65 states have return successors, (93), 72 states have call predecessors, (93), 66 states have call successors, (93) [2021-10-28 08:37:38,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 805 transitions. [2021-10-28 08:37:38,725 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 805 transitions. Word has length 65 [2021-10-28 08:37:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:38,725 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 805 transitions. [2021-10-28 08:37:38,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (7), 7 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 08:37:38,726 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 805 transitions. [2021-10-28 08:37:38,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-28 08:37:38,728 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:38,728 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] [2021-10-28 08:37:38,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-28 08:37:38,728 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:38,729 INFO L85 PathProgramCache]: Analyzing trace with hash 989713954, now seen corresponding path program 1 times [2021-10-28 08:37:38,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:38,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117979898] [2021-10-28 08:37:38,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:38,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-10-28 08:37:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:39,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:39,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-10-28 08:37:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:39,064 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 08:37:39,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:39,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117979898] [2021-10-28 08:37:39,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117979898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:39,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:39,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:37:39,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037134580] [2021-10-28 08:37:39,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:37:39,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:39,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:37:39,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:39,068 INFO L87 Difference]: Start difference. First operand 671 states and 805 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 08:37:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:40,778 INFO L93 Difference]: Finished difference Result 706 states and 841 transitions. [2021-10-28 08:37:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 08:37:40,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2021-10-28 08:37:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:40,783 INFO L225 Difference]: With dead ends: 706 [2021-10-28 08:37:40,783 INFO L226 Difference]: Without dead ends: 706 [2021-10-28 08:37:40,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:37:40,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-28 08:37:40,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 653. [2021-10-28 08:37:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 519 states have (on average 1.2003853564547207) internal successors, (623), 528 states have internal predecessors, (623), 70 states have call successors, (70), 56 states have call predecessors, (70), 63 states have return successors, (82), 69 states have call predecessors, (82), 64 states have call successors, (82) [2021-10-28 08:37:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 775 transitions. [2021-10-28 08:37:40,815 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 775 transitions. Word has length 79 [2021-10-28 08:37:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:40,816 INFO L470 AbstractCegarLoop]: Abstraction has 653 states and 775 transitions. [2021-10-28 08:37:40,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 08:37:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 775 transitions. [2021-10-28 08:37:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-28 08:37:40,820 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:40,820 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, 1] [2021-10-28 08:37:40,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-28 08:37:40,821 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1026344045, now seen corresponding path program 1 times [2021-10-28 08:37:40,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:40,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696223792] [2021-10-28 08:37:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:40,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:40,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-10-28 08:37:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-10-28 08:37:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:41,199 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 08:37:41,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:41,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696223792] [2021-10-28 08:37:41,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696223792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:41,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:41,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 08:37:41,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515470935] [2021-10-28 08:37:41,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:37:41,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:41,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:37:41,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:37:41,202 INFO L87 Difference]: Start difference. First operand 653 states and 775 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 08:37:42,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:42,411 INFO L93 Difference]: Finished difference Result 804 states and 992 transitions. [2021-10-28 08:37:42,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:37:42,411 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2021-10-28 08:37:42,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:42,416 INFO L225 Difference]: With dead ends: 804 [2021-10-28 08:37:42,416 INFO L226 Difference]: Without dead ends: 804 [2021-10-28 08:37:42,416 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:37:42,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-10-28 08:37:42,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 617. [2021-10-28 08:37:42,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 495 states have (on average 1.2) internal successors, (594), 502 states have internal predecessors, (594), 63 states have call successors, (63), 50 states have call predecessors, (63), 58 states have return successors, (72), 65 states have call predecessors, (72), 58 states have call successors, (72) [2021-10-28 08:37:42,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 729 transitions. [2021-10-28 08:37:42,436 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 729 transitions. Word has length 80 [2021-10-28 08:37:42,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:42,437 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 729 transitions. [2021-10-28 08:37:42,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 08:37:42,437 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 729 transitions. [2021-10-28 08:37:42,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-28 08:37:42,440 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:42,440 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, 1, 1, 1, 1, 1, 1] [2021-10-28 08:37:42,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-28 08:37:42,441 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:42,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:42,441 INFO L85 PathProgramCache]: Analyzing trace with hash 530825079, now seen corresponding path program 1 times [2021-10-28 08:37:42,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:42,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983578903] [2021-10-28 08:37:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:42,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-10-28 08:37:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:42,833 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 08:37:42,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:42,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983578903] [2021-10-28 08:37:42,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983578903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:42,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:42,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 08:37:42,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792724043] [2021-10-28 08:37:42,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:37:42,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:37:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:42,838 INFO L87 Difference]: Start difference. First operand 617 states and 729 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (11), 9 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 08:37:44,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:44,306 INFO L93 Difference]: Finished difference Result 724 states and 853 transitions. [2021-10-28 08:37:44,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 08:37:44,307 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (11), 9 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 85 [2021-10-28 08:37:44,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:44,310 INFO L225 Difference]: With dead ends: 724 [2021-10-28 08:37:44,310 INFO L226 Difference]: Without dead ends: 706 [2021-10-28 08:37:44,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2021-10-28 08:37:44,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-28 08:37:44,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 625. [2021-10-28 08:37:44,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 502 states have (on average 1.197211155378486) internal successors, (601), 509 states have internal predecessors, (601), 63 states have call successors, (63), 50 states have call predecessors, (63), 59 states have return successors, (75), 66 states have call predecessors, (75), 58 states have call successors, (75) [2021-10-28 08:37:44,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 739 transitions. [2021-10-28 08:37:44,328 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 739 transitions. Word has length 85 [2021-10-28 08:37:44,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:44,328 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 739 transitions. [2021-10-28 08:37:44,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (11), 9 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 08:37:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 739 transitions. [2021-10-28 08:37:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-28 08:37:44,331 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:44,332 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:37:44,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-28 08:37:44,332 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash -906533116, now seen corresponding path program 1 times [2021-10-28 08:37:44,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:44,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407271410] [2021-10-28 08:37:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:44,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:37:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-10-28 08:37:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 08:37:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-10-28 08:37:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:44,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:44,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407271410] [2021-10-28 08:37:44,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407271410] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:44,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:44,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-10-28 08:37:44,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031693700] [2021-10-28 08:37:44,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:37:44,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:37:44,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:37:44,723 INFO L87 Difference]: Start difference. First operand 625 states and 739 transitions. Second operand has 16 states, 16 states have (on average 4.125) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (11), 9 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 08:37:46,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:46,026 INFO L93 Difference]: Finished difference Result 724 states and 852 transitions. [2021-10-28 08:37:46,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 08:37:46,028 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (11), 9 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 86 [2021-10-28 08:37:46,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:46,031 INFO L225 Difference]: With dead ends: 724 [2021-10-28 08:37:46,031 INFO L226 Difference]: Without dead ends: 706 [2021-10-28 08:37:46,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:37:46,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-28 08:37:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 617. [2021-10-28 08:37:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 495 states have (on average 1.197979797979798) internal successors, (593), 502 states have internal predecessors, (593), 63 states have call successors, (63), 50 states have call predecessors, (63), 58 states have return successors, (72), 65 states have call predecessors, (72), 58 states have call successors, (72) [2021-10-28 08:37:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 728 transitions. [2021-10-28 08:37:46,048 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 728 transitions. Word has length 86 [2021-10-28 08:37:46,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:46,049 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 728 transitions. [2021-10-28 08:37:46,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (11), 9 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 08:37:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 728 transitions. [2021-10-28 08:37:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-28 08:37:46,052 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:46,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:37:46,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-28 08:37:46,052 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:46,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:46,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2023461198, now seen corresponding path program 1 times [2021-10-28 08:37:46,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:46,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482310141] [2021-10-28 08:37:46,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:46,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:37:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:37:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-10-28 08:37:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-10-28 08:37:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 08:37:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-10-28 08:37:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:46,399 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 08:37:46,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:37:46,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482310141] [2021-10-28 08:37:46,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482310141] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:46,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:46,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 08:37:46,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347510275] [2021-10-28 08:37:46,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:37:46,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:37:46,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:37:46,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:37:46,402 INFO L87 Difference]: Start difference. First operand 617 states and 728 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 5 states have internal predecessors, (65), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 08:37:48,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:48,061 INFO L93 Difference]: Finished difference Result 764 states and 884 transitions. [2021-10-28 08:37:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:37:48,061 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 5 states have internal predecessors, (65), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 81 [2021-10-28 08:37:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:48,066 INFO L225 Difference]: With dead ends: 764 [2021-10-28 08:37:48,066 INFO L226 Difference]: Without dead ends: 764 [2021-10-28 08:37:48,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:37:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-10-28 08:37:48,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 738. [2021-10-28 08:37:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 592 states have (on average 1.1891891891891893) internal successors, (704), 601 states have internal predecessors, (704), 71 states have call successors, (71), 62 states have call predecessors, (71), 74 states have return successors, (84), 75 states have call predecessors, (84), 66 states have call successors, (84) [2021-10-28 08:37:48,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 859 transitions. [2021-10-28 08:37:48,087 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 859 transitions. Word has length 81 [2021-10-28 08:37:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:48,087 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 859 transitions. [2021-10-28 08:37:48,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 5 states have internal predecessors, (65), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 08:37:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 859 transitions. [2021-10-28 08:37:48,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-28 08:37:48,090 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:48,091 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, 1, 1, 1] [2021-10-28 08:37:48,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-28 08:37:48,091 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:48,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1875622583, now seen corresponding path program 1 times [2021-10-28 08:37:48,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:37:48,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483211400] [2021-10-28 08:37:48,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:48,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:37:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:37:48,119 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:37:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:37:48,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:37:48,241 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:37:48,242 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 08:37:48,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:37:48,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-28 08:37:48,248 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] [2021-10-28 08:37:48,252 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:37:48,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:37:48 BoogieIcfgContainer [2021-10-28 08:37:48,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:37:48,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:37:48,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:37:48,427 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:37:48,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:36:36" (3/4) ... [2021-10-28 08:37:48,431 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:37:48,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:37:48,433 INFO L168 Benchmark]: Toolchain (without parser) took 74505.51 ms. Allocated memory was 98.6 MB in the beginning and 314.6 MB in the end (delta: 216.0 MB). Free memory was 63.6 MB in the beginning and 262.1 MB in the end (delta: -198.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:48,434 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:37:48,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.31 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 62.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:48,435 INFO L168 Benchmark]: Boogie Preprocessor took 132.52 ms. Allocated memory is still 98.6 MB. Free memory was 62.4 MB in the beginning and 58.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:48,435 INFO L168 Benchmark]: RCFGBuilder took 1397.08 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 58.9 MB in the beginning and 72.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:48,436 INFO L168 Benchmark]: TraceAbstraction took 72255.59 ms. Allocated memory was 123.7 MB in the beginning and 314.6 MB in the end (delta: 190.8 MB). Free memory was 71.4 MB in the beginning and 262.1 MB in the end (delta: -190.7 MB). Peak memory consumption was 167.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:48,436 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 314.6 MB. Free memory is still 262.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:37:48,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 708.31 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 62.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 132.52 ms. Allocated memory is still 98.6 MB. Free memory was 62.4 MB in the beginning and 58.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1397.08 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 58.9 MB in the beginning and 72.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 72255.59 ms. Allocated memory was 123.7 MB in the beginning and 314.6 MB in the end (delta: 190.8 MB). Free memory was 71.4 MB in the beginning and 262.1 MB in the end (delta: -190.7 MB). Peak memory consumption was 167.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 314.6 MB. Free memory is still 262.1 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: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [\old(compRegistered)=260, \old(customIrp)=265, \old(DC)=288, \old(DiskController)=263, \old(Executive)=286, \old(FlConfigCallBack)=268, \old(FloppyDiskPeripheral)=291, \old(FloppyThread)=261, \old(IPC)=274, \old(KernelMode)=270, \old(lowerDriverReturn)=275, \old(MaximumInterfaceType)=292, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=281, \old(MPR1)=283, \old(MPR3)=293, \old(myStatus)=287, \old(NP)=266, \old(PagingMutex)=284, \old(PagingReferenceCount)=289, \old(pended)=285, \old(s)=271, \old(setEventCalled)=262, \old(SKIP1)=269, \old(SKIP2)=280, \old(Suspended)=282, \old(UNLOADED)=273, compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=0, UNLOADED=0] [L708] CALL _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L708] RET _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] CALL stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] RET stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] CALL, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-6, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-7, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-6, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-7, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-6, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-7, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-6, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-7, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L160] return (259); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=-6, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-7, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L259] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265-L266] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1045] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1049] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1064] return (0); VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L265-L266] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L1006] return (returnVal2); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-2, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-8, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L284] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=-4, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-2, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] RET, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyPnp(devobj, pirp)=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L767] COND TRUE status != -1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L783] COND TRUE status != 259 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L784] CALL errorFn() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 670]: 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 27 procedures, 309 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 72.0s, OverallIterations: 40, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 57.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 13643 SDtfs, 19574 SDslu, 25608 SDs, 0 SdLazy, 45139 SolverSat, 6663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 874 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 503 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=845occurred in iteration=11, InterpolantAutomatonStates: 441, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 39 MinimizatonAttempts, 2306 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 2190 NumberOfCodeBlocks, 2190 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2069 ConstructedInterpolants, 0 QuantifiedInterpolants, 11653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 08:37:48,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/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 08:37:51,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:37:51,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:37:51,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:37:51,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:37:51,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:37:51,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:37:51,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:37:51,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:37:51,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:37:51,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:37:51,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:37:51,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:37:51,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:37:51,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:37:51,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:37:51,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:37:51,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:37:51,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:37:51,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:37:51,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:37:51,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:37:51,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:37:51,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:37:51,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:37:51,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:37:51,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:37:51,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:37:51,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:37:51,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-10-28 08:37:51,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:37:51,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:37:51,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:37:51,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 08:37:51,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:37:51,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:37:51,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:37:51,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:37:51,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:37:51,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:37:51,467 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:37:51,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:37:51,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:37:51,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:37:51,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:37:51,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:37:51,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:37:51,470 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:37:51,470 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:37:51,471 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:37:51,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:37:51,471 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:37:51,471 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:37:51,472 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:37:51,472 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:37:51,472 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:37:51,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:37:51,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:37:51,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:37:51,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:37:51,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:37:51,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:37:51,475 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:37:51,475 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:37:51,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:37:51,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:37:51,476 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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2021-10-28 08:37:51,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:37:51,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:37:51,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:37:52,000 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:37:52,001 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:37:52,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-28 08:37:52,097 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/54627eb6f/3e4f338908ef4ffa938b8f6687f8aaaa/FLAGdea7bf82a [2021-10-28 08:37:52,754 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:37:52,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-28 08:37:52,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/54627eb6f/3e4f338908ef4ffa938b8f6687f8aaaa/FLAGdea7bf82a [2021-10-28 08:37:53,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/data/54627eb6f/3e4f338908ef4ffa938b8f6687f8aaaa [2021-10-28 08:37:53,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:37:53,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:37:53,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:37:53,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:37:53,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:37:53,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10cda195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53, skipping insertion in model container [2021-10-28 08:37:53,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:37:53,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:37:53,316 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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-28 08:37:53,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:37:53,466 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:37:53,512 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_e31cb00d-4b18-4847-925b-e5d2a41eb06c/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-28 08:37:53,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:37:53,656 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:37:53,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53 WrapperNode [2021-10-28 08:37:53,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:37:53,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:37:53,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:37:53,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:37:53,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:37:53,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:37:53,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:37:53,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:37:53,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (1/1) ... [2021-10-28 08:37:53,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:37:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:37:53,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:37:53,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:37:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:37:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:37:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 08:37:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-10-28 08:37:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-10-28 08:37:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2021-10-28 08:37:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2021-10-28 08:37:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2021-10-28 08:37:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2021-10-28 08:37:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2021-10-28 08:37:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2021-10-28 08:37:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2021-10-28 08:37:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-10-28 08:37:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:37:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2021-10-28 08:37:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2021-10-28 08:37:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2021-10-28 08:37:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2021-10-28 08:37:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-10-28 08:37:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-10-28 08:37:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-10-28 08:37:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-10-28 08:37:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-10-28 08:37:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-10-28 08:37:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2021-10-28 08:37:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2021-10-28 08:37:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-10-28 08:37:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:37:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 08:37:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 08:37:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:37:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-10-28 08:37:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:37:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-10-28 08:37:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2021-10-28 08:37:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2021-10-28 08:37:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2021-10-28 08:37:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2021-10-28 08:37:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2021-10-28 08:37:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2021-10-28 08:37:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2021-10-28 08:37:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2021-10-28 08:37:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2021-10-28 08:37:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2021-10-28 08:37:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-10-28 08:37:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-10-28 08:37:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-10-28 08:37:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-10-28 08:37:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2021-10-28 08:37:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2021-10-28 08:37:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-10-28 08:37:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-10-28 08:37:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-10-28 08:37:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-10-28 08:37:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2021-10-28 08:37:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-10-28 08:37:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:37:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-10-28 08:37:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:37:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 08:37:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:37:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 08:37:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 08:37:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:37:54,315 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,366 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:54,375 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:54,393 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:54,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:54,425 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,717 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-10-28 08:37:54,718 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-10-28 08:37:54,720 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,803 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-10-28 08:37:54,803 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-10-28 08:37:54,815 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,874 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-10-28 08:37:54,875 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-10-28 08:37:54,962 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,972 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:54,973 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:54,973 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,982 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:54,982 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:54,983 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:54,996 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:54,996 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:55,047 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-10-28 08:37:55,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-10-28 08:37:55,142 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:55,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:55,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:55,151 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:55,163 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:55,163 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:55,164 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:37:55,171 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-10-28 08:37:55,172 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-10-28 08:37:55,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:37:55,221 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 08:37:55,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:37:55 BoogieIcfgContainer [2021-10-28 08:37:55,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:37:55,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:37:55,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:37:55,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:37:55,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:37:53" (1/3) ... [2021-10-28 08:37:55,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6825bf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:37:55, skipping insertion in model container [2021-10-28 08:37:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:37:53" (2/3) ... [2021-10-28 08:37:55,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6825bf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:37:55, skipping insertion in model container [2021-10-28 08:37:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:37:55" (3/3) ... [2021-10-28 08:37:55,235 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-10-28 08:37:55,241 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:37:55,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 08:37:55,299 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:37:55,310 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 08:37:55,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 08:37:55,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 219 states have (on average 1.4292237442922375) internal successors, (313), 243 states have internal predecessors, (313), 57 states have call successors, (57), 24 states have call predecessors, (57), 24 states have return successors, (57), 51 states have call predecessors, (57), 57 states have call successors, (57) [2021-10-28 08:37:55,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 08:37:55,351 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:55,352 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:37:55,353 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:55,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:55,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1798557025, now seen corresponding path program 1 times [2021-10-28 08:37:55,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:37:55,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888580662] [2021-10-28 08:37:55,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:55,378 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:37:55,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:37:55,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:37:55,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:37:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:55,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 08:37:55,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:37:55,833 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 08:37:55,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:37:55,896 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 08:37:55,897 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:37:55,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888580662] [2021-10-28 08:37:55,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888580662] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:55,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:55,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-28 08:37:55,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207621018] [2021-10-28 08:37:55,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:37:55,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:37:55,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:37:55,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:37:55,931 INFO L87 Difference]: Start difference. First operand has 303 states, 219 states have (on average 1.4292237442922375) internal successors, (313), 243 states have internal predecessors, (313), 57 states have call successors, (57), 24 states have call predecessors, (57), 24 states have return successors, (57), 51 states have call predecessors, (57), 57 states have call successors, (57) 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 08:37:55,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:55,982 INFO L93 Difference]: Finished difference Result 300 states and 403 transitions. [2021-10-28 08:37:55,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:37:55,984 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 08:37:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:56,003 INFO L225 Difference]: With dead ends: 300 [2021-10-28 08:37:56,003 INFO L226 Difference]: Without dead ends: 294 [2021-10-28 08:37:56,005 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 08:37:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-10-28 08:37:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-10-28 08:37:56,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 214 states have (on average 1.3785046728971964) internal successors, (295), 235 states have internal predecessors, (295), 57 states have call successors, (57), 24 states have call predecessors, (57), 22 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2021-10-28 08:37:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 389 transitions. [2021-10-28 08:37:56,089 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 389 transitions. Word has length 15 [2021-10-28 08:37:56,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:56,090 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 389 transitions. [2021-10-28 08:37:56,090 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 08:37:56,091 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 389 transitions. [2021-10-28 08:37:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 08:37:56,092 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:56,093 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 08:37:56,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:37:56,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:37:56,313 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:56,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash -477224522, now seen corresponding path program 1 times [2021-10-28 08:37:56,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:37:56,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327175104] [2021-10-28 08:37:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:56,316 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:37:56,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:37:56,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:37:56,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:37:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:56,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:37:56,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:37:56,735 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 08:37:56,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:37:56,819 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 08:37:56,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:37:56,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327175104] [2021-10-28 08:37:56,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327175104] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:56,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:56,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 08:37:56,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313642500] [2021-10-28 08:37:56,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:37:56,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:37:56,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:37:56,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:37:56,825 INFO L87 Difference]: Start difference. First operand 294 states and 389 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 08:37:56,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:56,911 INFO L93 Difference]: Finished difference Result 294 states and 388 transitions. [2021-10-28 08:37:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:37:56,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2021-10-28 08:37:56,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:56,925 INFO L225 Difference]: With dead ends: 294 [2021-10-28 08:37:56,929 INFO L226 Difference]: Without dead ends: 294 [2021-10-28 08:37:56,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:37:56,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-10-28 08:37:56,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-10-28 08:37:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 214 states have (on average 1.3738317757009346) internal successors, (294), 235 states have internal predecessors, (294), 57 states have call successors, (57), 24 states have call predecessors, (57), 22 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2021-10-28 08:37:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 388 transitions. [2021-10-28 08:37:56,982 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 388 transitions. Word has length 20 [2021-10-28 08:37:56,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:56,983 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 388 transitions. [2021-10-28 08:37:56,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 08:37:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 388 transitions. [2021-10-28 08:37:56,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:37:56,985 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:56,985 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] [2021-10-28 08:37:57,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:37:57,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:37:57,201 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:57,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:57,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1351580342, now seen corresponding path program 1 times [2021-10-28 08:37:57,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:37:57,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82491558] [2021-10-28 08:37:57,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:57,204 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:37:57,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:37:57,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:37:57,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:37:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:57,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:37:57,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:37:57,843 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 08:37:57,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:37:57,979 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 08:37:57,980 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:37:57,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82491558] [2021-10-28 08:37:57,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82491558] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:57,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:57,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-10-28 08:37:57,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198446177] [2021-10-28 08:37:57,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:37:57,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:37:57,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:37:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:37:57,988 INFO L87 Difference]: Start difference. First operand 294 states and 388 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:37:58,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:58,659 INFO L93 Difference]: Finished difference Result 445 states and 588 transitions. [2021-10-28 08:37:58,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:37:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2021-10-28 08:37:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:58,666 INFO L225 Difference]: With dead ends: 445 [2021-10-28 08:37:58,666 INFO L226 Difference]: Without dead ends: 444 [2021-10-28 08:37:58,667 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 08:37:58,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-10-28 08:37:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 425. [2021-10-28 08:37:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 324 states have (on average 1.3179012345679013) internal successors, (427), 330 states have internal predecessors, (427), 66 states have call successors, (66), 37 states have call predecessors, (66), 34 states have return successors, (70), 59 states have call predecessors, (70), 54 states have call successors, (70) [2021-10-28 08:37:58,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 563 transitions. [2021-10-28 08:37:58,735 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 563 transitions. Word has length 28 [2021-10-28 08:37:58,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:58,735 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 563 transitions. [2021-10-28 08:37:58,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:37:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 563 transitions. [2021-10-28 08:37:58,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 08:37:58,745 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:58,746 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 08:37:58,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:37:58,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:37:58,970 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash 880923331, now seen corresponding path program 1 times [2021-10-28 08:37:58,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:37:58,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307633002] [2021-10-28 08:37:58,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:58,973 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:37:58,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:37:58,974 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:37:58,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 08:37:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:37:59,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:37:59,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:37:59,437 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 08:37:59,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:37:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:37:59,550 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:37:59,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307633002] [2021-10-28 08:37:59,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307633002] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:37:59,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:37:59,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:37:59,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322100614] [2021-10-28 08:37:59,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:37:59,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:37:59,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:37:59,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:37:59,578 INFO L87 Difference]: Start difference. First operand 425 states and 563 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:37:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:37:59,638 INFO L93 Difference]: Finished difference Result 655 states and 871 transitions. [2021-10-28 08:37:59,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:37:59,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 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 08:37:59,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:37:59,648 INFO L225 Difference]: With dead ends: 655 [2021-10-28 08:37:59,648 INFO L226 Difference]: Without dead ends: 655 [2021-10-28 08:37:59,649 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 08:37:59,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2021-10-28 08:37:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 622. [2021-10-28 08:37:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 484 states have (on average 1.3181818181818181) internal successors, (638), 487 states have internal predecessors, (638), 86 states have call successors, (86), 55 states have call predecessors, (86), 51 states have return successors, (107), 81 states have call predecessors, (107), 76 states have call successors, (107) [2021-10-28 08:37:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 831 transitions. [2021-10-28 08:37:59,709 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 831 transitions. Word has length 30 [2021-10-28 08:37:59,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:37:59,710 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 831 transitions. [2021-10-28 08:37:59,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:37:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 831 transitions. [2021-10-28 08:37:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:37:59,717 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:37:59,718 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] [2021-10-28 08:37:59,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:37:59,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:37:59,936 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:37:59,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:37:59,937 INFO L85 PathProgramCache]: Analyzing trace with hash 997790288, now seen corresponding path program 1 times [2021-10-28 08:37:59,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:37:59,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858263071] [2021-10-28 08:37:59,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:37:59,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:37:59,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:37:59,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:37:59,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 08:38:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:00,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:38:00,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:00,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:00,565 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 08:38:00,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:00,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858263071] [2021-10-28 08:38:00,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858263071] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:00,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:00,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:38:00,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418668048] [2021-10-28 08:38:00,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:38:00,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:38:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:00,569 INFO L87 Difference]: Start difference. First operand 622 states and 831 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:38:00,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:00,621 INFO L93 Difference]: Finished difference Result 699 states and 925 transitions. [2021-10-28 08:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:38:00,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2021-10-28 08:38:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:00,628 INFO L225 Difference]: With dead ends: 699 [2021-10-28 08:38:00,628 INFO L226 Difference]: Without dead ends: 699 [2021-10-28 08:38:00,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 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 08:38:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-10-28 08:38:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 666. [2021-10-28 08:38:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 522 states have (on average 1.3218390804597702) internal successors, (690), 531 states have internal predecessors, (690), 87 states have call successors, (87), 57 states have call predecessors, (87), 56 states have return successors, (112), 80 states have call predecessors, (112), 78 states have call successors, (112) [2021-10-28 08:38:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 889 transitions. [2021-10-28 08:38:00,660 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 889 transitions. Word has length 34 [2021-10-28 08:38:00,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:00,661 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 889 transitions. [2021-10-28 08:38:00,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:38:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 889 transitions. [2021-10-28 08:38:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 08:38:00,665 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:00,665 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] [2021-10-28 08:38:00,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:00,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:00,887 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash 745640695, now seen corresponding path program 1 times [2021-10-28 08:38:00,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:00,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496903533] [2021-10-28 08:38:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:00,888 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:00,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:00,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:00,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 08:38:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:01,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:38:01,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:01,453 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 08:38:01,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:01,641 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 08:38:01,641 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:01,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496903533] [2021-10-28 08:38:01,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496903533] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:01,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:01,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 08:38:01,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427916929] [2021-10-28 08:38:01,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:38:01,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:38:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:01,644 INFO L87 Difference]: Start difference. First operand 666 states and 889 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 08:38:01,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:01,717 INFO L93 Difference]: Finished difference Result 690 states and 917 transitions. [2021-10-28 08:38:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:38:01,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2021-10-28 08:38:01,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:01,724 INFO L225 Difference]: With dead ends: 690 [2021-10-28 08:38:01,725 INFO L226 Difference]: Without dead ends: 690 [2021-10-28 08:38:01,725 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:01,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-28 08:38:01,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 670. [2021-10-28 08:38:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 525 states have (on average 1.32) internal successors, (693), 534 states have internal predecessors, (693), 87 states have call successors, (87), 57 states have call predecessors, (87), 57 states have return successors, (113), 81 states have call predecessors, (113), 78 states have call successors, (113) [2021-10-28 08:38:01,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 893 transitions. [2021-10-28 08:38:01,756 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 893 transitions. Word has length 41 [2021-10-28 08:38:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:01,757 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 893 transitions. [2021-10-28 08:38:01,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-10-28 08:38:01,757 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 893 transitions. [2021-10-28 08:38:01,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 08:38:01,759 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:01,760 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 08:38:01,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:01,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:01,985 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:01,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash 238427558, now seen corresponding path program 1 times [2021-10-28 08:38:01,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:01,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176355458] [2021-10-28 08:38:01,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:01,986 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:01,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:01,987 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:01,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 08:38:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:02,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:38:02,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:02,611 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 08:38:02,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:02,771 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 08:38:02,771 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:02,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176355458] [2021-10-28 08:38:02,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176355458] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:02,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:02,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-10-28 08:38:02,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531640656] [2021-10-28 08:38:02,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:02,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:02,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:02,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:02,774 INFO L87 Difference]: Start difference. First operand 670 states and 893 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:38:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:03,230 INFO L93 Difference]: Finished difference Result 682 states and 909 transitions. [2021-10-28 08:38:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:03,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 5 states have call successors, (10), 5 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 40 [2021-10-28 08:38:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:03,237 INFO L225 Difference]: With dead ends: 682 [2021-10-28 08:38:03,237 INFO L226 Difference]: Without dead ends: 682 [2021-10-28 08:38:03,238 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 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 08:38:03,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-10-28 08:38:03,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 681. [2021-10-28 08:38:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 536 states have (on average 1.3190298507462686) internal successors, (707), 544 states have internal predecessors, (707), 87 states have call successors, (87), 58 states have call predecessors, (87), 57 states have return successors, (113), 81 states have call predecessors, (113), 78 states have call successors, (113) [2021-10-28 08:38:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 907 transitions. [2021-10-28 08:38:03,277 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 907 transitions. Word has length 40 [2021-10-28 08:38:03,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:03,278 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 907 transitions. [2021-10-28 08:38:03,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 08:38:03,278 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 907 transitions. [2021-10-28 08:38:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 08:38:03,280 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:03,280 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] [2021-10-28 08:38:03,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:03,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:03,485 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:03,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:03,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1155197731, now seen corresponding path program 1 times [2021-10-28 08:38:03,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:03,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932793920] [2021-10-28 08:38:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:03,489 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:03,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:03,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:03,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 08:38:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:03,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:03,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:03,974 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 08:38:03,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:04,138 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 08:38:04,139 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:04,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932793920] [2021-10-28 08:38:04,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932793920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:04,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:04,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:38:04,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446085841] [2021-10-28 08:38:04,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:38:04,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:04,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:38:04,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:04,141 INFO L87 Difference]: Start difference. First operand 681 states and 907 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-28 08:38:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:04,246 INFO L93 Difference]: Finished difference Result 716 states and 950 transitions. [2021-10-28 08:38:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:38:04,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 41 [2021-10-28 08:38:04,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:04,252 INFO L225 Difference]: With dead ends: 716 [2021-10-28 08:38:04,252 INFO L226 Difference]: Without dead ends: 716 [2021-10-28 08:38:04,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 08:38:04,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-28 08:38:04,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 712. [2021-10-28 08:38:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 565 states have (on average 1.3185840707964602) internal successors, (745), 572 states have internal predecessors, (745), 87 states have call successors, (87), 58 states have call predecessors, (87), 59 states have return successors, (115), 83 states have call predecessors, (115), 78 states have call successors, (115) [2021-10-28 08:38:04,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 947 transitions. [2021-10-28 08:38:04,285 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 947 transitions. Word has length 41 [2021-10-28 08:38:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:04,285 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 947 transitions. [2021-10-28 08:38:04,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-28 08:38:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 947 transitions. [2021-10-28 08:38:04,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 08:38:04,287 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:04,288 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] [2021-10-28 08:38:04,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:04,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:04,506 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:04,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:04,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1904225145, now seen corresponding path program 1 times [2021-10-28 08:38:04,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:04,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011690271] [2021-10-28 08:38:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:04,507 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:04,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:04,508 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:04,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 08:38:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:04,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:04,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:05,376 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 08:38:05,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:05,632 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 08:38:05,632 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:05,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011690271] [2021-10-28 08:38:05,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011690271] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:05,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:05,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 08:38:05,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127275073] [2021-10-28 08:38:05,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:38:05,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:05,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:38:05,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:05,635 INFO L87 Difference]: Start difference. First operand 712 states and 947 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 08:38:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:06,209 INFO L93 Difference]: Finished difference Result 725 states and 958 transitions. [2021-10-28 08:38:06,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:06,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 42 [2021-10-28 08:38:06,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:06,215 INFO L225 Difference]: With dead ends: 725 [2021-10-28 08:38:06,216 INFO L226 Difference]: Without dead ends: 725 [2021-10-28 08:38:06,216 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:38:06,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2021-10-28 08:38:06,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 712. [2021-10-28 08:38:06,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 565 states have (on average 1.3150442477876105) internal successors, (743), 572 states have internal predecessors, (743), 87 states have call successors, (87), 58 states have call predecessors, (87), 59 states have return successors, (115), 83 states have call predecessors, (115), 78 states have call successors, (115) [2021-10-28 08:38:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 945 transitions. [2021-10-28 08:38:06,250 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 945 transitions. Word has length 42 [2021-10-28 08:38:06,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:06,251 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 945 transitions. [2021-10-28 08:38:06,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 08:38:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 945 transitions. [2021-10-28 08:38:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-28 08:38:06,253 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:06,253 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] [2021-10-28 08:38:06,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:06,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:06,471 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:06,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1987582385, now seen corresponding path program 1 times [2021-10-28 08:38:06,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:06,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119991093] [2021-10-28 08:38:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:06,473 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:06,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:06,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:06,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 08:38:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:07,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:07,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:07,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:07,588 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 08:38:07,588 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:07,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119991093] [2021-10-28 08:38:07,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119991093] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:07,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:07,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 08:38:07,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871866879] [2021-10-28 08:38:07,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:38:07,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:38:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:07,592 INFO L87 Difference]: Start difference. First operand 712 states and 945 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 08:38:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:08,117 INFO L93 Difference]: Finished difference Result 718 states and 947 transitions. [2021-10-28 08:38:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:08,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 43 [2021-10-28 08:38:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:08,125 INFO L225 Difference]: With dead ends: 718 [2021-10-28 08:38:08,125 INFO L226 Difference]: Without dead ends: 718 [2021-10-28 08:38:08,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:38:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-10-28 08:38:08,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 712. [2021-10-28 08:38:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 565 states have (on average 1.311504424778761) internal successors, (741), 572 states have internal predecessors, (741), 87 states have call successors, (87), 58 states have call predecessors, (87), 59 states have return successors, (115), 83 states have call predecessors, (115), 78 states have call successors, (115) [2021-10-28 08:38:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 943 transitions. [2021-10-28 08:38:08,158 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 943 transitions. Word has length 43 [2021-10-28 08:38:08,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:08,159 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 943 transitions. [2021-10-28 08:38:08,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 08:38:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 943 transitions. [2021-10-28 08:38:08,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 08:38:08,161 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:08,161 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] [2021-10-28 08:38:08,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:08,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:08,382 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:08,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:08,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1134491961, now seen corresponding path program 1 times [2021-10-28 08:38:08,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:08,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691342717] [2021-10-28 08:38:08,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:08,384 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:08,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:08,385 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:08,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 08:38:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:08,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:38:08,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:09,351 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 08:38:09,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:09,587 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 08:38:09,587 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:09,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691342717] [2021-10-28 08:38:09,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691342717] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:09,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:09,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 08:38:09,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750700998] [2021-10-28 08:38:09,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:38:09,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:38:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:09,590 INFO L87 Difference]: Start difference. First operand 712 states and 943 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 6 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 08:38:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:10,478 INFO L93 Difference]: Finished difference Result 957 states and 1269 transitions. [2021-10-28 08:38:10,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:10,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 6 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 44 [2021-10-28 08:38:10,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:10,487 INFO L225 Difference]: With dead ends: 957 [2021-10-28 08:38:10,487 INFO L226 Difference]: Without dead ends: 957 [2021-10-28 08:38:10,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:38:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2021-10-28 08:38:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 769. [2021-10-28 08:38:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 610 states have (on average 1.301639344262295) internal successors, (794), 618 states have internal predecessors, (794), 93 states have call successors, (93), 64 states have call predecessors, (93), 65 states have return successors, (127), 88 states have call predecessors, (127), 84 states have call successors, (127) [2021-10-28 08:38:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1014 transitions. [2021-10-28 08:38:10,527 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1014 transitions. Word has length 44 [2021-10-28 08:38:10,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:10,527 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1014 transitions. [2021-10-28 08:38:10,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 6 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 08:38:10,528 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1014 transitions. [2021-10-28 08:38:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 08:38:10,529 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:10,530 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] [2021-10-28 08:38:10,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:10,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:10,745 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:10,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1430364190, now seen corresponding path program 1 times [2021-10-28 08:38:10,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:10,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122971265] [2021-10-28 08:38:10,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:10,746 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:10,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:10,747 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:10,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 08:38:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:11,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:11,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:11,351 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 08:38:11,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:11,538 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 08:38:11,539 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:11,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122971265] [2021-10-28 08:38:11,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122971265] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:11,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:11,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 08:38:11,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512387325] [2021-10-28 08:38:11,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:38:11,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:11,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:38:11,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:11,542 INFO L87 Difference]: Start difference. First operand 769 states and 1014 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:38:11,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:11,636 INFO L93 Difference]: Finished difference Result 782 states and 1026 transitions. [2021-10-28 08:38:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:11,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2021-10-28 08:38:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:11,643 INFO L225 Difference]: With dead ends: 782 [2021-10-28 08:38:11,643 INFO L226 Difference]: Without dead ends: 767 [2021-10-28 08:38:11,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:38:11,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-10-28 08:38:11,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2021-10-28 08:38:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 609 states have (on average 1.3004926108374384) internal successors, (792), 617 states have internal predecessors, (792), 92 states have call successors, (92), 64 states have call predecessors, (92), 65 states have return successors, (126), 87 states have call predecessors, (126), 83 states have call successors, (126) [2021-10-28 08:38:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1010 transitions. [2021-10-28 08:38:11,680 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1010 transitions. Word has length 44 [2021-10-28 08:38:11,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:11,680 INFO L470 AbstractCegarLoop]: Abstraction has 767 states and 1010 transitions. [2021-10-28 08:38:11,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:38:11,681 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1010 transitions. [2021-10-28 08:38:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 08:38:11,683 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:11,683 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] [2021-10-28 08:38:11,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:11,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:11,897 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:11,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:11,897 INFO L85 PathProgramCache]: Analyzing trace with hash 200933273, now seen corresponding path program 1 times [2021-10-28 08:38:11,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:11,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150842766] [2021-10-28 08:38:11,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:11,898 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:11,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:11,900 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:11,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 08:38:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:12,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:12,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:12,622 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 08:38:12,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:12,797 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 08:38:12,797 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:12,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150842766] [2021-10-28 08:38:12,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150842766] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:12,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:12,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-10-28 08:38:12,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518635447] [2021-10-28 08:38:12,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:12,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:12,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:12,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:12,801 INFO L87 Difference]: Start difference. First operand 767 states and 1010 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 08:38:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:13,069 INFO L93 Difference]: Finished difference Result 563 states and 711 transitions. [2021-10-28 08:38:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:38:13,070 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), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2021-10-28 08:38:13,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:13,074 INFO L225 Difference]: With dead ends: 563 [2021-10-28 08:38:13,074 INFO L226 Difference]: Without dead ends: 563 [2021-10-28 08:38:13,075 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2021-10-28 08:38:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 532. [2021-10-28 08:38:13,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 422 states have (on average 1.2796208530805686) internal successors, (540), 431 states have internal predecessors, (540), 63 states have call successors, (63), 43 states have call predecessors, (63), 46 states have return successors, (70), 59 states have call predecessors, (70), 54 states have call successors, (70) [2021-10-28 08:38:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 673 transitions. [2021-10-28 08:38:13,097 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 673 transitions. Word has length 49 [2021-10-28 08:38:13,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:13,099 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 673 transitions. [2021-10-28 08:38:13,099 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), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 08:38:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 673 transitions. [2021-10-28 08:38:13,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 08:38:13,101 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:13,101 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] [2021-10-28 08:38:13,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:13,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:13,320 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash 990627785, now seen corresponding path program 1 times [2021-10-28 08:38:13,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:13,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347327250] [2021-10-28 08:38:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:13,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:13,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:13,323 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:13,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 08:38:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:13,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:13,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:14,035 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 08:38:14,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:14,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:14,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347327250] [2021-10-28 08:38:14,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347327250] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:14,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:14,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:38:14,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243785972] [2021-10-28 08:38:14,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:38:14,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:14,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:38:14,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:14,213 INFO L87 Difference]: Start difference. First operand 532 states and 673 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:38:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:14,296 INFO L93 Difference]: Finished difference Result 540 states and 684 transitions. [2021-10-28 08:38:14,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:38:14,301 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2021-10-28 08:38:14,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:14,305 INFO L225 Difference]: With dead ends: 540 [2021-10-28 08:38:14,319 INFO L226 Difference]: Without dead ends: 540 [2021-10-28 08:38:14,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 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 08:38:14,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-10-28 08:38:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2021-10-28 08:38:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 430 states have (on average 1.2813953488372094) internal successors, (551), 438 states have internal predecessors, (551), 63 states have call successors, (63), 43 states have call predecessors, (63), 46 states have return successors, (70), 59 states have call predecessors, (70), 54 states have call successors, (70) [2021-10-28 08:38:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 684 transitions. [2021-10-28 08:38:14,346 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 684 transitions. Word has length 55 [2021-10-28 08:38:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:14,346 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 684 transitions. [2021-10-28 08:38:14,346 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:38:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 684 transitions. [2021-10-28 08:38:14,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 08:38:14,349 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:14,351 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 08:38:14,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:14,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:14,564 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:14,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1272827596, now seen corresponding path program 1 times [2021-10-28 08:38:14,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:14,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644810071] [2021-10-28 08:38:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:14,565 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:14,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:14,567 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:14,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 08:38:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:15,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:38:15,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:15,653 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 08:38:15,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:16,061 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 08:38:16,061 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:16,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644810071] [2021-10-28 08:38:16,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644810071] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:16,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:16,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-10-28 08:38:16,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339464948] [2021-10-28 08:38:16,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:38:16,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:38:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:38:16,066 INFO L87 Difference]: Start difference. First operand 540 states and 684 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2021-10-28 08:38:17,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:17,762 INFO L93 Difference]: Finished difference Result 740 states and 934 transitions. [2021-10-28 08:38:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 08:38:17,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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 52 [2021-10-28 08:38:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:17,768 INFO L225 Difference]: With dead ends: 740 [2021-10-28 08:38:17,768 INFO L226 Difference]: Without dead ends: 740 [2021-10-28 08:38:17,769 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:38:17,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-10-28 08:38:17,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 592. [2021-10-28 08:38:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 470 states have (on average 1.2702127659574467) internal successors, (597), 481 states have internal predecessors, (597), 67 states have call successors, (67), 46 states have call predecessors, (67), 54 states have return successors, (82), 65 states have call predecessors, (82), 58 states have call successors, (82) [2021-10-28 08:38:17,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 746 transitions. [2021-10-28 08:38:17,794 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 746 transitions. Word has length 52 [2021-10-28 08:38:17,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:17,795 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 746 transitions. [2021-10-28 08:38:17,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2021-10-28 08:38:17,795 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 746 transitions. [2021-10-28 08:38:17,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 08:38:17,797 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:17,797 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 08:38:17,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:18,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:18,013 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:18,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:18,013 INFO L85 PathProgramCache]: Analyzing trace with hash -539078543, now seen corresponding path program 1 times [2021-10-28 08:38:18,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:18,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330973970] [2021-10-28 08:38:18,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:18,014 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:18,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:18,016 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:18,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-28 08:38:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:18,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:18,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:18,830 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 08:38:18,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:19,011 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:19,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330973970] [2021-10-28 08:38:19,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330973970] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:19,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:19,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:38:19,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256625150] [2021-10-28 08:38:19,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:38:19,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:19,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:38:19,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:19,014 INFO L87 Difference]: Start difference. First operand 592 states and 746 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-10-28 08:38:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:19,153 INFO L93 Difference]: Finished difference Result 731 states and 922 transitions. [2021-10-28 08:38:19,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:38:19,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 54 [2021-10-28 08:38:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:19,161 INFO L225 Difference]: With dead ends: 731 [2021-10-28 08:38:19,161 INFO L226 Difference]: Without dead ends: 731 [2021-10-28 08:38:19,161 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 08:38:19,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-10-28 08:38:19,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 667. [2021-10-28 08:38:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 534 states have (on average 1.2659176029962547) internal successors, (676), 541 states have internal predecessors, (676), 70 states have call successors, (70), 49 states have call predecessors, (70), 62 states have return successors, (96), 77 states have call predecessors, (96), 61 states have call successors, (96) [2021-10-28 08:38:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 842 transitions. [2021-10-28 08:38:19,192 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 842 transitions. Word has length 54 [2021-10-28 08:38:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:19,193 INFO L470 AbstractCegarLoop]: Abstraction has 667 states and 842 transitions. [2021-10-28 08:38:19,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-10-28 08:38:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 842 transitions. [2021-10-28 08:38:19,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 08:38:19,197 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:19,197 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 08:38:19,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:19,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:19,411 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:19,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:19,411 INFO L85 PathProgramCache]: Analyzing trace with hash 905990001, now seen corresponding path program 1 times [2021-10-28 08:38:19,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:19,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213316800] [2021-10-28 08:38:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:19,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:19,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:19,414 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:19,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-28 08:38:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:20,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:38:20,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:20,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:20,938 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 08:38:20,939 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:20,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213316800] [2021-10-28 08:38:20,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213316800] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:20,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:20,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-10-28 08:38:20,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044985147] [2021-10-28 08:38:20,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:38:20,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:20,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:38:20,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:38:20,942 INFO L87 Difference]: Start difference. First operand 667 states and 842 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 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) [2021-10-28 08:38:21,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:21,883 INFO L93 Difference]: Finished difference Result 633 states and 790 transitions. [2021-10-28 08:38:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:38:21,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 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 54 [2021-10-28 08:38:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:21,888 INFO L225 Difference]: With dead ends: 633 [2021-10-28 08:38:21,888 INFO L226 Difference]: Without dead ends: 633 [2021-10-28 08:38:21,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:38:21,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2021-10-28 08:38:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 580. [2021-10-28 08:38:21,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 461 states have (on average 1.262472885032538) internal successors, (582), 473 states have internal predecessors, (582), 65 states have call successors, (65), 45 states have call predecessors, (65), 53 states have return successors, (80), 62 states have call predecessors, (80), 57 states have call successors, (80) [2021-10-28 08:38:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 727 transitions. [2021-10-28 08:38:21,912 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 727 transitions. Word has length 54 [2021-10-28 08:38:21,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:21,912 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 727 transitions. [2021-10-28 08:38:21,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 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) [2021-10-28 08:38:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 727 transitions. [2021-10-28 08:38:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:38:21,914 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:21,915 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 08:38:21,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:22,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:22,129 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:22,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:22,129 INFO L85 PathProgramCache]: Analyzing trace with hash -210511565, now seen corresponding path program 1 times [2021-10-28 08:38:22,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:22,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346194035] [2021-10-28 08:38:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:22,130 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:22,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:22,131 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:22,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-28 08:38:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:22,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:38:22,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:22,937 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 08:38:22,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:23,155 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:23,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346194035] [2021-10-28 08:38:23,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346194035] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:23,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:23,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:38:23,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583020525] [2021-10-28 08:38:23,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:23,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:23,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:23,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:23,157 INFO L87 Difference]: Start difference. First operand 580 states and 727 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:38:23,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:23,174 INFO L93 Difference]: Finished difference Result 515 states and 637 transitions. [2021-10-28 08:38:23,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:23,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2021-10-28 08:38:23,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:23,179 INFO L225 Difference]: With dead ends: 515 [2021-10-28 08:38:23,180 INFO L226 Difference]: Without dead ends: 515 [2021-10-28 08:38:23,180 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-10-28 08:38:23,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2021-10-28 08:38:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 406 states have (on average 1.2463054187192117) internal successors, (506), 415 states have internal predecessors, (506), 61 states have call successors, (61), 43 states have call predecessors, (61), 47 states have return successors, (70), 57 states have call predecessors, (70), 54 states have call successors, (70) [2021-10-28 08:38:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 637 transitions. [2021-10-28 08:38:23,199 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 637 transitions. Word has length 61 [2021-10-28 08:38:23,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:23,200 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 637 transitions. [2021-10-28 08:38:23,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:38:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 637 transitions. [2021-10-28 08:38:23,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 08:38:23,202 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:23,202 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 08:38:23,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:23,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:23,417 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:23,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:23,417 INFO L85 PathProgramCache]: Analyzing trace with hash 921268203, now seen corresponding path program 1 times [2021-10-28 08:38:23,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:23,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088465051] [2021-10-28 08:38:23,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:23,418 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:23,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:23,419 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:23,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-28 08:38:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:24,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:24,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:24,623 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 08:38:24,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:24,857 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 08:38:24,857 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:24,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088465051] [2021-10-28 08:38:24,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088465051] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:24,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:24,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 08:38:24,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628774716] [2021-10-28 08:38:24,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:38:24,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:24,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:38:24,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:38:24,860 INFO L87 Difference]: Start difference. First operand 515 states and 637 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 08:38:25,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:25,173 INFO L93 Difference]: Finished difference Result 519 states and 639 transitions. [2021-10-28 08:38:25,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:25,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 55 [2021-10-28 08:38:25,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:25,177 INFO L225 Difference]: With dead ends: 519 [2021-10-28 08:38:25,177 INFO L226 Difference]: Without dead ends: 519 [2021-10-28 08:38:25,178 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:38:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-10-28 08:38:25,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 515. [2021-10-28 08:38:25,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 406 states have (on average 1.2438423645320198) internal successors, (505), 415 states have internal predecessors, (505), 61 states have call successors, (61), 43 states have call predecessors, (61), 47 states have return successors, (70), 57 states have call predecessors, (70), 54 states have call successors, (70) [2021-10-28 08:38:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 636 transitions. [2021-10-28 08:38:25,220 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 636 transitions. Word has length 55 [2021-10-28 08:38:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:25,221 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 636 transitions. [2021-10-28 08:38:25,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-10-28 08:38:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 636 transitions. [2021-10-28 08:38:25,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 08:38:25,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:25,223 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] [2021-10-28 08:38:25,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:25,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:25,437 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:25,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:25,437 INFO L85 PathProgramCache]: Analyzing trace with hash 921545033, now seen corresponding path program 1 times [2021-10-28 08:38:25,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:25,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486755511] [2021-10-28 08:38:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:25,438 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:25,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:25,439 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:25,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-28 08:38:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:26,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:38:26,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:26,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:26,772 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 08:38:26,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:26,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486755511] [2021-10-28 08:38:26,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486755511] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:26,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:26,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-10-28 08:38:26,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151443543] [2021-10-28 08:38:26,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 08:38:26,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:26,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 08:38:26,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:38:26,776 INFO L87 Difference]: Start difference. First operand 515 states and 636 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 11 states have internal predecessors, (60), 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) [2021-10-28 08:38:27,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:27,132 INFO L93 Difference]: Finished difference Result 559 states and 690 transitions. [2021-10-28 08:38:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:38:27,140 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 11 states have internal predecessors, (60), 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 55 [2021-10-28 08:38:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:27,144 INFO L225 Difference]: With dead ends: 559 [2021-10-28 08:38:27,144 INFO L226 Difference]: Without dead ends: 532 [2021-10-28 08:38:27,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:38:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-10-28 08:38:27,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 514. [2021-10-28 08:38:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 406 states have (on average 1.2438423645320198) internal successors, (505), 415 states have internal predecessors, (505), 60 states have call successors, (60), 43 states have call predecessors, (60), 47 states have return successors, (69), 56 states have call predecessors, (69), 53 states have call successors, (69) [2021-10-28 08:38:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 634 transitions. [2021-10-28 08:38:27,164 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 634 transitions. Word has length 55 [2021-10-28 08:38:27,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:27,165 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 634 transitions. [2021-10-28 08:38:27,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 11 states have internal predecessors, (60), 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) [2021-10-28 08:38:27,165 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 634 transitions. [2021-10-28 08:38:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 08:38:27,167 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:27,167 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] [2021-10-28 08:38:27,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:27,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:27,385 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:27,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1859523861, now seen corresponding path program 1 times [2021-10-28 08:38:27,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:27,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097313064] [2021-10-28 08:38:27,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:27,387 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:27,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:27,388 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:27,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-28 08:38:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:28,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:38:28,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:28,421 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 08:38:28,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:28,845 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 08:38:28,846 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:28,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097313064] [2021-10-28 08:38:28,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097313064] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:28,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:28,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 10 [2021-10-28 08:38:28,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935232116] [2021-10-28 08:38:28,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:38:28,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:28,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:38:28,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:38:28,848 INFO L87 Difference]: Start difference. First operand 514 states and 634 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 08:38:30,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:30,836 INFO L93 Difference]: Finished difference Result 795 states and 985 transitions. [2021-10-28 08:38:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:38:30,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 57 [2021-10-28 08:38:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:30,841 INFO L225 Difference]: With dead ends: 795 [2021-10-28 08:38:30,842 INFO L226 Difference]: Without dead ends: 621 [2021-10-28 08:38:30,842 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:38:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2021-10-28 08:38:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 563. [2021-10-28 08:38:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 444 states have (on average 1.231981981981982) internal successors, (547), 455 states have internal predecessors, (547), 69 states have call successors, (69), 43 states have call predecessors, (69), 49 states have return successors, (78), 65 states have call predecessors, (78), 60 states have call successors, (78) [2021-10-28 08:38:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 694 transitions. [2021-10-28 08:38:30,876 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 694 transitions. Word has length 57 [2021-10-28 08:38:30,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:30,877 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 694 transitions. [2021-10-28 08:38:30,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 08:38:30,878 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 694 transitions. [2021-10-28 08:38:30,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 08:38:30,881 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:30,881 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] [2021-10-28 08:38:30,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:31,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:31,095 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:31,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:31,095 INFO L85 PathProgramCache]: Analyzing trace with hash -847095533, now seen corresponding path program 1 times [2021-10-28 08:38:31,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:31,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682242431] [2021-10-28 08:38:31,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:31,096 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:31,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:31,098 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:31,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-28 08:38:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:32,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:38:32,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:32,181 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 08:38:32,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:32,407 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 08:38:32,408 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:32,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682242431] [2021-10-28 08:38:32,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682242431] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:32,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:32,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 08:38:32,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812712443] [2021-10-28 08:38:32,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:38:32,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:32,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:38:32,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:38:32,410 INFO L87 Difference]: Start difference. First operand 563 states and 694 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 08:38:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:32,554 INFO L93 Difference]: Finished difference Result 581 states and 711 transitions. [2021-10-28 08:38:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:38:32,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2021-10-28 08:38:32,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:32,564 INFO L225 Difference]: With dead ends: 581 [2021-10-28 08:38:32,565 INFO L226 Difference]: Without dead ends: 549 [2021-10-28 08:38:32,565 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:38:32,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-10-28 08:38:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 547. [2021-10-28 08:38:32,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 433 states have (on average 1.2263279445727482) internal successors, (531), 443 states have internal predecessors, (531), 67 states have call successors, (67), 42 states have call predecessors, (67), 46 states have return successors, (74), 62 states have call predecessors, (74), 58 states have call successors, (74) [2021-10-28 08:38:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 672 transitions. [2021-10-28 08:38:32,585 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 672 transitions. Word has length 57 [2021-10-28 08:38:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:32,586 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 672 transitions. [2021-10-28 08:38:32,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 08:38:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 672 transitions. [2021-10-28 08:38:32,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 08:38:32,588 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:32,589 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 08:38:32,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:32,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:32,807 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1089805532, now seen corresponding path program 1 times [2021-10-28 08:38:32,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:32,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237869050] [2021-10-28 08:38:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:32,809 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:32,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:32,810 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:32,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-28 08:38:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:33,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:38:33,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:33,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:33,999 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:33,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237869050] [2021-10-28 08:38:34,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237869050] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:34,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:34,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 08:38:34,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321667575] [2021-10-28 08:38:34,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:38:34,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:34,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:38:34,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:34,002 INFO L87 Difference]: Start difference. First operand 547 states and 672 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 08:38:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:34,252 INFO L93 Difference]: Finished difference Result 613 states and 735 transitions. [2021-10-28 08:38:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:38:34,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 65 [2021-10-28 08:38:34,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:34,256 INFO L225 Difference]: With dead ends: 613 [2021-10-28 08:38:34,256 INFO L226 Difference]: Without dead ends: 603 [2021-10-28 08:38:34,257 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-10-28 08:38:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 566. [2021-10-28 08:38:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 453 states have (on average 1.216335540838852) internal successors, (551), 461 states have internal predecessors, (551), 62 states have call successors, (62), 46 states have call predecessors, (62), 50 states have return successors, (71), 59 states have call predecessors, (71), 55 states have call successors, (71) [2021-10-28 08:38:34,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 684 transitions. [2021-10-28 08:38:34,275 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 684 transitions. Word has length 65 [2021-10-28 08:38:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:34,276 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 684 transitions. [2021-10-28 08:38:34,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 08:38:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 684 transitions. [2021-10-28 08:38:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 08:38:34,278 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:34,278 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 08:38:34,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:34,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:34,493 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:34,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:34,494 INFO L85 PathProgramCache]: Analyzing trace with hash 196319194, now seen corresponding path program 1 times [2021-10-28 08:38:34,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:34,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371121300] [2021-10-28 08:38:34,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:34,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:34,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:34,496 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:34,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-28 08:38:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:35,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:35,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:35,909 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 08:38:35,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:36,225 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 08:38:36,225 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:36,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371121300] [2021-10-28 08:38:36,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371121300] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:36,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:36,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-10-28 08:38:36,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819328704] [2021-10-28 08:38:36,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:38:36,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:36,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:38:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:38:36,227 INFO L87 Difference]: Start difference. First operand 566 states and 684 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 08:38:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:36,621 INFO L93 Difference]: Finished difference Result 587 states and 705 transitions. [2021-10-28 08:38:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:36,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 65 [2021-10-28 08:38:36,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:36,626 INFO L225 Difference]: With dead ends: 587 [2021-10-28 08:38:36,626 INFO L226 Difference]: Without dead ends: 587 [2021-10-28 08:38:36,627 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 [2021-10-28 08:38:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-10-28 08:38:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 566. [2021-10-28 08:38:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 453 states have (on average 1.2119205298013245) internal successors, (549), 461 states have internal predecessors, (549), 62 states have call successors, (62), 46 states have call predecessors, (62), 50 states have return successors, (71), 59 states have call predecessors, (71), 55 states have call successors, (71) [2021-10-28 08:38:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 682 transitions. [2021-10-28 08:38:36,646 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 682 transitions. Word has length 65 [2021-10-28 08:38:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:36,646 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 682 transitions. [2021-10-28 08:38:36,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 08:38:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 682 transitions. [2021-10-28 08:38:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 08:38:36,648 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:36,649 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 08:38:36,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:36,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:36,868 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:36,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:36,869 INFO L85 PathProgramCache]: Analyzing trace with hash 192909972, now seen corresponding path program 1 times [2021-10-28 08:38:36,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:36,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905318619] [2021-10-28 08:38:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:36,870 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:36,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:36,871 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:36,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-28 08:38:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:37,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:38:37,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:38,067 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 08:38:38,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:38,269 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 08:38:38,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:38,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905318619] [2021-10-28 08:38:38,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905318619] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:38,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:38,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:38:38,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109475382] [2021-10-28 08:38:38,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:38,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:38,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:38,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:38,271 INFO L87 Difference]: Start difference. First operand 566 states and 682 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 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 08:38:38,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:38,289 INFO L93 Difference]: Finished difference Result 543 states and 654 transitions. [2021-10-28 08:38:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:38,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 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 59 [2021-10-28 08:38:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:38,294 INFO L225 Difference]: With dead ends: 543 [2021-10-28 08:38:38,294 INFO L226 Difference]: Without dead ends: 543 [2021-10-28 08:38:38,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:38,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-10-28 08:38:38,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 538. [2021-10-28 08:38:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 430 states have (on average 1.2116279069767442) internal successors, (521), 438 states have internal predecessors, (521), 60 states have call successors, (60), 44 states have call predecessors, (60), 47 states have return successors, (68), 56 states have call predecessors, (68), 53 states have call successors, (68) [2021-10-28 08:38:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 649 transitions. [2021-10-28 08:38:38,312 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 649 transitions. Word has length 59 [2021-10-28 08:38:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:38,313 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 649 transitions. [2021-10-28 08:38:38,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 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 08:38:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 649 transitions. [2021-10-28 08:38:38,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 08:38:38,315 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:38,315 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 08:38:38,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:38,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:38,535 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:38,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:38,535 INFO L85 PathProgramCache]: Analyzing trace with hash -495774537, now seen corresponding path program 1 times [2021-10-28 08:38:38,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:38,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489995226] [2021-10-28 08:38:38,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:38,536 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:38,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:38,537 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:38,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-28 08:38:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:39,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:38:39,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:39,806 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 08:38:39,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:40,140 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 08:38:40,140 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:40,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489995226] [2021-10-28 08:38:40,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489995226] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:40,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:40,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-10-28 08:38:40,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923581374] [2021-10-28 08:38:40,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:38:40,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:40,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:38:40,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:38:40,144 INFO L87 Difference]: Start difference. First operand 538 states and 649 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 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) [2021-10-28 08:38:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:40,544 INFO L93 Difference]: Finished difference Result 594 states and 709 transitions. [2021-10-28 08:38:40,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 08:38:40,545 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 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 60 [2021-10-28 08:38:40,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:40,548 INFO L225 Difference]: With dead ends: 594 [2021-10-28 08:38:40,548 INFO L226 Difference]: Without dead ends: 561 [2021-10-28 08:38:40,549 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:38:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-10-28 08:38:40,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 534. [2021-10-28 08:38:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 427 states have (on average 1.2107728337236534) internal successors, (517), 435 states have internal predecessors, (517), 59 states have call successors, (59), 44 states have call predecessors, (59), 47 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2021-10-28 08:38:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 643 transitions. [2021-10-28 08:38:40,568 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 643 transitions. Word has length 60 [2021-10-28 08:38:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:40,568 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 643 transitions. [2021-10-28 08:38:40,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 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) [2021-10-28 08:38:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 643 transitions. [2021-10-28 08:38:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 08:38:40,570 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:40,571 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 08:38:40,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:40,790 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:40,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:40,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1781976354, now seen corresponding path program 1 times [2021-10-28 08:38:40,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:40,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147615552] [2021-10-28 08:38:40,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:40,791 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:40,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:40,792 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-28 08:38:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:41,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:41,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:41,926 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 08:38:41,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:42,087 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 08:38:42,088 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:42,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147615552] [2021-10-28 08:38:42,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147615552] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:42,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:42,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 08:38:42,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130283294] [2021-10-28 08:38:42,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:38:42,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:42,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:38:42,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:42,090 INFO L87 Difference]: Start difference. First operand 534 states and 643 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 08:38:42,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:42,125 INFO L93 Difference]: Finished difference Result 588 states and 704 transitions. [2021-10-28 08:38:42,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:38:42,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2021-10-28 08:38:42,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:42,129 INFO L225 Difference]: With dead ends: 588 [2021-10-28 08:38:42,129 INFO L226 Difference]: Without dead ends: 588 [2021-10-28 08:38:42,129 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-10-28 08:38:42,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 534. [2021-10-28 08:38:42,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 427 states have (on average 1.2107728337236534) internal successors, (517), 435 states have internal predecessors, (517), 59 states have call successors, (59), 44 states have call predecessors, (59), 47 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2021-10-28 08:38:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 643 transitions. [2021-10-28 08:38:42,144 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 643 transitions. Word has length 68 [2021-10-28 08:38:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:42,144 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 643 transitions. [2021-10-28 08:38:42,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 08:38:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 643 transitions. [2021-10-28 08:38:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 08:38:42,146 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:42,146 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 08:38:42,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:42,363 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:42,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:42,363 INFO L85 PathProgramCache]: Analyzing trace with hash -518955678, now seen corresponding path program 1 times [2021-10-28 08:38:42,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:42,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99372160] [2021-10-28 08:38:42,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:42,364 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:42,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:42,365 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-28 08:38:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:43,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:38:43,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:43,564 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 08:38:43,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:43,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:43,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99372160] [2021-10-28 08:38:43,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99372160] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:43,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:43,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 08:38:43,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967364675] [2021-10-28 08:38:43,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:38:43,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:43,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:43,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:43,779 INFO L87 Difference]: Start difference. First operand 534 states and 643 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 08:38:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:43,850 INFO L93 Difference]: Finished difference Result 565 states and 675 transitions. [2021-10-28 08:38:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:43,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2021-10-28 08:38:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:43,854 INFO L225 Difference]: With dead ends: 565 [2021-10-28 08:38:43,854 INFO L226 Difference]: Without dead ends: 565 [2021-10-28 08:38:43,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:38:43,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2021-10-28 08:38:43,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 534. [2021-10-28 08:38:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 427 states have (on average 1.2060889929742389) internal successors, (515), 435 states have internal predecessors, (515), 59 states have call successors, (59), 44 states have call predecessors, (59), 47 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2021-10-28 08:38:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 641 transitions. [2021-10-28 08:38:43,871 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 641 transitions. Word has length 68 [2021-10-28 08:38:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:43,872 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 641 transitions. [2021-10-28 08:38:43,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-10-28 08:38:43,872 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 641 transitions. [2021-10-28 08:38:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:38:43,874 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:43,874 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 08:38:43,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:44,094 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:44,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:44,095 INFO L85 PathProgramCache]: Analyzing trace with hash -908431933, now seen corresponding path program 1 times [2021-10-28 08:38:44,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:44,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43410705] [2021-10-28 08:38:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:44,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:44,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:44,096 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-28 08:38:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:45,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:38:45,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:45,414 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 08:38:45,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:45,766 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:45,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43410705] [2021-10-28 08:38:45,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43410705] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:45,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:45,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-10-28 08:38:45,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536240265] [2021-10-28 08:38:45,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:38:45,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:38:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:38:45,769 INFO L87 Difference]: Start difference. First operand 534 states and 641 transitions. Second operand has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 13 states have internal predecessors, (69), 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) [2021-10-28 08:38:46,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:46,133 INFO L93 Difference]: Finished difference Result 593 states and 703 transitions. [2021-10-28 08:38:46,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 08:38:46,134 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 13 states have internal predecessors, (69), 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 61 [2021-10-28 08:38:46,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:46,136 INFO L225 Difference]: With dead ends: 593 [2021-10-28 08:38:46,137 INFO L226 Difference]: Without dead ends: 559 [2021-10-28 08:38:46,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:38:46,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-10-28 08:38:46,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 529. [2021-10-28 08:38:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 423 states have (on average 1.2056737588652482) internal successors, (510), 431 states have internal predecessors, (510), 58 states have call successors, (58), 44 states have call predecessors, (58), 47 states have return successors, (66), 54 states have call predecessors, (66), 51 states have call successors, (66) [2021-10-28 08:38:46,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 634 transitions. [2021-10-28 08:38:46,153 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 634 transitions. Word has length 61 [2021-10-28 08:38:46,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:46,153 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 634 transitions. [2021-10-28 08:38:46,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 13 states have internal predecessors, (69), 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) [2021-10-28 08:38:46,154 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 634 transitions. [2021-10-28 08:38:46,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 08:38:46,156 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:46,156 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 08:38:46,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:46,377 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:46,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1838543403, now seen corresponding path program 1 times [2021-10-28 08:38:46,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:46,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448117840] [2021-10-28 08:38:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:46,379 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:46,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:46,380 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-28 08:38:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:47,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:38:47,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:47,811 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 08:38:47,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:48,174 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 08:38:48,174 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:48,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448117840] [2021-10-28 08:38:48,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448117840] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:48,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:48,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-10-28 08:38:48,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349179542] [2021-10-28 08:38:48,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:38:48,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:38:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:38:48,176 INFO L87 Difference]: Start difference. First operand 529 states and 634 transitions. Second operand has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 13 states have internal predecessors, (69), 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) [2021-10-28 08:38:48,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:48,532 INFO L93 Difference]: Finished difference Result 588 states and 695 transitions. [2021-10-28 08:38:48,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 08:38:48,532 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 13 states have internal predecessors, (69), 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 61 [2021-10-28 08:38:48,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:48,535 INFO L225 Difference]: With dead ends: 588 [2021-10-28 08:38:48,535 INFO L226 Difference]: Without dead ends: 555 [2021-10-28 08:38:48,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:38:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-10-28 08:38:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 525. [2021-10-28 08:38:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 420 states have (on average 1.2047619047619047) internal successors, (506), 428 states have internal predecessors, (506), 57 states have call successors, (57), 44 states have call predecessors, (57), 47 states have return successors, (65), 53 states have call predecessors, (65), 50 states have call successors, (65) [2021-10-28 08:38:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 628 transitions. [2021-10-28 08:38:48,552 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 628 transitions. Word has length 61 [2021-10-28 08:38:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:48,552 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 628 transitions. [2021-10-28 08:38:48,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 13 states have internal predecessors, (69), 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) [2021-10-28 08:38:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 628 transitions. [2021-10-28 08:38:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 08:38:48,555 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:48,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:48,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:48,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:48,775 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:48,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:48,775 INFO L85 PathProgramCache]: Analyzing trace with hash -307624777, now seen corresponding path program 1 times [2021-10-28 08:38:48,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:48,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129680175] [2021-10-28 08:38:48,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:48,776 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:48,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:48,778 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:48,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-28 08:38:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:50,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:50,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:50,213 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 08:38:50,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:50,468 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 08:38:50,468 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:50,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129680175] [2021-10-28 08:38:50,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129680175] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:50,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:50,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:38:50,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132179230] [2021-10-28 08:38:50,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:38:50,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:50,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:38:50,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:50,471 INFO L87 Difference]: Start difference. First operand 525 states and 628 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 08:38:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:50,497 INFO L93 Difference]: Finished difference Result 629 states and 755 transitions. [2021-10-28 08:38:50,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:38:50,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2021-10-28 08:38:50,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:50,503 INFO L225 Difference]: With dead ends: 629 [2021-10-28 08:38:50,503 INFO L226 Difference]: Without dead ends: 629 [2021-10-28 08:38:50,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 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 08:38:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-10-28 08:38:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 599. [2021-10-28 08:38:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 478 states have (on average 1.207112970711297) internal successors, (577), 486 states have internal predecessors, (577), 64 states have call successors, (64), 51 states have call predecessors, (64), 56 states have return successors, (81), 62 states have call predecessors, (81), 58 states have call successors, (81) [2021-10-28 08:38:50,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 722 transitions. [2021-10-28 08:38:50,522 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 722 transitions. Word has length 70 [2021-10-28 08:38:50,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:50,522 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 722 transitions. [2021-10-28 08:38:50,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 08:38:50,523 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 722 transitions. [2021-10-28 08:38:50,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-28 08:38:50,525 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:50,525 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 08:38:50,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:50,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:50,745 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:50,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:50,746 INFO L85 PathProgramCache]: Analyzing trace with hash 694916100, now seen corresponding path program 1 times [2021-10-28 08:38:50,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:50,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030031269] [2021-10-28 08:38:50,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:50,747 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:50,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:50,748 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:50,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-28 08:38:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:51,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:38:51,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:52,201 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 08:38:52,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:52,573 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 08:38:52,573 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:52,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030031269] [2021-10-28 08:38:52,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030031269] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:52,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:52,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-10-28 08:38:52,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691295118] [2021-10-28 08:38:52,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:38:52,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:52,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:38:52,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:38:52,575 INFO L87 Difference]: Start difference. First operand 599 states and 722 transitions. Second operand has 17 states, 17 states have (on average 4.470588235294118) internal successors, (76), 13 states have internal predecessors, (76), 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) [2021-10-28 08:38:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:52,998 INFO L93 Difference]: Finished difference Result 665 states and 793 transitions. [2021-10-28 08:38:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 08:38:52,998 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.470588235294118) internal successors, (76), 13 states have internal predecessors, (76), 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 65 [2021-10-28 08:38:52,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:53,002 INFO L225 Difference]: With dead ends: 665 [2021-10-28 08:38:53,002 INFO L226 Difference]: Without dead ends: 583 [2021-10-28 08:38:53,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:38:53,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2021-10-28 08:38:53,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 559. [2021-10-28 08:38:53,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 444 states have (on average 1.2072072072072073) internal successors, (536), 452 states have internal predecessors, (536), 61 states have call successors, (61), 48 states have call predecessors, (61), 53 states have return successors, (78), 59 states have call predecessors, (78), 55 states have call successors, (78) [2021-10-28 08:38:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 675 transitions. [2021-10-28 08:38:53,020 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 675 transitions. Word has length 65 [2021-10-28 08:38:53,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:53,020 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 675 transitions. [2021-10-28 08:38:53,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.470588235294118) internal successors, (76), 13 states have internal predecessors, (76), 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) [2021-10-28 08:38:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 675 transitions. [2021-10-28 08:38:53,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-28 08:38:53,023 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:53,023 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] [2021-10-28 08:38:53,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:53,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:53,244 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:53,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:53,244 INFO L85 PathProgramCache]: Analyzing trace with hash 989713954, now seen corresponding path program 1 times [2021-10-28 08:38:53,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:53,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082456069] [2021-10-28 08:38:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:53,245 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:53,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:53,246 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:53,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-28 08:38:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:54,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:38:54,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:54,818 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 08:38:54,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:55,095 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 08:38:55,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:55,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082456069] [2021-10-28 08:38:55,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082456069] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:55,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:55,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-10-28 08:38:55,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705145903] [2021-10-28 08:38:55,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:38:55,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:55,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:38:55,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:38:55,097 INFO L87 Difference]: Start difference. First operand 559 states and 675 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 08:38:55,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:55,958 INFO L93 Difference]: Finished difference Result 584 states and 700 transitions. [2021-10-28 08:38:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:38:55,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 79 [2021-10-28 08:38:55,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:55,962 INFO L225 Difference]: With dead ends: 584 [2021-10-28 08:38:55,962 INFO L226 Difference]: Without dead ends: 584 [2021-10-28 08:38:55,962 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:38:55,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2021-10-28 08:38:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 543. [2021-10-28 08:38:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 431 states have (on average 1.2064965197215778) internal successors, (520), 438 states have internal predecessors, (520), 60 states have call successors, (60), 48 states have call predecessors, (60), 51 states have return successors, (70), 57 states have call predecessors, (70), 54 states have call successors, (70) [2021-10-28 08:38:55,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 650 transitions. [2021-10-28 08:38:55,978 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 650 transitions. Word has length 79 [2021-10-28 08:38:55,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:55,979 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 650 transitions. [2021-10-28 08:38:55,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 08:38:55,979 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 650 transitions. [2021-10-28 08:38:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-28 08:38:55,981 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:55,982 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, 1] [2021-10-28 08:38:56,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:56,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:56,202 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:56,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1026344045, now seen corresponding path program 1 times [2021-10-28 08:38:56,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:56,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022566578] [2021-10-28 08:38:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:56,203 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:56,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:56,205 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:56,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-28 08:38:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:57,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:38:57,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:57,747 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 08:38:57,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:38:57,972 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 08:38:57,973 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:38:57,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022566578] [2021-10-28 08:38:57,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022566578] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:57,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:57,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 08:38:57,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698463547] [2021-10-28 08:38:57,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:38:57,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:38:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:57,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:57,977 INFO L87 Difference]: Start difference. First operand 543 states and 650 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 08:38:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:58,025 INFO L93 Difference]: Finished difference Result 604 states and 750 transitions. [2021-10-28 08:38:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:58,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2021-10-28 08:38:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:58,030 INFO L225 Difference]: With dead ends: 604 [2021-10-28 08:38:58,031 INFO L226 Difference]: Without dead ends: 604 [2021-10-28 08:38:58,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:38:58,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-28 08:38:58,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 509. [2021-10-28 08:38:58,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 408 states have (on average 1.2058823529411764) internal successors, (492), 414 states have internal predecessors, (492), 53 states have call successors, (53), 42 states have call predecessors, (53), 47 states have return successors, (61), 53 states have call predecessors, (61), 48 states have call successors, (61) [2021-10-28 08:38:58,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 606 transitions. [2021-10-28 08:38:58,046 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 606 transitions. Word has length 80 [2021-10-28 08:38:58,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:58,050 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 606 transitions. [2021-10-28 08:38:58,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-10-28 08:38:58,051 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 606 transitions. [2021-10-28 08:38:58,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-28 08:38:58,052 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:58,053 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] [2021-10-28 08:38:58,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:58,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:38:58,273 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:38:58,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:58,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1613689940, now seen corresponding path program 1 times [2021-10-28 08:38:58,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:38:58,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236814722] [2021-10-28 08:38:58,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:58,275 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:38:58,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:38:58,276 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:38:58,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-28 08:38:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:59,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:38:59,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:59,983 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 08:38:59,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:39:00,388 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 08:39:00,389 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:39:00,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236814722] [2021-10-28 08:39:00,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236814722] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:00,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:00,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-28 08:39:00,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468215761] [2021-10-28 08:39:00,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:39:00,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:39:00,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:39:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:39:00,391 INFO L87 Difference]: Start difference. First operand 509 states and 606 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 7 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2021-10-28 08:39:01,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:01,166 INFO L93 Difference]: Finished difference Result 724 states and 844 transitions. [2021-10-28 08:39:01,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:39:01,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 7 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) Word has length 79 [2021-10-28 08:39:01,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:01,171 INFO L225 Difference]: With dead ends: 724 [2021-10-28 08:39:01,171 INFO L226 Difference]: Without dead ends: 724 [2021-10-28 08:39:01,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:39:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-10-28 08:39:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 625. [2021-10-28 08:39:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 501 states have (on average 1.1976047904191616) internal successors, (600), 510 states have internal predecessors, (600), 61 states have call successors, (61), 54 states have call predecessors, (61), 62 states have return successors, (72), 61 states have call predecessors, (72), 56 states have call successors, (72) [2021-10-28 08:39:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 733 transitions. [2021-10-28 08:39:01,197 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 733 transitions. Word has length 79 [2021-10-28 08:39:01,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:01,197 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 733 transitions. [2021-10-28 08:39:01,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 7 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2021-10-28 08:39:01,198 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 733 transitions. [2021-10-28 08:39:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-28 08:39:01,200 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:01,200 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, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:01,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:01,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:39:01,420 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:39:01,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:01,420 INFO L85 PathProgramCache]: Analyzing trace with hash 530825079, now seen corresponding path program 1 times [2021-10-28 08:39:01,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:39:01,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278929024] [2021-10-28 08:39:01,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:01,421 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:39:01,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:39:01,422 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:39:01,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-28 08:39:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:02,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:39:02,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:03,012 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 08:39:03,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:39:03,387 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 08:39:03,388 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:39:03,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278929024] [2021-10-28 08:39:03,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278929024] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:03,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:03,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-28 08:39:03,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392986472] [2021-10-28 08:39:03,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:39:03,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:39:03,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:39:03,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:39:03,391 INFO L87 Difference]: Start difference. First operand 625 states and 733 transitions. Second operand has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 3 states have call successors, (12) [2021-10-28 08:39:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:03,689 INFO L93 Difference]: Finished difference Result 713 states and 824 transitions. [2021-10-28 08:39:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 08:39:03,690 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 3 states have call successors, (12) Word has length 85 [2021-10-28 08:39:03,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:03,694 INFO L225 Difference]: With dead ends: 713 [2021-10-28 08:39:03,694 INFO L226 Difference]: Without dead ends: 677 [2021-10-28 08:39:03,695 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2021-10-28 08:39:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-10-28 08:39:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 625. [2021-10-28 08:39:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 501 states have (on average 1.1956087824351298) internal successors, (599), 510 states have internal predecessors, (599), 61 states have call successors, (61), 54 states have call predecessors, (61), 62 states have return successors, (72), 61 states have call predecessors, (72), 56 states have call successors, (72) [2021-10-28 08:39:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 732 transitions. [2021-10-28 08:39:03,721 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 732 transitions. Word has length 85 [2021-10-28 08:39:03,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:03,722 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 732 transitions. [2021-10-28 08:39:03,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 3 states have call successors, (12) [2021-10-28 08:39:03,722 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 732 transitions. [2021-10-28 08:39:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-28 08:39:03,724 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:03,725 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, 1] [2021-10-28 08:39:03,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:03,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:39:03,941 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:39:03,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:03,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1801553067, now seen corresponding path program 1 times [2021-10-28 08:39:03,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:39:03,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793051831] [2021-10-28 08:39:03,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:03,942 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:39:03,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:39:03,943 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:39:03,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-28 08:39:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:05,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:39:05,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:05,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:39:05,667 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 08:39:05,667 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:39:05,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793051831] [2021-10-28 08:39:05,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793051831] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:05,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:05,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:39:05,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717661841] [2021-10-28 08:39:05,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:39:05,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:39:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:39:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:39:05,669 INFO L87 Difference]: Start difference. First operand 625 states and 732 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-10-28 08:39:05,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:05,711 INFO L93 Difference]: Finished difference Result 632 states and 738 transitions. [2021-10-28 08:39:05,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:39:05,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 80 [2021-10-28 08:39:05,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:05,714 INFO L225 Difference]: With dead ends: 632 [2021-10-28 08:39:05,714 INFO L226 Difference]: Without dead ends: 632 [2021-10-28 08:39:05,715 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 [2021-10-28 08:39:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2021-10-28 08:39:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 625. [2021-10-28 08:39:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 501 states have (on average 1.1956087824351298) internal successors, (599), 510 states have internal predecessors, (599), 61 states have call successors, (61), 54 states have call predecessors, (61), 62 states have return successors, (72), 61 states have call predecessors, (72), 56 states have call successors, (72) [2021-10-28 08:39:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 732 transitions. [2021-10-28 08:39:05,731 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 732 transitions. Word has length 80 [2021-10-28 08:39:05,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:05,731 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 732 transitions. [2021-10-28 08:39:05,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-10-28 08:39:05,732 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 732 transitions. [2021-10-28 08:39:05,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-28 08:39:05,734 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:05,734 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, 1, 1] [2021-10-28 08:39:05,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:05,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:39:05,954 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:39:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:05,955 INFO L85 PathProgramCache]: Analyzing trace with hash -5151726, now seen corresponding path program 1 times [2021-10-28 08:39:05,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:39:05,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768800316] [2021-10-28 08:39:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:05,956 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:39:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:39:05,957 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:39:05,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-28 08:39:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:07,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:39:07,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:07,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:39:07,796 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 08:39:07,796 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:39:07,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768800316] [2021-10-28 08:39:07,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768800316] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:07,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:07,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 08:39:07,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454413436] [2021-10-28 08:39:07,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:39:07,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:39:07,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:39:07,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:39:07,798 INFO L87 Difference]: Start difference. First operand 625 states and 732 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 08:39:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:07,823 INFO L93 Difference]: Finished difference Result 627 states and 730 transitions. [2021-10-28 08:39:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:39:07,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2021-10-28 08:39:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:07,826 INFO L225 Difference]: With dead ends: 627 [2021-10-28 08:39:07,826 INFO L226 Difference]: Without dead ends: 627 [2021-10-28 08:39:07,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 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 08:39:07,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-10-28 08:39:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 625. [2021-10-28 08:39:07,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 501 states have (on average 1.1896207584830338) internal successors, (596), 510 states have internal predecessors, (596), 61 states have call successors, (61), 54 states have call predecessors, (61), 62 states have return successors, (72), 61 states have call predecessors, (72), 56 states have call successors, (72) [2021-10-28 08:39:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 729 transitions. [2021-10-28 08:39:07,843 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 729 transitions. Word has length 81 [2021-10-28 08:39:07,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:07,843 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 729 transitions. [2021-10-28 08:39:07,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 08:39:07,844 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 729 transitions. [2021-10-28 08:39:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-28 08:39:07,846 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:07,846 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, 1, 1, 1] [2021-10-28 08:39:07,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:08,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:39:08,068 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-10-28 08:39:08,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:08,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1875622583, now seen corresponding path program 1 times [2021-10-28 08:39:08,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:39:08,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054861026] [2021-10-28 08:39:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:08,069 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:39:08,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:39:08,070 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:39:08,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-28 08:39:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:09,592 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:10,141 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 08:39:10,142 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:39:10,143 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 08:39:10,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:39:10,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-10-28 08:39:10,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:39:10,363 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] [2021-10-28 08:39:10,368 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:39:10,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:39:10 BoogieIcfgContainer [2021-10-28 08:39:10,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:39:10,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:39:10,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:39:10,667 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:39:10,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:37:55" (3/4) ... [2021-10-28 08:39:10,671 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:39:10,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:39:10,673 INFO L168 Benchmark]: Toolchain (without parser) took 77658.22 ms. Allocated memory was 83.9 MB in the beginning and 205.5 MB in the end (delta: 121.6 MB). Free memory was 47.7 MB in the beginning and 57.7 MB in the end (delta: -10.0 MB). Peak memory consumption was 114.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:10,674 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:10,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.35 ms. Allocated memory is still 83.9 MB. Free memory was 47.5 MB in the beginning and 61.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:10,675 INFO L168 Benchmark]: Boogie Preprocessor took 190.31 ms. Allocated memory is still 83.9 MB. Free memory was 61.3 MB in the beginning and 57.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:10,676 INFO L168 Benchmark]: RCFGBuilder took 1375.20 ms. Allocated memory is still 83.9 MB. Free memory was 57.6 MB in the beginning and 50.4 MB in the end (delta: 7.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:10,676 INFO L168 Benchmark]: TraceAbstraction took 75438.71 ms. Allocated memory was 83.9 MB in the beginning and 205.5 MB in the end (delta: 121.6 MB). Free memory was 50.0 MB in the beginning and 57.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 113.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:10,677 INFO L168 Benchmark]: Witness Printer took 4.87 ms. Allocated memory is still 205.5 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:10,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 641.35 ms. Allocated memory is still 83.9 MB. Free memory was 47.5 MB in the beginning and 61.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 190.31 ms. Allocated memory is still 83.9 MB. Free memory was 61.3 MB in the beginning and 57.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1375.20 ms. Allocated memory is still 83.9 MB. Free memory was 57.6 MB in the beginning and 50.4 MB in the end (delta: 7.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 75438.71 ms. Allocated memory was 83.9 MB in the beginning and 205.5 MB in the end (delta: 121.6 MB). Free memory was 50.0 MB in the beginning and 57.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 113.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.87 ms. Allocated memory is still 205.5 MB. Free memory is still 57.7 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: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [\old(compRegistered)=11, \old(customIrp)=41, \old(DC)=20, \old(DiskController)=21, \old(Executive)=25, \old(FlConfigCallBack)=15, \old(FloppyDiskPeripheral)=29, \old(FloppyThread)=28, \old(IPC)=39, \old(KernelMode)=19, \old(lowerDriverReturn)=24, \old(MaximumInterfaceType)=36, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=23, \old(MPR1)=42, \old(MPR3)=37, \old(myStatus)=8, \old(NP)=40, \old(PagingMutex)=10, \old(PagingReferenceCount)=31, \old(pended)=38, \old(s)=26, \old(setEventCalled)=34, \old(SKIP1)=18, \old(SKIP2)=32, \old(Suspended)=9, \old(UNLOADED)=16, compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=44, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=0, UNLOADED=0] [L708] CALL _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L708] RET _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=44, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=44, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=44, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] CALL stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] RET stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=44, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=44, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] CALL, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L160] return (259); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L259] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265-L266] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1045] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1049] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1064] return (0); VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L265-L266] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=256, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=257, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L1006] return (returnVal2); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=44, KernelMode=0, lcontext=58, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L284] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=257, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=257, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=257, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=45, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=44, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=45, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=44, Irp__CurrentLocation=257, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] RET, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyPnp(devobj, pirp)=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L767] COND TRUE status != -1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L783] COND TRUE status != 259 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=45, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=44, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=44, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L784] CALL errorFn() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 670]: 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 27 procedures, 309 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 75.0s, OverallIterations: 39, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14050 SDtfs, 11067 SDslu, 40487 SDs, 0 SdLazy, 7912 SolverSat, 2010 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4217 GetRequests, 3948 SyntacticMatches, 0 SemanticMatches, 269 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=769occurred in iteration=11, InterpolantAutomatonStates: 284, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 38 MinimizatonAttempts, 1280 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 5.6s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 2179 NumberOfCodeBlocks, 2179 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 4118 ConstructedInterpolants, 0 QuantifiedInterpolants, 9287 SizeOfPredicates, 53 NumberOfNonLiveVariables, 14609 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 76 InterpolantComputations, 76 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 08:39:10,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31cb00d-4b18-4847-925b-e5d2a41eb06c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...