./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:22:21,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:22:21,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:22:21,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:22:21,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:22:21,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:22:21,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:22:21,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:22:21,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:22:21,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:22:21,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:22:21,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:22:21,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:22:21,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:22:21,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:22:21,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:22:21,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:22:21,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:22:21,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:22:21,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:22:21,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:22:21,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:22:21,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:22:21,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:22:21,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:22:21,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:22:21,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:22:21,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:22:21,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:22:21,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:22:21,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:22:21,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:22:21,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:22:21,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:22:21,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:22:21,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:22:21,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:22:21,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:22:21,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:22:21,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:22:21,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:22:21,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:22:22,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:22:22,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:22:22,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:22:22,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:22:22,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:22:22,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:22:22,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:22:22,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:22:22,005 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:22:22,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:22:22,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:22:22,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:22:22,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:22:22,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:22:22,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:22:22,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:22:22,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:22:22,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:22:22,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:22:22,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:22:22,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:22:22,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:22:22,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:22:22,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:22:22,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:22:22,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:22:22,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:22:22,012 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:22:22,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:22:22,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:22:22,013 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_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 [2022-11-21 16:22:22,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:22:22,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:22:22,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:22:22,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:22:22,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:22:22,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-11-21 16:22:25,491 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:22:26,175 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:22:26,176 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-11-21 16:22:26,239 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data/7dad2e325/f47c4c4fb11b4f5bac618eb7a84ec3c8/FLAG00940135a [2022-11-21 16:22:26,257 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data/7dad2e325/f47c4c4fb11b4f5bac618eb7a84ec3c8 [2022-11-21 16:22:26,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:22:26,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:22:26,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:22:26,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:22:26,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:22:26,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:22:26" (1/1) ... [2022-11-21 16:22:26,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727f3b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:26, skipping insertion in model container [2022-11-21 16:22:26,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:22:26" (1/1) ... [2022-11-21 16:22:26,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:22:26,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:22:27,525 WARN L237 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_41174cab-f88b-4519-9a93-68aa2a371b30/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-11-21 16:22:28,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:22:28,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:22:28,416 WARN L237 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_41174cab-f88b-4519-9a93-68aa2a371b30/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-11-21 16:22:28,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:22:28,733 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:22:28,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28 WrapperNode [2022-11-21 16:22:28,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:22:28,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:22:28,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:22:28,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:22:28,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:28,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:28,943 INFO L138 Inliner]: procedures = 163, calls = 1186, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 3077 [2022-11-21 16:22:28,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:22:28,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:22:28,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:22:28,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:22:28,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:28,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:28,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:28,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:29,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:29,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:29,079 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:29,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:29,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:22:29,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:22:29,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:22:29,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:22:29,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (1/1) ... [2022-11-21 16:22:29,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:22:29,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:29,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:22:29,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:22:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-21 16:22:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-21 16:22:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unregister_dev [2022-11-21 16:22:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unregister_dev [2022-11-21 16:22:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2022-11-21 16:22:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2022-11-21 16:22:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-21 16:22:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-21 16:22:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 16:22:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-11-21 16:22:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-11-21 16:22:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 16:22:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:22:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-21 16:22:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-21 16:22:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:22:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:22:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:22:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-21 16:22:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-21 16:22:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-21 16:22:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-21 16:22:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-21 16:22:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-21 16:22:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 16:22:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 16:22:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2022-11-21 16:22:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2022-11-21 16:22:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-21 16:22:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-21 16:22:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:22:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:22:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-21 16:22:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-21 16:22:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-21 16:22:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-21 16:22:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-11-21 16:22:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-11-21 16:22:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2022-11-21 16:22:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2022-11-21 16:22:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:22:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:22:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:22:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:22:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:22:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_complete [2022-11-21 16:22:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_complete [2022-11-21 16:22:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-21 16:22:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-21 16:22:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-21 16:22:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-21 16:22:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:22:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:22:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 16:22:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 16:22:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 16:22:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 16:22:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:22:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:22:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:22:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-21 16:22:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-21 16:22:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-21 16:22:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-21 16:22:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:22:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-21 16:22:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-21 16:22:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 16:22:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 16:22:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:22:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:22:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:22:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:22:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2022-11-21 16:22:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2022-11-21 16:22:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2022-11-21 16:22:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2022-11-21 16:22:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:22:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-21 16:22:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-21 16:22:29,218 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-21 16:22:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-21 16:22:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:22:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:22:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_10 [2022-11-21 16:22:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_10 [2022-11-21 16:22:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-21 16:22:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-21 16:22:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-21 16:22:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-21 16:22:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:22:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2022-11-21 16:22:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2022-11-21 16:22:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-21 16:22:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-21 16:22:29,222 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-21 16:22:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-21 16:22:29,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 16:22:29,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-21 16:22:29,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 16:22:29,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 16:22:29,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:22:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:22:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-11-21 16:22:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-11-21 16:22:29,961 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:22:29,967 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:22:30,435 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:22:31,476 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-21 16:22:35,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:22:35,542 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:22:35,544 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:22:35,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:22:35 BoogieIcfgContainer [2022-11-21 16:22:35,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:22:35,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:22:35,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:22:35,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:22:35,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:22:26" (1/3) ... [2022-11-21 16:22:35,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5205321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:22:35, skipping insertion in model container [2022-11-21 16:22:35,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:28" (2/3) ... [2022-11-21 16:22:35,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5205321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:22:35, skipping insertion in model container [2022-11-21 16:22:35,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:22:35" (3/3) ... [2022-11-21 16:22:35,557 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-11-21 16:22:35,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:22:35,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:22:35,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:22:35,662 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35980d2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:22:35,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:22:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 853 states, 629 states have (on average 1.3847376788553258) internal successors, (871), 655 states have internal predecessors, (871), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) [2022-11-21 16:22:35,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-21 16:22:35,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:35,686 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:35,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:22:35,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2002313727, now seen corresponding path program 1 times [2022-11-21 16:22:35,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:35,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566717268] [2022-11-21 16:22:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:35,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:22:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:22:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:22:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:22:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:22:36,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:36,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566717268] [2022-11-21 16:22:36,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566717268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:36,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:36,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:22:36,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18662165] [2022-11-21 16:22:36,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:36,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:22:36,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:36,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:22:36,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:22:36,688 INFO L87 Difference]: Start difference. First operand has 853 states, 629 states have (on average 1.3847376788553258) internal successors, (871), 655 states have internal predecessors, (871), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:22:39,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:41,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:47,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:47,850 INFO L93 Difference]: Finished difference Result 2748 states and 4114 transitions. [2022-11-21 16:22:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:22:47,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2022-11-21 16:22:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:47,924 INFO L225 Difference]: With dead ends: 2748 [2022-11-21 16:22:47,924 INFO L226 Difference]: Without dead ends: 1876 [2022-11-21 16:22:47,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:22:47,940 INFO L413 NwaCegarLoop]: 1199 mSDtfsCounter, 1928 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 982 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 982 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:47,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 3245 Invalid, 2652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [982 Valid, 1668 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-11-21 16:22:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2022-11-21 16:22:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1608. [2022-11-21 16:22:48,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1193 states have (on average 1.374685666387259) internal successors, (1640), 1225 states have internal predecessors, (1640), 332 states have call successors, (332), 83 states have call predecessors, (332), 82 states have return successors, (327), 311 states have call predecessors, (327), 327 states have call successors, (327) [2022-11-21 16:22:48,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2299 transitions. [2022-11-21 16:22:48,203 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2299 transitions. Word has length 44 [2022-11-21 16:22:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:48,204 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2299 transitions. [2022-11-21 16:22:48,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:22:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2299 transitions. [2022-11-21 16:22:48,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-21 16:22:48,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:48,220 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:48,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:22:48,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:22:48,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:48,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1296792476, now seen corresponding path program 1 times [2022-11-21 16:22:48,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:48,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031867787] [2022-11-21 16:22:48,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:48,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:49,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:22:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:22:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:22:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:49,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:22:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:22:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:22:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:22:49,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:49,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031867787] [2022-11-21 16:22:49,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031867787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:49,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:49,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:22:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189686132] [2022-11-21 16:22:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:49,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:22:49,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:22:49,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:22:49,811 INFO L87 Difference]: Start difference. First operand 1608 states and 2299 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-21 16:22:52,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:22:54,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:01,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:23:01,197 INFO L93 Difference]: Finished difference Result 3820 states and 5608 transitions. [2022-11-21 16:23:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:23:01,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 61 [2022-11-21 16:23:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:23:01,218 INFO L225 Difference]: With dead ends: 3820 [2022-11-21 16:23:01,218 INFO L226 Difference]: Without dead ends: 2223 [2022-11-21 16:23:01,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:23:01,227 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 902 mSDsluCounter, 6534 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 467 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 8028 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:23:01,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 8028 Invalid, 3269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [467 Valid, 2800 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2022-11-21 16:23:01,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2022-11-21 16:23:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 1608. [2022-11-21 16:23:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1193 states have (on average 1.3738474434199497) internal successors, (1639), 1225 states have internal predecessors, (1639), 332 states have call successors, (332), 83 states have call predecessors, (332), 82 states have return successors, (327), 311 states have call predecessors, (327), 327 states have call successors, (327) [2022-11-21 16:23:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2298 transitions. [2022-11-21 16:23:01,370 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2298 transitions. Word has length 61 [2022-11-21 16:23:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:23:01,371 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2298 transitions. [2022-11-21 16:23:01,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-21 16:23:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2298 transitions. [2022-11-21 16:23:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-21 16:23:01,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:23:01,374 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:23:01,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:23:01,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:23:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:23:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1515647194, now seen corresponding path program 1 times [2022-11-21 16:23:01,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:23:01,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128197977] [2022-11-21 16:23:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:23:01,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:23:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:23:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:23:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:23:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:23:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:23:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:23:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:23:02,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:23:02,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128197977] [2022-11-21 16:23:02,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128197977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:23:02,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:23:02,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:23:02,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106611834] [2022-11-21 16:23:02,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:23:02,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:23:02,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:23:02,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:23:02,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:23:02,150 INFO L87 Difference]: Start difference. First operand 1608 states and 2298 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:04,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:06,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:10,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:12,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:17,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:23:17,091 INFO L93 Difference]: Finished difference Result 5337 states and 7924 transitions. [2022-11-21 16:23:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:23:17,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2022-11-21 16:23:17,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:23:17,120 INFO L225 Difference]: With dead ends: 5337 [2022-11-21 16:23:17,120 INFO L226 Difference]: Without dead ends: 3740 [2022-11-21 16:23:17,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:23:17,135 INFO L413 NwaCegarLoop]: 1248 mSDtfsCounter, 1977 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 977 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:23:17,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 3341 Invalid, 2636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [977 Valid, 1655 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2022-11-21 16:23:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2022-11-21 16:23:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3278. [2022-11-21 16:23:17,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 2426 states have (on average 1.368507831821929) internal successors, (3320), 2496 states have internal predecessors, (3320), 671 states have call successors, (671), 165 states have call predecessors, (671), 180 states have return successors, (762), 642 states have call predecessors, (762), 666 states have call successors, (762) [2022-11-21 16:23:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 4753 transitions. [2022-11-21 16:23:17,343 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 4753 transitions. Word has length 61 [2022-11-21 16:23:17,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:23:17,346 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 4753 transitions. [2022-11-21 16:23:17,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 4753 transitions. [2022-11-21 16:23:17,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-21 16:23:17,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:23:17,349 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:23:17,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:23:17,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:23:17,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:23:17,350 INFO L85 PathProgramCache]: Analyzing trace with hash -259943975, now seen corresponding path program 1 times [2022-11-21 16:23:17,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:23:17,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894652710] [2022-11-21 16:23:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:23:17,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:23:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:23:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:23:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:23:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:23:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:23:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:23:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:23:18,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:23:18,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894652710] [2022-11-21 16:23:18,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894652710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:23:18,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:23:18,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:23:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536477758] [2022-11-21 16:23:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:23:18,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:23:18,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:23:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:23:18,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:23:18,044 INFO L87 Difference]: Start difference. First operand 3278 states and 4753 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:20,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:22,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:28,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:23:28,106 INFO L93 Difference]: Finished difference Result 10707 states and 16155 transitions. [2022-11-21 16:23:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:23:28,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62 [2022-11-21 16:23:28,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:23:28,163 INFO L225 Difference]: With dead ends: 10707 [2022-11-21 16:23:28,163 INFO L226 Difference]: Without dead ends: 7440 [2022-11-21 16:23:28,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:23:28,184 INFO L413 NwaCegarLoop]: 1189 mSDtfsCounter, 2035 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 1000 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:23:28,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 3207 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 1619 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2022-11-21 16:23:28,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7440 states. [2022-11-21 16:23:28,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7440 to 6611. [2022-11-21 16:23:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 4885 states have (on average 1.3637666325486182) internal successors, (6662), 5031 states have internal predecessors, (6662), 1349 states have call successors, (1349), 329 states have call predecessors, (1349), 376 states have return successors, (1702), 1304 states have call predecessors, (1702), 1344 states have call successors, (1702) [2022-11-21 16:23:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 9713 transitions. [2022-11-21 16:23:28,668 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 9713 transitions. Word has length 62 [2022-11-21 16:23:28,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:23:28,671 INFO L495 AbstractCegarLoop]: Abstraction has 6611 states and 9713 transitions. [2022-11-21 16:23:28,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 9713 transitions. [2022-11-21 16:23:28,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-21 16:23:28,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:23:28,675 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:23:28,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:23:28,675 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:23:28,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:23:28,676 INFO L85 PathProgramCache]: Analyzing trace with hash 531309501, now seen corresponding path program 1 times [2022-11-21 16:23:28,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:23:28,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378260927] [2022-11-21 16:23:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:23:28,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:23:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:23:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:23:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:23:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:23:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:23:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:23:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:23:29,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:23:29,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378260927] [2022-11-21 16:23:29,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378260927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:23:29,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:23:29,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:23:29,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140091969] [2022-11-21 16:23:29,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:23:29,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:23:29,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:23:29,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:23:29,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:23:29,029 INFO L87 Difference]: Start difference. First operand 6611 states and 9713 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:31,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:33,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:23:39,381 INFO L93 Difference]: Finished difference Result 7438 states and 11140 transitions. [2022-11-21 16:23:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:23:39,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2022-11-21 16:23:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:23:39,434 INFO L225 Difference]: With dead ends: 7438 [2022-11-21 16:23:39,434 INFO L226 Difference]: Without dead ends: 7435 [2022-11-21 16:23:39,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:23:39,440 INFO L413 NwaCegarLoop]: 1210 mSDtfsCounter, 2018 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 991 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 991 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:23:39,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 3241 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [991 Valid, 1633 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2022-11-21 16:23:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7435 states. [2022-11-21 16:23:39,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7435 to 6612. [2022-11-21 16:23:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6612 states, 4886 states have (on average 1.3636921817437577) internal successors, (6663), 5032 states have internal predecessors, (6663), 1349 states have call successors, (1349), 329 states have call predecessors, (1349), 376 states have return successors, (1702), 1304 states have call predecessors, (1702), 1344 states have call successors, (1702) [2022-11-21 16:23:40,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6612 states to 6612 states and 9714 transitions. [2022-11-21 16:23:40,035 INFO L78 Accepts]: Start accepts. Automaton has 6612 states and 9714 transitions. Word has length 63 [2022-11-21 16:23:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:23:40,036 INFO L495 AbstractCegarLoop]: Abstraction has 6612 states and 9714 transitions. [2022-11-21 16:23:40,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:40,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6612 states and 9714 transitions. [2022-11-21 16:23:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-21 16:23:40,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:23:40,045 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:23:40,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:23:40,045 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:23:40,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:23:40,046 INFO L85 PathProgramCache]: Analyzing trace with hash -709631652, now seen corresponding path program 1 times [2022-11-21 16:23:40,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:23:40,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747407420] [2022-11-21 16:23:40,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:23:40,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:23:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:40,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:23:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:40,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:23:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:40,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:23:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:23:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:23:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:23:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:23:40,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:23:40,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747407420] [2022-11-21 16:23:40,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747407420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:23:40,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:23:40,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:23:40,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636073350] [2022-11-21 16:23:40,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:23:40,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:23:40,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:23:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:23:40,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:23:40,412 INFO L87 Difference]: Start difference. First operand 6612 states and 9714 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:42,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:44,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:23:48,391 INFO L93 Difference]: Finished difference Result 7434 states and 11136 transitions. [2022-11-21 16:23:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:23:48,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 64 [2022-11-21 16:23:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:23:48,441 INFO L225 Difference]: With dead ends: 7434 [2022-11-21 16:23:48,441 INFO L226 Difference]: Without dead ends: 7431 [2022-11-21 16:23:48,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:23:48,447 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 1548 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 546 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:23:48,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 2120 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 910 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-21 16:23:48,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7431 states. [2022-11-21 16:23:48,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7431 to 6611. [2022-11-21 16:23:48,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 4886 states have (on average 1.3634875153499795) internal successors, (6662), 5031 states have internal predecessors, (6662), 1348 states have call successors, (1348), 329 states have call predecessors, (1348), 376 states have return successors, (1702), 1304 states have call predecessors, (1702), 1344 states have call successors, (1702) [2022-11-21 16:23:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 9712 transitions. [2022-11-21 16:23:48,994 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 9712 transitions. Word has length 64 [2022-11-21 16:23:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:23:48,995 INFO L495 AbstractCegarLoop]: Abstraction has 6611 states and 9712 transitions. [2022-11-21 16:23:48,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 9712 transitions. [2022-11-21 16:23:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-21 16:23:48,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:23:48,997 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:23:48,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:23:48,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:23:48,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:23:48,998 INFO L85 PathProgramCache]: Analyzing trace with hash -524096864, now seen corresponding path program 1 times [2022-11-21 16:23:48,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:23:48,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869292370] [2022-11-21 16:23:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:23:48,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:23:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:23:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:49,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:23:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:23:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:23:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:23:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:23:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:23:49,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:23:49,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869292370] [2022-11-21 16:23:49,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869292370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:23:49,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:23:49,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:23:49,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086496703] [2022-11-21 16:23:49,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:23:49,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:23:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:23:49,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:23:49,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:23:49,338 INFO L87 Difference]: Start difference. First operand 6611 states and 9712 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:51,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:53,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:23:57,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:23:57,330 INFO L93 Difference]: Finished difference Result 7433 states and 11134 transitions. [2022-11-21 16:23:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:23:57,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2022-11-21 16:23:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:23:57,402 INFO L225 Difference]: With dead ends: 7433 [2022-11-21 16:23:57,402 INFO L226 Difference]: Without dead ends: 7401 [2022-11-21 16:23:57,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:23:57,411 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 1564 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 544 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:23:57,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 2093 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 892 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-21 16:23:57,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2022-11-21 16:23:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 6581. [2022-11-21 16:23:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6581 states, 4859 states have (on average 1.36324346573369) internal successors, (6624), 5003 states have internal predecessors, (6624), 1345 states have call successors, (1345), 329 states have call predecessors, (1345), 376 states have return successors, (1696), 1302 states have call predecessors, (1696), 1342 states have call successors, (1696) [2022-11-21 16:23:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6581 states to 6581 states and 9665 transitions. [2022-11-21 16:23:57,985 INFO L78 Accepts]: Start accepts. Automaton has 6581 states and 9665 transitions. Word has length 65 [2022-11-21 16:23:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:23:57,987 INFO L495 AbstractCegarLoop]: Abstraction has 6581 states and 9665 transitions. [2022-11-21 16:23:57,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:23:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6581 states and 9665 transitions. [2022-11-21 16:23:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-21 16:23:57,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:23:57,993 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:23:57,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:23:57,994 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:23:57,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:23:57,995 INFO L85 PathProgramCache]: Analyzing trace with hash -67737105, now seen corresponding path program 1 times [2022-11-21 16:23:57,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:23:57,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208425204] [2022-11-21 16:23:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:23:57,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:23:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:23:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:23:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:23:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:23:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:23:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:23:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:23:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:23:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 16:23:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:23:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:23:58,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:23:58,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208425204] [2022-11-21 16:23:58,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208425204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:23:58,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:23:58,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:23:58,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312028171] [2022-11-21 16:23:58,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:23:58,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:23:58,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:23:58,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:23:58,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:23:58,314 INFO L87 Difference]: Start difference. First operand 6581 states and 9665 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 16:24:00,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:02,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:04,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:12,499 INFO L93 Difference]: Finished difference Result 20425 states and 30360 transitions. [2022-11-21 16:24:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:24:12,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2022-11-21 16:24:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:12,578 INFO L225 Difference]: With dead ends: 20425 [2022-11-21 16:24:12,578 INFO L226 Difference]: Without dead ends: 13855 [2022-11-21 16:24:12,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:24:12,611 INFO L413 NwaCegarLoop]: 1354 mSDtfsCounter, 1937 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 1203 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 4379 SdHoareTripleChecker+Invalid, 3659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1203 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:12,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 4379 Invalid, 3659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1203 Valid, 2453 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-11-21 16:24:12,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13855 states. [2022-11-21 16:24:13,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13855 to 12405. [2022-11-21 16:24:13,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12405 states, 9072 states have (on average 1.346009700176367) internal successors, (12211), 9391 states have internal predecessors, (12211), 2516 states have call successors, (2516), 623 states have call predecessors, (2516), 816 states have return successors, (3667), 2490 states have call predecessors, (3667), 2513 states have call successors, (3667) [2022-11-21 16:24:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12405 states to 12405 states and 18394 transitions. [2022-11-21 16:24:13,784 INFO L78 Accepts]: Start accepts. Automaton has 12405 states and 18394 transitions. Word has length 98 [2022-11-21 16:24:13,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:13,785 INFO L495 AbstractCegarLoop]: Abstraction has 12405 states and 18394 transitions. [2022-11-21 16:24:13,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 16:24:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 12405 states and 18394 transitions. [2022-11-21 16:24:13,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-21 16:24:13,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:13,798 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:13,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:24:13,799 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1706032167, now seen corresponding path program 1 times [2022-11-21 16:24:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:13,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302585909] [2022-11-21 16:24:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:24:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:24:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:24:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:24:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:24:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:24:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:24:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:24:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:15,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:24:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-21 16:24:15,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:15,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302585909] [2022-11-21 16:24:15,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302585909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:15,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:15,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:24:15,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238695666] [2022-11-21 16:24:15,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:15,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:24:15,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:24:15,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:24:15,075 INFO L87 Difference]: Start difference. First operand 12405 states and 18394 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:24:17,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:19,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:21,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:27,680 INFO L93 Difference]: Finished difference Result 26195 states and 39029 transitions. [2022-11-21 16:24:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:24:27,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 124 [2022-11-21 16:24:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:27,760 INFO L225 Difference]: With dead ends: 26195 [2022-11-21 16:24:27,761 INFO L226 Difference]: Without dead ends: 13812 [2022-11-21 16:24:27,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:24:27,819 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 763 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 703 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 5501 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:27,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 5501 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2424 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-21 16:24:27,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13812 states. [2022-11-21 16:24:28,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13812 to 12425. [2022-11-21 16:24:28,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12425 states, 9088 states have (on average 1.345400528169014) internal successors, (12227), 9403 states have internal predecessors, (12227), 2520 states have call successors, (2520), 623 states have call predecessors, (2520), 816 states have return successors, (3671), 2498 states have call predecessors, (3671), 2517 states have call successors, (3671) [2022-11-21 16:24:28,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12425 states to 12425 states and 18418 transitions. [2022-11-21 16:24:28,967 INFO L78 Accepts]: Start accepts. Automaton has 12425 states and 18418 transitions. Word has length 124 [2022-11-21 16:24:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:28,968 INFO L495 AbstractCegarLoop]: Abstraction has 12425 states and 18418 transitions. [2022-11-21 16:24:28,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:24:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 12425 states and 18418 transitions. [2022-11-21 16:24:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-21 16:24:28,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:28,979 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:28,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:24:28,980 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:28,980 INFO L85 PathProgramCache]: Analyzing trace with hash 702147405, now seen corresponding path program 1 times [2022-11-21 16:24:28,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:28,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907739838] [2022-11-21 16:24:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:28,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:24:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:24:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:24:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:24:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:24:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:24:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:24:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:24:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:24:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,734 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-21 16:24:29,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:29,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907739838] [2022-11-21 16:24:29,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907739838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:29,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:29,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:24:29,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288868807] [2022-11-21 16:24:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:29,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:24:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:24:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:24:29,737 INFO L87 Difference]: Start difference. First operand 12425 states and 18418 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:24:32,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:34,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:36,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:42,461 INFO L93 Difference]: Finished difference Result 26216 states and 39014 transitions. [2022-11-21 16:24:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:24:42,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2022-11-21 16:24:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:42,542 INFO L225 Difference]: With dead ends: 26216 [2022-11-21 16:24:42,543 INFO L226 Difference]: Without dead ends: 13794 [2022-11-21 16:24:42,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:24:42,586 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 689 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 2372 mSolverCounterSat, 684 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 5278 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 2372 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:42,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 5278 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 2372 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-21 16:24:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13794 states. [2022-11-21 16:24:43,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13794 to 12434. [2022-11-21 16:24:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12434 states, 9097 states have (on average 1.3450588105969001) internal successors, (12236), 9412 states have internal predecessors, (12236), 2520 states have call successors, (2520), 623 states have call predecessors, (2520), 816 states have return successors, (3671), 2498 states have call predecessors, (3671), 2517 states have call successors, (3671) [2022-11-21 16:24:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12434 states to 12434 states and 18427 transitions. [2022-11-21 16:24:43,824 INFO L78 Accepts]: Start accepts. Automaton has 12434 states and 18427 transitions. Word has length 130 [2022-11-21 16:24:43,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:43,825 INFO L495 AbstractCegarLoop]: Abstraction has 12434 states and 18427 transitions. [2022-11-21 16:24:43,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:24:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 12434 states and 18427 transitions. [2022-11-21 16:24:43,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-21 16:24:43,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:43,837 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:43,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:24:43,838 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:43,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:43,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1613372360, now seen corresponding path program 1 times [2022-11-21 16:24:43,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:43,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621946829] [2022-11-21 16:24:43,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:43,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:24:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:24:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:24:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:24:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:24:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:24:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:24:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:24:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:24:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-21 16:24:44,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:44,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621946829] [2022-11-21 16:24:44,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621946829] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:44,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649142928] [2022-11-21 16:24:44,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:44,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:44,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:44,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:45,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:24:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:45,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2201 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-21 16:24:45,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-21 16:24:46,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:24:46,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649142928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:46,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:24:46,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-21 16:24:46,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522245337] [2022-11-21 16:24:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:46,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:24:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:46,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:24:46,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:24:46,042 INFO L87 Difference]: Start difference. First operand 12434 states and 18427 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:24:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:46,981 INFO L93 Difference]: Finished difference Result 20268 states and 29941 transitions. [2022-11-21 16:24:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:24:46,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 131 [2022-11-21 16:24:46,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:47,022 INFO L225 Difference]: With dead ends: 20268 [2022-11-21 16:24:47,022 INFO L226 Difference]: Without dead ends: 7847 [2022-11-21 16:24:47,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:24:47,058 INFO L413 NwaCegarLoop]: 1191 mSDtfsCounter, 38 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4755 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:47,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4755 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:24:47,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7847 states. [2022-11-21 16:24:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7847 to 7620. [2022-11-21 16:24:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7620 states, 5579 states have (on average 1.3403835812869689) internal successors, (7478), 5773 states have internal predecessors, (7478), 1533 states have call successors, (1533), 397 states have call predecessors, (1533), 507 states have return successors, (2172), 1510 states have call predecessors, (2172), 1530 states have call successors, (2172) [2022-11-21 16:24:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7620 states to 7620 states and 11183 transitions. [2022-11-21 16:24:47,643 INFO L78 Accepts]: Start accepts. Automaton has 7620 states and 11183 transitions. Word has length 131 [2022-11-21 16:24:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:47,643 INFO L495 AbstractCegarLoop]: Abstraction has 7620 states and 11183 transitions. [2022-11-21 16:24:47,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:24:47,644 INFO L276 IsEmpty]: Start isEmpty. Operand 7620 states and 11183 transitions. [2022-11-21 16:24:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-21 16:24:47,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:47,658 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:47,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-21 16:24:47,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:47,871 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:47,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:47,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2080933725, now seen corresponding path program 1 times [2022-11-21 16:24:47,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:47,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745223369] [2022-11-21 16:24:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:47,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:24:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:48,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:24:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:24:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:24:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:24:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:24:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:24:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 16:24:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:24:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:24:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-21 16:24:49,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:49,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745223369] [2022-11-21 16:24:49,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745223369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:49,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:49,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:24:49,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189639969] [2022-11-21 16:24:49,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:49,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:24:49,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:24:49,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:24:49,219 INFO L87 Difference]: Start difference. First operand 7620 states and 11183 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-21 16:24:51,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:53,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:24:59,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:59,460 INFO L93 Difference]: Finished difference Result 14924 states and 22049 transitions. [2022-11-21 16:24:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:24:59,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 137 [2022-11-21 16:24:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:59,519 INFO L225 Difference]: With dead ends: 14924 [2022-11-21 16:24:59,519 INFO L226 Difference]: Without dead ends: 8536 [2022-11-21 16:24:59,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:24:59,549 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 1358 mSDsluCounter, 5634 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 934 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 3638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:59,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 6911 Invalid, 3638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [934 Valid, 2702 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-11-21 16:24:59,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8536 states. [2022-11-21 16:25:00,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8536 to 7620. [2022-11-21 16:25:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7620 states, 5579 states have (on average 1.3396666069188026) internal successors, (7474), 5773 states have internal predecessors, (7474), 1533 states have call successors, (1533), 397 states have call predecessors, (1533), 507 states have return successors, (2172), 1510 states have call predecessors, (2172), 1530 states have call successors, (2172) [2022-11-21 16:25:00,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7620 states to 7620 states and 11179 transitions. [2022-11-21 16:25:00,174 INFO L78 Accepts]: Start accepts. Automaton has 7620 states and 11179 transitions. Word has length 137 [2022-11-21 16:25:00,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:00,175 INFO L495 AbstractCegarLoop]: Abstraction has 7620 states and 11179 transitions. [2022-11-21 16:25:00,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-21 16:25:00,175 INFO L276 IsEmpty]: Start isEmpty. Operand 7620 states and 11179 transitions. [2022-11-21 16:25:00,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-21 16:25:00,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:00,186 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:00,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:25:00,186 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:25:00,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:00,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1241900063, now seen corresponding path program 1 times [2022-11-21 16:25:00,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:00,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494514596] [2022-11-21 16:25:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:00,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:00,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:25:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:25:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:25:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:25:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:25:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:25:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:25:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:25:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 16:25:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:25:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:25:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:25:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-21 16:25:01,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:01,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494514596] [2022-11-21 16:25:01,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494514596] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:25:01,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452306558] [2022-11-21 16:25:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:01,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:25:01,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:25:01,243 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:25:01,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:25:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:03,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-21 16:25:03,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:25:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-21 16:25:04,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:25:04,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452306558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:04,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:25:04,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 19 [2022-11-21 16:25:04,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584033754] [2022-11-21 16:25:04,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:04,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:25:04,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:04,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:25:04,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:25:04,314 INFO L87 Difference]: Start difference. First operand 7620 states and 11179 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-21 16:25:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:11,887 INFO L93 Difference]: Finished difference Result 20238 states and 30254 transitions. [2022-11-21 16:25:11,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 16:25:11,887 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 137 [2022-11-21 16:25:11,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:11,958 INFO L225 Difference]: With dead ends: 20238 [2022-11-21 16:25:11,959 INFO L226 Difference]: Without dead ends: 13760 [2022-11-21 16:25:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=1052, Unknown=0, NotChecked=0, Total=1190 [2022-11-21 16:25:11,989 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 4496 mSDsluCounter, 12774 mSDsCounter, 0 mSdLazyCounter, 4350 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 14637 SdHoareTripleChecker+Invalid, 4943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 4350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:11,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4582 Valid, 14637 Invalid, 4943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [593 Valid, 4350 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-21 16:25:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13760 states. [2022-11-21 16:25:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13760 to 10587. [2022-11-21 16:25:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10587 states, 7759 states have (on average 1.3410233277484211) internal successors, (10405), 8020 states have internal predecessors, (10405), 2129 states have call successors, (2129), 557 states have call predecessors, (2129), 698 states have return successors, (2911), 2094 states have call predecessors, (2911), 2126 states have call successors, (2911) [2022-11-21 16:25:13,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10587 states to 10587 states and 15445 transitions. [2022-11-21 16:25:13,017 INFO L78 Accepts]: Start accepts. Automaton has 10587 states and 15445 transitions. Word has length 137 [2022-11-21 16:25:13,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:13,018 INFO L495 AbstractCegarLoop]: Abstraction has 10587 states and 15445 transitions. [2022-11-21 16:25:13,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-21 16:25:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 10587 states and 15445 transitions. [2022-11-21 16:25:13,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-21 16:25:13,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:13,029 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:13,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:25:13,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:25:13,248 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:25:13,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:13,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1237780059, now seen corresponding path program 1 times [2022-11-21 16:25:13,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:13,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732282723] [2022-11-21 16:25:13,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:13,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:25:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:25:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:25:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:25:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:25:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:25:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:25:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:25:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:25:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:25:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 16:25:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 16:25:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-21 16:25:13,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:13,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732282723] [2022-11-21 16:25:13,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732282723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:13,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:13,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:25:13,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308425830] [2022-11-21 16:25:13,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:13,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:25:13,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:13,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:25:13,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:25:13,662 INFO L87 Difference]: Start difference. First operand 10587 states and 15445 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:25:15,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:17,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:19,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:22,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:24,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:26,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:37,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:37,033 INFO L93 Difference]: Finished difference Result 31922 states and 48513 transitions. [2022-11-21 16:25:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 16:25:37,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-11-21 16:25:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:37,133 INFO L225 Difference]: With dead ends: 31922 [2022-11-21 16:25:37,134 INFO L226 Difference]: Without dead ends: 20186 [2022-11-21 16:25:37,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:25:37,174 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 2552 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 1684 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 5311 SdHoareTripleChecker+Invalid, 4973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1684 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:37,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 5311 Invalid, 4973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1684 Valid, 3283 Invalid, 6 Unknown, 0 Unchecked, 21.1s Time] [2022-11-21 16:25:37,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20186 states. [2022-11-21 16:25:38,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20186 to 16255. [2022-11-21 16:25:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16255 states, 11834 states have (on average 1.337502112557039) internal successors, (15828), 12296 states have internal predecessors, (15828), 3194 states have call successors, (3194), 816 states have call predecessors, (3194), 1226 states have return successors, (5648), 3248 states have call predecessors, (5648), 3191 states have call successors, (5648) [2022-11-21 16:25:38,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16255 states to 16255 states and 24670 transitions. [2022-11-21 16:25:38,685 INFO L78 Accepts]: Start accepts. Automaton has 16255 states and 24670 transitions. Word has length 135 [2022-11-21 16:25:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:38,686 INFO L495 AbstractCegarLoop]: Abstraction has 16255 states and 24670 transitions. [2022-11-21 16:25:38,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:25:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 16255 states and 24670 transitions. [2022-11-21 16:25:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-21 16:25:38,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:38,701 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:38,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:25:38,702 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:25:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:38,702 INFO L85 PathProgramCache]: Analyzing trace with hash 732056423, now seen corresponding path program 1 times [2022-11-21 16:25:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:38,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541710647] [2022-11-21 16:25:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:38,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:25:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:25:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:25:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:25:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:25:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:25:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:25:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:25:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 16:25:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:25:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:25:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-21 16:25:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:25:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:25:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-21 16:25:39,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:39,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541710647] [2022-11-21 16:25:39,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541710647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:39,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:39,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:25:39,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567209336] [2022-11-21 16:25:39,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:39,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:25:39,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:39,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:25:39,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:25:39,236 INFO L87 Difference]: Start difference. First operand 16255 states and 24670 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:25:41,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:43,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:45,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:47,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:51,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:53,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:55,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:25:57,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:26:05,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:05,710 INFO L93 Difference]: Finished difference Result 41522 states and 64169 transitions. [2022-11-21 16:26:05,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:26:05,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 158 [2022-11-21 16:26:05,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:05,822 INFO L225 Difference]: With dead ends: 41522 [2022-11-21 16:26:05,822 INFO L226 Difference]: Without dead ends: 25309 [2022-11-21 16:26:05,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:26:05,879 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 1781 mSDsluCounter, 6042 mSDsCounter, 0 mSdLazyCounter, 3214 mSolverCounterSat, 858 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 7677 SdHoareTripleChecker+Invalid, 4080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 3214 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:05,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 7677 Invalid, 4080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [858 Valid, 3214 Invalid, 8 Unknown, 0 Unchecked, 24.2s Time] [2022-11-21 16:26:05,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25309 states. [2022-11-21 16:26:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25309 to 16227. [2022-11-21 16:26:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16227 states, 11814 states have (on average 1.3367191467750128) internal successors, (15792), 12276 states have internal predecessors, (15792), 3186 states have call successors, (3186), 816 states have call predecessors, (3186), 1226 states have return successors, (5632), 3240 states have call predecessors, (5632), 3183 states have call successors, (5632) [2022-11-21 16:26:07,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16227 states to 16227 states and 24610 transitions. [2022-11-21 16:26:07,492 INFO L78 Accepts]: Start accepts. Automaton has 16227 states and 24610 transitions. Word has length 158 [2022-11-21 16:26:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:07,492 INFO L495 AbstractCegarLoop]: Abstraction has 16227 states and 24610 transitions. [2022-11-21 16:26:07,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:26:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 16227 states and 24610 transitions. [2022-11-21 16:26:07,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-21 16:26:07,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:07,506 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:07,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:26:07,507 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:26:07,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:07,507 INFO L85 PathProgramCache]: Analyzing trace with hash 453916825, now seen corresponding path program 1 times [2022-11-21 16:26:07,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:26:07,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571902711] [2022-11-21 16:26:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:07,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:26:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:26:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:26:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:26:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:26:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:26:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:26:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:26:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:26:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 16:26:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:26:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:26:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:26:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:26:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:08,543 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-21 16:26:08,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:26:08,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571902711] [2022-11-21 16:26:08,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571902711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:26:08,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963997640] [2022-11-21 16:26:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:08,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:26:08,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:26:08,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:26:08,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:26:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:10,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2393 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:26:10,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:10,857 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-21 16:26:10,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:26:11,113 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-21 16:26:11,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963997640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:26:11,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:26:11,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15 [2022-11-21 16:26:11,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305134267] [2022-11-21 16:26:11,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:26:11,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:26:11,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:26:11,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:26:11,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:26:11,116 INFO L87 Difference]: Start difference. First operand 16227 states and 24610 transitions. Second operand has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 10 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-21 16:26:13,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:26:15,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:26:17,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:26:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:26,844 INFO L93 Difference]: Finished difference Result 34935 states and 53127 transitions. [2022-11-21 16:26:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:26:26,845 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 10 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 153 [2022-11-21 16:26:26,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:26,928 INFO L225 Difference]: With dead ends: 34935 [2022-11-21 16:26:26,928 INFO L226 Difference]: Without dead ends: 18706 [2022-11-21 16:26:26,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 325 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2022-11-21 16:26:26,989 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 963 mSDsluCounter, 5342 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 926 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 6369 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:26,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 6369 Invalid, 3735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [926 Valid, 2806 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2022-11-21 16:26:27,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18706 states. [2022-11-21 16:26:28,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18706 to 16242. [2022-11-21 16:26:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16242 states, 11829 states have (on average 1.3362921633274156) internal successors, (15807), 12291 states have internal predecessors, (15807), 3186 states have call successors, (3186), 816 states have call predecessors, (3186), 1226 states have return successors, (5632), 3240 states have call predecessors, (5632), 3183 states have call successors, (5632) [2022-11-21 16:26:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16242 states to 16242 states and 24625 transitions. [2022-11-21 16:26:28,333 INFO L78 Accepts]: Start accepts. Automaton has 16242 states and 24625 transitions. Word has length 153 [2022-11-21 16:26:28,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:28,333 INFO L495 AbstractCegarLoop]: Abstraction has 16242 states and 24625 transitions. [2022-11-21 16:26:28,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 10 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-21 16:26:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 16242 states and 24625 transitions. [2022-11-21 16:26:28,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-21 16:26:28,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:28,346 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:28,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:26:28,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 16:26:28,563 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:26:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:28,563 INFO L85 PathProgramCache]: Analyzing trace with hash 686660894, now seen corresponding path program 2 times [2022-11-21 16:26:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:26:28,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768859966] [2022-11-21 16:26:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:28,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:26:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:26:28,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:26:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:26:29,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:26:29,561 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:26:29,563 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:26:29,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:26:29,569 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:29,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:26:29,632 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-21 16:26:29,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:26:29 BoogieIcfgContainer [2022-11-21 16:26:29,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:26:29,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:26:29,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:26:29,893 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:26:29,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:22:35" (3/4) ... [2022-11-21 16:26:29,897 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:26:29,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:26:29,898 INFO L158 Benchmark]: Toolchain (without parser) took 243636.29ms. Allocated memory was 182.5MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 129.3MB in the beginning and 441.8MB in the end (delta: -312.5MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2022-11-21 16:26:29,898 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:26:29,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2470.92ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 114.6MB in the end (delta: 14.7MB). Peak memory consumption was 91.5MB. Max. memory is 16.1GB. [2022-11-21 16:26:29,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 206.06ms. Allocated memory is still 182.5MB. Free memory was 114.6MB in the beginning and 96.8MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:26:29,904 INFO L158 Benchmark]: Boogie Preprocessor took 168.21ms. Allocated memory is still 182.5MB. Free memory was 96.8MB in the beginning and 77.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:26:29,906 INFO L158 Benchmark]: RCFGBuilder took 6434.95ms. Allocated memory was 182.5MB in the beginning and 333.4MB in the end (delta: 151.0MB). Free memory was 77.0MB in the beginning and 245.0MB in the end (delta: -168.1MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2022-11-21 16:26:29,908 INFO L158 Benchmark]: TraceAbstraction took 234341.93ms. Allocated memory was 333.4MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 244.1MB in the beginning and 442.8MB in the end (delta: -198.8MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2022-11-21 16:26:29,908 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 2.1GB. Free memory was 442.8MB in the beginning and 441.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:26:29,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2470.92ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 114.6MB in the end (delta: 14.7MB). Peak memory consumption was 91.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 206.06ms. Allocated memory is still 182.5MB. Free memory was 114.6MB in the beginning and 96.8MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 168.21ms. Allocated memory is still 182.5MB. Free memory was 96.8MB in the beginning and 77.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * RCFGBuilder took 6434.95ms. Allocated memory was 182.5MB in the beginning and 333.4MB in the end (delta: 151.0MB). Free memory was 77.0MB in the beginning and 245.0MB in the end (delta: -168.1MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * TraceAbstraction took 234341.93ms. Allocated memory was 333.4MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 244.1MB in the beginning and 442.8MB in the end (delta: -198.8MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 2.1GB. Free memory was 442.8MB in the beginning and 441.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 7054]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 8531, overapproximation of bitwiseAnd at line 8537. Possible FailurePath: [L7077] int LDV_IN_INTERRUPT = 1; [L7078] struct usb_interface *mwifiex_usb_driver_group1 ; [L7079] int ldv_state_variable_2 ; [L7080] int ref_cnt ; [L7081] struct mwifiex_adapter *usb_ops_group0 ; [L7082] int ldv_state_variable_1 ; [L7083] int usb_counter ; [L7084] struct sk_buff *usb_ops_group1 ; [L7085] int ldv_state_variable_0 ; [L7166-L7168] static char const usbdriver_name[8U] = { 'u', 's', 'b', '8', '7', '9', '7', '\000'}; [L7170] static struct semaphore add_remove_card_sem ; [L7171] static struct usb_card_rec *usb_card ; [L7172-L7176] static struct usb_device_id mwifiex_usb_table[3U] = { {3U, 4742U, 8259U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {899U, 4742U, 8260U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 255U, 255U, 255U, (unsigned char)0, 0UL}}; [L7177] struct usb_device_id const __mod_usb_device_table ; [L8001-L8007] static struct usb_driver mwifiex_usb_driver = {(char const *)(& usbdriver_name), & mwifiex_usb_probe, & mwifiex_usb_disconnect, 0, & mwifiex_usb_suspend, & mwifiex_usb_resume, 0, 0, 0, (struct usb_device_id const *)(& mwifiex_usb_table), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, 1U, (unsigned char)0, (unsigned char)0}; [L8502-L8506] static struct mwifiex_if_ops usb_ops = {0, 0, 0, 0, & mwifiex_register_dev, & mwifiex_unregister_dev, 0, 0, 0, & mwifiex_usb_host_to_card, & mwifiex_pm_wakeup_card, & mwifiex_pm_wakeup_card_complete, 0, 0, & mwifiex_usb_cmd_event_complete, & mwifiex_usb_cmd_event_complete, & mwifiex_usb_data_complete, 0, & mwifiex_usb_dnld_fw, 0, 0}; [L8586] int ldv_retval_0 ; [L8587] int ldv_retval_4 ; [L8588] int ldv_retval_1 ; [L8592] int ldv_retval_3 ; [L8593] int ldv_retval_2 ; [L8989] int INTERF_STATE = 0; [L8990] int SERIAL_STATE = 0; [L8991] void *usb_intfdata = 0; [L8992] struct urb *usb_urb = 0; [L8993] struct usb_device *usb_dev = 0; [L8994] int dev_counter = 0; [L8995] int completeFnIntCounter = 0; [L8996] int completeFnBulkCounter = 0; [L8997] void (*completeFnInt)(struct urb * ) ; [L8998] void (*completeFnBulk)(struct urb * ) ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8617] u8 ldvarg1 ; [L8618] u8 tmp ; [L8619] struct mwifiex_tx_param *ldvarg0 ; [L8620] void *tmp___0 ; [L8621] struct mwifiex_fw_image *ldvarg2 ; [L8622] void *tmp___1 ; [L8623] struct usb_device_id *ldvarg4 ; [L8624] void *tmp___2 ; [L8625] pm_message_t ldvarg3 ; [L8626] int tmp___3 ; [L8627] int tmp___4 ; [L8628] int tmp___5 ; [L8629] int tmp___6 ; [L8631] tmp = __VERIFIER_nondet_u8() [L8632] ldvarg1 = tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8633] CALL, EXPR ldv_zalloc(4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=4, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=4, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8633] RET, EXPR ldv_zalloc(4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(4UL)={0:0}, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8633] tmp___0 = ldv_zalloc(4UL) [L8634] ldvarg0 = (struct mwifiex_tx_param *)tmp___0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8635] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8635] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1=59, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8635] tmp___1 = ldv_zalloc(32UL) [L8636] ldvarg2 = (struct mwifiex_fw_image *)tmp___1 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8637] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8637] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8637] tmp___2 = ldv_zalloc(32UL) [L8638] ldvarg4 = (struct usb_device_id *)tmp___2 [L8639] FCALL ldv_initialize() [L8640] FCALL memset((void *)(& ldvarg3), 0, 4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, memset((void *)(& ldvarg3), 0, 4UL)={169:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8641] ldv_state_variable_1 = 0 [L8642] ref_cnt = 0 [L8643] ldv_state_variable_0 = 1 [L8644] ldv_state_variable_2 = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8646] tmp___3 = __VERIFIER_nondet_int() [L8648] case 0: [L8722] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8723] COND TRUE ldv_state_variable_0 != 0 [L8724] tmp___5 = __VERIFIER_nondet_int() [L8726] case 0: [L8734] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8735] COND TRUE ldv_state_variable_0 == 1 [L8736] CALL, EXPR mwifiex_usb_init_module() [L8509] int ret ; [L8510] struct _ddebug descriptor ; [L8511] long tmp ; [L8512] struct _ddebug descriptor___0 ; [L8513] long tmp___0 ; [L8515] descriptor.modname = "mwifiex_usb" [L8516] descriptor.function = "mwifiex_usb_init_module" [L8517] descriptor.filename = "/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6606/dscv_tempdir/dscv/ri/144_2a/drivers/net/wireless/mwifiex/usb.o.c.prepared" [L8518] descriptor.format = "Marvell USB8797 Driver\n" [L8519] descriptor.lineno = 1030U [L8520] descriptor.flags = 0U [L8521] EXPR descriptor.flags VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor.flags=0, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8521] CALL, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7067] return (exp); VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, c=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, exp=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8521] RET, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor.flags=0, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=0, ldv__builtin_expect((long )descriptor.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8521] tmp = ldv__builtin_expect((long )descriptor.flags & 1L, 0L) [L8522] COND FALSE !(tmp != 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8526] CALL sema_init(& add_remove_card_sem, 1) [L6892] struct lock_class_key __key ; [L6893] struct semaphore __constr_expr_0 ; [L6895] __constr_expr_0.lock.raw_lock.ldv_2243.head_tail = 0U [L6896] __constr_expr_0.lock.magic = 3735899821U [L6897] __constr_expr_0.lock.owner_cpu = 4294967295U [L6898] __constr_expr_0.lock.owner = (void *)-1 [L6899] __constr_expr_0.lock.dep_map.key = 0 [L6900] __constr_expr_0.lock.dep_map.class_cache[0] = 0 [L6901] __constr_expr_0.lock.dep_map.class_cache[1] = 0 [L6902] __constr_expr_0.lock.dep_map.name = "(*sem).lock" [L6903] __constr_expr_0.lock.dep_map.cpu = 0 [L6904] __constr_expr_0.lock.dep_map.ip = 0UL [L6905] __constr_expr_0.count = (unsigned int )val [L6906] __constr_expr_0.wait_list.next = & sem->wait_list [L6907] __constr_expr_0.wait_list.prev = & sem->wait_list [L6908] *sem = __constr_expr_0 [L6909] FCALL lockdep_init_map(& sem->lock.dep_map, "semaphore->lock", & __key, 0) [L6910] return; [L6910] return; VAL [={0:0}, ={0:0}, \old(val)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, sem={161:0}, sem={161:0}, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, val=1] [L8526] RET sema_init(& add_remove_card_sem, 1) [L8527] CALL, EXPR ldv_usb_register_driver_22(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8961] ldv_func_ret_type ldv_func_res ; [L8962] int tmp ; [L8964] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L9357] return __VERIFIER_nondet_int(); [L8964] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8964] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8965] ldv_func_res = tmp [L8966] ldv_state_variable_2 = 1 [L8967] usb_counter = 0 [L8968] CALL ldv_usb_driver_2() [L8596] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8598] CALL, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=1520, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=1520, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8598] RET, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ldv_zalloc(1520UL)={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8598] tmp = ldv_zalloc(1520UL) [L8599] mwifiex_usb_driver_group1 = (struct usb_interface *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8968] RET ldv_usb_driver_2() [L8969] return (ldv_func_res); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={163:0}, ldv_func_arg1={163:0}, ldv_func_arg2={4294967312:4294967304}, ldv_func_arg2={4294967312:4294967304}, ldv_func_arg3={153:0}, ldv_func_arg3={153:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8527] RET, EXPR ldv_usb_register_driver_22(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8527] ret = ldv_usb_register_driver_22(& mwifiex_usb_driver, & __this_module, "mwifiex_usb") [L8528] COND FALSE !(ret != 0) [L8531] descriptor___0.modname = "mwifiex_usb" [L8532] descriptor___0.function = "mwifiex_usb_init_module" [L8533] descriptor___0.filename = "/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6606/dscv_tempdir/dscv/ri/144_2a/drivers/net/wireless/mwifiex/usb.o.c.prepared" [L8534] descriptor___0.format = "info: Driver registered successfully!\n" [L8535] descriptor___0.lineno = 1038U [L8536] descriptor___0.flags = 0U [L8537] EXPR descriptor___0.flags VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, descriptor___0.flags=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8537] CALL, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7067] return (exp); VAL [={0:0}, ={0:0}, \old(c)=0, \old(exp)=0, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, c=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, exp=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8537] RET, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, descriptor___0.flags=0, dev_counter=0, INTERF_STATE=0, ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8537] tmp___0 = ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) [L8538] COND FALSE !(tmp___0 != 0L) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, descriptor={165:0}, descriptor___0={166:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8543] return (ret); [L8543] return (ret); [L8543] return (ret); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=0, SERIAL_STATE=0, tmp=0, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8736] RET, EXPR mwifiex_usb_init_module() [L8736] ldv_retval_0 = mwifiex_usb_init_module() [L8737] COND TRUE ldv_retval_0 == 0 [L8738] ldv_state_variable_0 = 3 [L8739] ldv_state_variable_1 = 1 [L8740] CALL ldv_initialize_mwifiex_if_ops_1() [L8605] void *tmp ; [L8606] void *tmp___0 ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8608] CALL, EXPR ldv_zalloc(5920UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=5920, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=5920, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8608] RET, EXPR ldv_zalloc(5920UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(5920UL)={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8608] tmp = ldv_zalloc(5920UL) [L8609] usb_ops_group0 = (struct mwifiex_adapter *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8610] CALL, EXPR ldv_zalloc(240UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7019] void *p ; [L7020] void *tmp ; [L7021] int tmp___0 ; [L7023] tmp___0 = __VERIFIER_nondet_int() [L7024] COND TRUE tmp___0 != 0 [L7025] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=240, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=240, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8610] RET, EXPR ldv_zalloc(240UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(240UL)={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8610] tmp___0 = ldv_zalloc(240UL) [L8611] usb_ops_group1 = (struct sk_buff *)tmp___0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8740] RET ldv_initialize_mwifiex_if_ops_1() [L8743] COND FALSE !(ldv_retval_0 != 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8646] tmp___3 = __VERIFIER_nondet_int() [L8648] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8649] COND TRUE ldv_state_variable_1 != 0 [L8650] tmp___4 = __VERIFIER_nondet_int() [L8652] case 0: [L8659] case 1: [L8666] case 2: [L8673] case 3: [L8680] case 4: [L8687] case 5: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=5, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8688] COND TRUE ldv_state_variable_1 == 1 [L8689] CALL mwifiex_usb_dnld_fw(usb_ops_group0, ldvarg2) [L8435] int ret ; [L8436] struct usb_card_rec *card ; [L8438] EXPR adapter->card [L8438] card = (struct usb_card_rec *)adapter->card [L8439] EXPR card->usb_boot_state VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967306:-206}, card->usb_boot_state=171, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, fw={0:0}, fw={0:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8439] COND FALSE !((unsigned int )card->usb_boot_state == 1U) [L8451] CALL, EXPR mwifiex_usb_rx_init(adapter) [L8045] struct usb_card_rec *card ; [L8046] int i ; [L8047] int tmp ; [L8048] int tmp___0 ; [L8050] EXPR adapter->card [L8050] card = (struct usb_card_rec *)adapter->card [L8051] card->rx_cmd.adapter = adapter [L8052] EXPR card->rx_cmd_ep [L8052] card->rx_cmd.ep = card->rx_cmd_ep [L8053] CALL, EXPR ldv_usb_alloc_urb_17(0, 208U) [L8936] struct urb *tmp ; VAL [={0:0}, ={0:0}, \old(iso_packets)=0, \old(mem_flags)=208, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, iso_packets=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mem_flags=208, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L8938] CALL, EXPR ldv_alloc_urb() VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9021] struct urb *value ; [L9022] void *tmp ; [L9023] int tmp___0 ; VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9025] CALL, EXPR ldv_malloc(sizeof(struct urb)) VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7002] void *p ; [L7003] void *tmp ; [L7004] int tmp___0 ; [L7006] tmp___0 = __VERIFIER_nondet_int() [L7007] COND FALSE !(tmp___0 != 0) [L7010] tmp = malloc(size) [L7011] p = tmp VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, p={-18446744073709551617:0}, ref_cnt=0, SERIAL_STATE=0, size=184, tmp={-18446744073709551617:0}, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7012] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L6998] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7012] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, p={-18446744073709551617:0}, ref_cnt=0, SERIAL_STATE=0, size=184, tmp={-18446744073709551617:0}, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7013] return (p); VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, p={-18446744073709551617:0}, ref_cnt=0, SERIAL_STATE=0, size=184, tmp={-18446744073709551617:0}, tmp___0=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9025] RET, EXPR ldv_malloc(sizeof(struct urb)) VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct urb))={-18446744073709551617:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9025] tmp = ldv_malloc(sizeof(struct urb)) [L9026] value = tmp VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9027] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L7036] int tmp ; [L7038] tmp = __VERIFIER_nondet_int() [L7039] return (tmp); VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, \result=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}] [L9027] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_undef_int()=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9027] tmp___0 = ldv_undef_int() [L9028] COND TRUE \read(tmp___0) VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={0:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9029] COND TRUE (unsigned long )value != (unsigned long )((struct urb *)0) [L9030] usb_urb = value VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L9035] return (usb_urb); VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}, value={-18446744073709551617:0}] [L8938] RET, EXPR ldv_alloc_urb() VAL [={0:0}, ={0:0}, \old(iso_packets)=0, \old(mem_flags)=208, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, iso_packets=0, ldv_alloc_urb()={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mem_flags=208, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8938] tmp = ldv_alloc_urb() [L8939] return (tmp); VAL [={0:0}, ={0:0}, \old(iso_packets)=0, \old(mem_flags)=208, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, iso_packets=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mem_flags=208, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8053] RET, EXPR ldv_usb_alloc_urb_17(0, 208U) [L8053] card->rx_cmd.urb = ldv_usb_alloc_urb_17(0, 208U) [L8054] EXPR card->rx_cmd.urb VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967306:-206}, card->rx_cmd.urb={-18446744073709551617:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8054] COND FALSE !((unsigned long )card->rx_cmd.urb == (unsigned long )((struct urb *)0)) [L8059] CALL, EXPR dev_alloc_skb(2048U) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7104] struct sk_buff *tmp ; [L7106] CALL, EXPR netdev_alloc_skb((struct net_device *)0, length) [L7096] struct sk_buff *tmp ; [L7098] CALL, EXPR __netdev_alloc_skb(dev, length, 32U) [L9240] CALL, EXPR ldv_malloc(sizeof(struct sk_buff)) VAL [={0:0}, ={0:0}, \old(size)=253, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7002] void *p ; [L7003] void *tmp ; [L7004] int tmp___0 ; [L7006] tmp___0 = __VERIFIER_nondet_int() [L7007] COND TRUE tmp___0 != 0 [L7008] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=253, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, size=253, tmp___0=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9240] RET, EXPR ldv_malloc(sizeof(struct sk_buff)) VAL [={0:0}, ={0:0}, \old(arg1)=2048, \old(arg2)=32, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, arg0={0:0}, arg0={0:0}, arg1=2048, arg2=32, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct sk_buff))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9240] struct sk_buff *skb = ldv_malloc(sizeof(struct sk_buff)); [L9241] COND FALSE !(\read(*skb)) VAL [={0:0}, ={0:0}, \old(arg1)=2048, \old(arg2)=32, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, arg0={0:0}, arg0={0:0}, arg1=2048, arg2=32, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, skb={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9247] return skb; VAL [={0:0}, ={0:0}, \old(arg1)=2048, \old(arg2)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, arg0={0:0}, arg0={0:0}, arg1=2048, arg2=32, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, skb={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7098] RET, EXPR __netdev_alloc_skb(dev, length, 32U) [L7098] tmp = __netdev_alloc_skb(dev, length, 32U) [L7099] return (tmp); VAL [={0:0}, ={0:0}, \old(length)=2048, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:0}, dev={0:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7106] RET, EXPR netdev_alloc_skb((struct net_device *)0, length) [L7106] tmp = netdev_alloc_skb((struct net_device *)0, length) [L7107] return (tmp); VAL [={0:0}, ={0:0}, \old(length)=2048, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, length=2048, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8059] RET, EXPR dev_alloc_skb(2048U) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967306:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_alloc_skb(2048U)={0:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8059] card->rx_cmd.skb = dev_alloc_skb(2048U) [L8060] EXPR card->rx_cmd.skb VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967306:-206}, card->rx_cmd.skb={0:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8060] COND TRUE (unsigned long )card->rx_cmd.skb == (unsigned long )((struct sk_buff *)0) [L8061] adapter->dev [L8062] return (-12); VAL [={0:0}, ={0:0}, \result=-12, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967306:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8451] RET, EXPR mwifiex_usb_rx_init(adapter) [L8451] ret = mwifiex_usb_rx_init(adapter) [L8452] COND FALSE !(ret == 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967306:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, fw={0:0}, fw={0:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=-12, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8456] return (ret); VAL [={0:0}, ={0:0}, \result=-12, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, adapter={0:0}, adapter={0:0}, add_remove_card_sem={161:0}, card={4294967306:-206}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, fw={0:0}, fw={0:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, ret=-12, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8689] RET mwifiex_usb_dnld_fw(usb_ops_group0, ldvarg2) [L8690] ldv_state_variable_1 = 1 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=0, tmp___4=5, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8646] tmp___3 = __VERIFIER_nondet_int() [L8648] case 0: [L8722] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8723] COND TRUE ldv_state_variable_0 != 0 [L8724] tmp___5 = __VERIFIER_nondet_int() [L8726] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8727] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L8728] CALL mwifiex_usb_cleanup_module() [L8548] int tmp ; [L8549] struct mwifiex_adapter *adapter ; [L8550] int i ; [L8551] struct mwifiex_private *tmp___0 ; [L8553] CALL, EXPR down_interruptible(& add_remove_card_sem) [L9262] return __VERIFIER_nondet_int(); [L8553] RET, EXPR down_interruptible(& add_remove_card_sem) [L8553] tmp = down_interruptible(& add_remove_card_sem) [L8554] COND FALSE !(tmp == 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8558] COND FALSE !((unsigned long )usb_card != (unsigned long )((struct usb_card_rec *)0)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=1, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8582] CALL ldv_usb_deregister_23(& mwifiex_usb_driver) [L8975] FCALL usb_deregister(arg) [L8976] ldv_state_variable_2 = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, arg={163:0}, arg={163:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8582] RET ldv_usb_deregister_23(& mwifiex_usb_driver) [L8728] RET mwifiex_usb_cleanup_module() [L8729] ldv_state_variable_0 = 2 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1=59, ldvarg2={0:0}, ldvarg3={169:0}, ldvarg4={0:0}, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, tmp=59, tmp___0={0:0}, tmp___1={0:0}, tmp___2={0:0}, tmp___3=1, tmp___4=5, tmp___5=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L8830] CALL ldv_check_final_state() [L9208] COND FALSE !((unsigned long )usb_urb == (unsigned long )((struct urb *)0)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L9210] CALL ldv_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] [L7054] reach_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967312:4294967304}, add_remove_card_sem={161:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, mwifiex_usb_driver={163:0}, mwifiex_usb_driver_group1={0:0}, mwifiex_usb_table={162:0}, ref_cnt=0, SERIAL_STATE=0, usb_card={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_ops={164:0}, usb_ops_group0={0:0}, usb_ops_group1={0:0}, usb_urb={-18446744073709551617:0}, usbdriver_name={160:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 855 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 233.9s, OverallIterations: 17, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 199.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 mSolverCounterUnknown, 28230 SdHoareTripleChecker+Valid, 180.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26549 mSDsluCounter, 86093 SdHoareTripleChecker+Invalid, 171.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65846 mSDsCounter, 13099 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34799 IncrementalHoareTripleChecker+Invalid, 47942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13099 mSolverCounterUnsat, 20247 mSDtfsCounter, 34799 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1047 GetRequests, 864 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16255occurred in iteration=14, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 28627 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 2200 NumberOfCodeBlocks, 2200 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2177 ConstructedInterpolants, 0 QuantifiedInterpolants, 4571 SizeOfPredicates, 25 NumberOfNonLiveVariables, 6873 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 20 InterpolantComputations, 15 PerfectInterpolantSequences, 1035/1040 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 [2022-11-21 16:26:30,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:26:32,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:26:32,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:26:32,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:26:32,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:26:32,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:26:32,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:26:32,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:26:32,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:26:32,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:26:32,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:26:32,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:26:32,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:26:32,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:26:32,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:26:32,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:26:32,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:26:32,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:26:32,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:26:32,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:26:32,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:26:32,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:26:32,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:26:32,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:26:32,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:26:32,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:26:32,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:26:32,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:26:32,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:26:32,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:26:32,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:26:32,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:26:32,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:26:32,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:26:32,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:26:32,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:26:32,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:26:32,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:26:32,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:26:32,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:26:32,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:26:32,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 16:26:32,807 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:26:32,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:26:32,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:26:32,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:26:32,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:26:32,809 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:26:32,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:26:32,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:26:32,810 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:26:32,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:26:32,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:26:32,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:26:32,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:26:32,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:26:32,812 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:26:32,812 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:26:32,812 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:26:32,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:26:32,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:26:32,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:26:32,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:26:32,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:26:32,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:26:32,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:26:32,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:26:32,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:26:32,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:26:32,815 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:26:32,816 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:26:32,816 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:26:32,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:26:32,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:26:32,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:26:32,817 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_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f2fac8642c25f1335350a2814ff7cf3c4ea0fb7f4feaed63baec564397e8f24 [2022-11-21 16:26:33,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:26:33,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:26:33,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:26:33,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:26:33,277 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:26:33,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-11-21 16:26:36,468 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:26:37,099 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:26:37,099 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-11-21 16:26:37,150 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data/5412715c7/cc6b4fc82da7432596186c3994d94a58/FLAGe88a39c14 [2022-11-21 16:26:37,178 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/data/5412715c7/cc6b4fc82da7432596186c3994d94a58 [2022-11-21 16:26:37,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:26:37,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:26:37,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:26:37,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:26:37,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:26:37,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:37" (1/1) ... [2022-11-21 16:26:37,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437e0053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:37, skipping insertion in model container [2022-11-21 16:26:37,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:37" (1/1) ... [2022-11-21 16:26:37,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:26:37,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:26:38,496 WARN L237 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_41174cab-f88b-4519-9a93-68aa2a371b30/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-11-21 16:26:39,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:26:39,127 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 16:26:39,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:26:39,395 WARN L237 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_41174cab-f88b-4519-9a93-68aa2a371b30/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-11-21 16:26:39,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:26:39,598 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:26:39,825 WARN L237 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_41174cab-f88b-4519-9a93-68aa2a371b30/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[202214,202227] [2022-11-21 16:26:40,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:26:40,207 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:26:40,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40 WrapperNode [2022-11-21 16:26:40,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:26:40,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:26:40,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:26:40,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:26:40,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,389 INFO L138 Inliner]: procedures = 178, calls = 1186, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 2972 [2022-11-21 16:26:40,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:26:40,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:26:40,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:26:40,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:26:40,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:26:40,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:26:40,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:26:40,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:26:40,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (1/1) ... [2022-11-21 16:26:40,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:26:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:26:40,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:26:40,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:26:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-21 16:26:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-21 16:26:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unregister_dev [2022-11-21 16:26:40,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unregister_dev [2022-11-21 16:26:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2022-11-21 16:26:40,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2022-11-21 16:26:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-21 16:26:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-21 16:26:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-21 16:26:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-11-21 16:26:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-11-21 16:26:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-21 16:26:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 16:26:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 16:26:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-21 16:26:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:26:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-21 16:26:40,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-21 16:26:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:26:40,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:26:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-21 16:26:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-21 16:26:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-21 16:26:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-21 16:26:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-21 16:26:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-21 16:26:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 16:26:40,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 16:26:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2022-11-21 16:26:40,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2022-11-21 16:26:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-21 16:26:40,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-21 16:26:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:26:40,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:26:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-21 16:26:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-21 16:26:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-21 16:26:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-21 16:26:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-11-21 16:26:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-11-21 16:26:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2022-11-21 16:26:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2022-11-21 16:26:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:26:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:26:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:26:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:26:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_complete [2022-11-21 16:26:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_complete [2022-11-21 16:26:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-21 16:26:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-21 16:26:40,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-21 16:26:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-21 16:26:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 16:26:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-21 16:26:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-21 16:26:40,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-21 16:26:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:26:40,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:26:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 16:26:40,766 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 16:26:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 16:26:40,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 16:26:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:26:40,766 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:26:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:26:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-21 16:26:40,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-21 16:26:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-21 16:26:40,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-21 16:26:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:26:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-21 16:26:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-21 16:26:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 16:26:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 16:26:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:26:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:26:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-21 16:26:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-21 16:26:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:26:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:26:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-21 16:26:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2022-11-21 16:26:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2022-11-21 16:26:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2022-11-21 16:26:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2022-11-21 16:26:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:26:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-21 16:26:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-21 16:26:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-21 16:26:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-21 16:26:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-21 16:26:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-21 16:26:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-21 16:26:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:26:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 16:26:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:26:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-21 16:26:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:26:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-21 16:26:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-21 16:26:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_10 [2022-11-21 16:26:40,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_10 [2022-11-21 16:26:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-21 16:26:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-21 16:26:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-21 16:26:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-21 16:26:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-21 16:26:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2022-11-21 16:26:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2022-11-21 16:26:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-21 16:26:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-21 16:26:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-21 16:26:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-21 16:26:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-21 16:26:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 16:26:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 16:26:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:26:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:26:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-11-21 16:26:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-11-21 16:26:41,576 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:26:41,579 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:26:43,047 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:26:50,886 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-21 16:27:04,718 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:27:04,743 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:27:04,743 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:27:04,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:27:04 BoogieIcfgContainer [2022-11-21 16:27:04,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:27:04,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:27:04,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:27:04,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:27:04,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:26:37" (1/3) ... [2022-11-21 16:27:04,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bf3367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:27:04, skipping insertion in model container [2022-11-21 16:27:04,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:40" (2/3) ... [2022-11-21 16:27:04,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bf3367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:27:04, skipping insertion in model container [2022-11-21 16:27:04,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:27:04" (3/3) ... [2022-11-21 16:27:04,763 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2022-11-21 16:27:04,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:27:04,784 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:27:04,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:27:04,863 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73532049, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:27:04,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:27:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 853 states, 629 states have (on average 1.3847376788553258) internal successors, (871), 655 states have internal predecessors, (871), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) [2022-11-21 16:27:04,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-21 16:27:04,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:04,885 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:04,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2002313727, now seen corresponding path program 1 times [2022-11-21 16:27:04,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:04,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271445005] [2022-11-21 16:27:04,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:04,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:04,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:04,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:04,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:27:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:05,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:27:05,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:05,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:27:05,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:05,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:05,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271445005] [2022-11-21 16:27:05,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271445005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:05,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:05,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:27:05,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305413934] [2022-11-21 16:27:05,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:05,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:27:05,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:05,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:27:05,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:27:05,939 INFO L87 Difference]: Start difference. First operand has 853 states, 629 states have (on average 1.3847376788553258) internal successors, (871), 655 states have internal predecessors, (871), 180 states have call successors, (180), 44 states have call predecessors, (180), 42 states have return successors, (174), 166 states have call predecessors, (174), 174 states have call successors, (174) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:27:06,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:06,234 INFO L93 Difference]: Finished difference Result 1704 states and 2498 transitions. [2022-11-21 16:27:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:27:06,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2022-11-21 16:27:06,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:06,258 INFO L225 Difference]: With dead ends: 1704 [2022-11-21 16:27:06,258 INFO L226 Difference]: Without dead ends: 840 [2022-11-21 16:27:06,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:27:06,271 INFO L413 NwaCegarLoop]: 1214 mSDtfsCounter, 2 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:06,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3639 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:27:06,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-11-21 16:27:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2022-11-21 16:27:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 624 states have (on average 1.3717948717948718) internal successors, (856), 642 states have internal predecessors, (856), 174 states have call successors, (174), 42 states have call predecessors, (174), 41 states have return successors, (169), 161 states have call predecessors, (169), 169 states have call successors, (169) [2022-11-21 16:27:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1199 transitions. [2022-11-21 16:27:06,386 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1199 transitions. Word has length 44 [2022-11-21 16:27:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:06,387 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1199 transitions. [2022-11-21 16:27:06,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:27:06,388 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1199 transitions. [2022-11-21 16:27:06,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-21 16:27:06,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:06,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:06,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:06,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:06,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash 823276732, now seen corresponding path program 1 times [2022-11-21 16:27:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:06,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964991710] [2022-11-21 16:27:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:06,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:06,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:06,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:06,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 16:27:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:07,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:27:07,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:27:07,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:27:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:27:08,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:08,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964991710] [2022-11-21 16:27:08,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964991710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:27:08,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:27:08,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 16:27:08,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914455241] [2022-11-21 16:27:08,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:27:08,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:27:08,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:08,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:27:08,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:27:08,046 INFO L87 Difference]: Start difference. First operand 840 states and 1199 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-21 16:27:08,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:08,806 INFO L93 Difference]: Finished difference Result 1681 states and 2401 transitions. [2022-11-21 16:27:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:27:08,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 45 [2022-11-21 16:27:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:08,817 INFO L225 Difference]: With dead ends: 1681 [2022-11-21 16:27:08,818 INFO L226 Difference]: Without dead ends: 849 [2022-11-21 16:27:08,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:27:08,822 INFO L413 NwaCegarLoop]: 1196 mSDtfsCounter, 16 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4779 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:08,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4779 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:27:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-11-21 16:27:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2022-11-21 16:27:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 632 states have (on average 1.3718354430379747) internal successors, (867), 650 states have internal predecessors, (867), 174 states have call successors, (174), 43 states have call predecessors, (174), 42 states have return successors, (169), 161 states have call predecessors, (169), 169 states have call successors, (169) [2022-11-21 16:27:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1210 transitions. [2022-11-21 16:27:08,922 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1210 transitions. Word has length 45 [2022-11-21 16:27:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:08,925 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1210 transitions. [2022-11-21 16:27:08,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-21 16:27:08,925 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1210 transitions. [2022-11-21 16:27:08,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-21 16:27:08,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:08,937 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:08,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-21 16:27:09,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:09,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:09,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash -703302463, now seen corresponding path program 2 times [2022-11-21 16:27:09,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:09,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613886881] [2022-11-21 16:27:09,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:27:09,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:09,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:09,160 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:09,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 16:27:09,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:27:09,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:27:09,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:27:09,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:27:09,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:09,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:09,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613886881] [2022-11-21 16:27:09,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613886881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:09,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:09,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:27:09,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341243603] [2022-11-21 16:27:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:09,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:27:09,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:09,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:27:09,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:09,965 INFO L87 Difference]: Start difference. First operand 849 states and 1210 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:27:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:10,781 INFO L93 Difference]: Finished difference Result 2450 states and 3501 transitions. [2022-11-21 16:27:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:27:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2022-11-21 16:27:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:10,794 INFO L225 Difference]: With dead ends: 2450 [2022-11-21 16:27:10,794 INFO L226 Difference]: Without dead ends: 1620 [2022-11-21 16:27:10,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:10,799 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 1119 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:10,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 2547 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 16:27:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2022-11-21 16:27:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1620. [2022-11-21 16:27:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1204 states have (on average 1.3737541528239203) internal successors, (1654), 1236 states have internal predecessors, (1654), 332 states have call successors, (332), 84 states have call predecessors, (332), 83 states have return successors, (327), 311 states have call predecessors, (327), 327 states have call successors, (327) [2022-11-21 16:27:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2313 transitions. [2022-11-21 16:27:10,910 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2313 transitions. Word has length 48 [2022-11-21 16:27:10,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:10,911 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2313 transitions. [2022-11-21 16:27:10,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-21 16:27:10,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2313 transitions. [2022-11-21 16:27:10,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-21 16:27:10,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:10,914 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:10,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:11,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:11,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:11,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:11,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1457421532, now seen corresponding path program 1 times [2022-11-21 16:27:11,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:11,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534407050] [2022-11-21 16:27:11,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:11,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:11,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:11,137 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:11,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-21 16:27:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:12,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 16:27:12,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:27:12,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:12,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:12,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534407050] [2022-11-21 16:27:12,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534407050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:12,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:12,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:27:12,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40356277] [2022-11-21 16:27:12,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:12,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:27:12,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:12,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:27:12,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:27:12,501 INFO L87 Difference]: Start difference. First operand 1620 states and 2313 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-21 16:27:15,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:27:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:17,368 INFO L93 Difference]: Finished difference Result 3568 states and 5151 transitions. [2022-11-21 16:27:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:27:17,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2022-11-21 16:27:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:17,384 INFO L225 Difference]: With dead ends: 3568 [2022-11-21 16:27:17,384 INFO L226 Difference]: Without dead ends: 1967 [2022-11-21 16:27:17,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:27:17,394 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 451 mSDsluCounter, 6096 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 7750 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:17,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 7750 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-21 16:27:17,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2022-11-21 16:27:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1620. [2022-11-21 16:27:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1204 states have (on average 1.3729235880398671) internal successors, (1653), 1236 states have internal predecessors, (1653), 332 states have call successors, (332), 84 states have call predecessors, (332), 83 states have return successors, (327), 311 states have call predecessors, (327), 327 states have call successors, (327) [2022-11-21 16:27:17,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2312 transitions. [2022-11-21 16:27:17,496 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2312 transitions. Word has length 65 [2022-11-21 16:27:17,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:17,497 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2312 transitions. [2022-11-21 16:27:17,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-21 16:27:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2312 transitions. [2022-11-21 16:27:17,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-21 16:27:17,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:17,500 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:17,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:17,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:17,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:17,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1676276250, now seen corresponding path program 1 times [2022-11-21 16:27:17,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:17,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692582382] [2022-11-21 16:27:17,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:17,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:17,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:17,719 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:17,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-21 16:27:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:18,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:27:18,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:20,422 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-21 16:27:20,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:20,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:20,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692582382] [2022-11-21 16:27:20,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692582382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:20,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:20,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:27:20,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503858759] [2022-11-21 16:27:20,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:20,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:27:20,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:20,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:27:20,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:20,425 INFO L87 Difference]: Start difference. First operand 1620 states and 2312 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:20,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:20,834 INFO L93 Difference]: Finished difference Result 4821 states and 7020 transitions. [2022-11-21 16:27:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:27:20,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2022-11-21 16:27:20,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:20,857 INFO L225 Difference]: With dead ends: 4821 [2022-11-21 16:27:20,858 INFO L226 Difference]: Without dead ends: 3220 [2022-11-21 16:27:20,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:20,866 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 1166 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:20,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 2646 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:27:20,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2022-11-21 16:27:21,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3210. [2022-11-21 16:27:21,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2389 states have (on average 1.3721222268731688) internal successors, (3278), 2449 states have internal predecessors, (3278), 655 states have call successors, (655), 166 states have call predecessors, (655), 165 states have return successors, (703), 618 states have call predecessors, (703), 650 states have call successors, (703) [2022-11-21 16:27:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4636 transitions. [2022-11-21 16:27:21,087 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4636 transitions. Word has length 65 [2022-11-21 16:27:21,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:21,090 INFO L495 AbstractCegarLoop]: Abstraction has 3210 states and 4636 transitions. [2022-11-21 16:27:21,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4636 transitions. [2022-11-21 16:27:21,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-21 16:27:21,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:21,093 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:21,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:21,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:21,319 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:21,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:21,320 INFO L85 PathProgramCache]: Analyzing trace with hash 424589465, now seen corresponding path program 1 times [2022-11-21 16:27:21,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:21,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911876433] [2022-11-21 16:27:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:21,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:21,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:21,325 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:21,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-21 16:27:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:22,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:27:22,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-21 16:27:24,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:24,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:24,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911876433] [2022-11-21 16:27:24,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911876433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:24,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:24,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:27:24,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481405561] [2022-11-21 16:27:24,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:24,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:27:24,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:27:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:24,036 INFO L87 Difference]: Start difference. First operand 3210 states and 4636 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:24,694 INFO L93 Difference]: Finished difference Result 9583 states and 14156 transitions. [2022-11-21 16:27:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:27:24,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 66 [2022-11-21 16:27:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:24,747 INFO L225 Difference]: With dead ends: 9583 [2022-11-21 16:27:24,747 INFO L226 Difference]: Without dead ends: 6392 [2022-11-21 16:27:24,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:24,761 INFO L413 NwaCegarLoop]: 1380 mSDtfsCounter, 1156 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:24,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 2551 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:27:24,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6392 states. [2022-11-21 16:27:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6392 to 6383. [2022-11-21 16:27:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6383 states, 4752 states have (on average 1.3695286195286196) internal successors, (6508), 4868 states have internal predecessors, (6508), 1301 states have call successors, (1301), 330 states have call predecessors, (1301), 329 states have return successors, (1513), 1232 states have call predecessors, (1513), 1296 states have call successors, (1513) [2022-11-21 16:27:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6383 states to 6383 states and 9322 transitions. [2022-11-21 16:27:25,270 INFO L78 Accepts]: Start accepts. Automaton has 6383 states and 9322 transitions. Word has length 66 [2022-11-21 16:27:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:25,271 INFO L495 AbstractCegarLoop]: Abstraction has 6383 states and 9322 transitions. [2022-11-21 16:27:25,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6383 states and 9322 transitions. [2022-11-21 16:27:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-21 16:27:25,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:25,275 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:25,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:25,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:25,499 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:25,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:25,500 INFO L85 PathProgramCache]: Analyzing trace with hash 277009661, now seen corresponding path program 1 times [2022-11-21 16:27:25,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:25,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580089964] [2022-11-21 16:27:25,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:25,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:25,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:25,503 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:25,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-21 16:27:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:26,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:27:26,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-21 16:27:27,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:27,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:27,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580089964] [2022-11-21 16:27:27,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580089964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:27,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:27,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:27:27,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394855409] [2022-11-21 16:27:27,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:27,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:27:27,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:27,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:27:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:27,434 INFO L87 Difference]: Start difference. First operand 6383 states and 9322 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:27,910 INFO L93 Difference]: Finished difference Result 6390 states and 9328 transitions. [2022-11-21 16:27:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:27:27,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 67 [2022-11-21 16:27:27,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:27,948 INFO L225 Difference]: With dead ends: 6390 [2022-11-21 16:27:27,948 INFO L226 Difference]: Without dead ends: 6387 [2022-11-21 16:27:27,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:27,952 INFO L413 NwaCegarLoop]: 1382 mSDtfsCounter, 1153 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:27,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 2552 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:27:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2022-11-21 16:27:28,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 6384. [2022-11-21 16:27:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6384 states, 4753 states have (on average 1.3694508731327582) internal successors, (6509), 4869 states have internal predecessors, (6509), 1301 states have call successors, (1301), 330 states have call predecessors, (1301), 329 states have return successors, (1513), 1232 states have call predecessors, (1513), 1296 states have call successors, (1513) [2022-11-21 16:27:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6384 states to 6384 states and 9323 transitions. [2022-11-21 16:27:28,565 INFO L78 Accepts]: Start accepts. Automaton has 6384 states and 9323 transitions. Word has length 67 [2022-11-21 16:27:28,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:28,565 INFO L495 AbstractCegarLoop]: Abstraction has 6384 states and 9323 transitions. [2022-11-21 16:27:28,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 6384 states and 9323 transitions. [2022-11-21 16:27:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-21 16:27:28,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:28,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:28,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:28,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:28,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:28,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:28,791 INFO L85 PathProgramCache]: Analyzing trace with hash -2992100, now seen corresponding path program 1 times [2022-11-21 16:27:28,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:28,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262670641] [2022-11-21 16:27:28,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:28,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:28,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:28,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-21 16:27:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:27:30,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:30,709 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-21 16:27:30,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:30,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:30,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262670641] [2022-11-21 16:27:30,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262670641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:30,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:30,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:27:30,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110479703] [2022-11-21 16:27:30,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:30,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:27:30,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:30,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:27:30,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:30,713 INFO L87 Difference]: Start difference. First operand 6384 states and 9323 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:31,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:31,158 INFO L93 Difference]: Finished difference Result 6386 states and 9324 transitions. [2022-11-21 16:27:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:27:31,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 68 [2022-11-21 16:27:31,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:31,223 INFO L225 Difference]: With dead ends: 6386 [2022-11-21 16:27:31,224 INFO L226 Difference]: Without dead ends: 6383 [2022-11-21 16:27:31,229 INFO L412 NwaCegarLoop]: 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 [2022-11-21 16:27:31,230 INFO L413 NwaCegarLoop]: 1194 mSDtfsCounter, 1142 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:31,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:27:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6383 states. [2022-11-21 16:27:31,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6383 to 6383. [2022-11-21 16:27:31,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6383 states, 4753 states have (on average 1.3692404796970334) internal successors, (6508), 4868 states have internal predecessors, (6508), 1300 states have call successors, (1300), 330 states have call predecessors, (1300), 329 states have return successors, (1513), 1232 states have call predecessors, (1513), 1296 states have call successors, (1513) [2022-11-21 16:27:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6383 states to 6383 states and 9321 transitions. [2022-11-21 16:27:31,851 INFO L78 Accepts]: Start accepts. Automaton has 6383 states and 9321 transitions. Word has length 68 [2022-11-21 16:27:31,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:31,853 INFO L495 AbstractCegarLoop]: Abstraction has 6383 states and 9321 transitions. [2022-11-21 16:27:31,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:31,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6383 states and 9321 transitions. [2022-11-21 16:27:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-21 16:27:31,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:31,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:31,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:32,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:32,071 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:32,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash -93107232, now seen corresponding path program 1 times [2022-11-21 16:27:32,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:32,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108492478] [2022-11-21 16:27:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:32,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:32,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:32,074 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:32,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-21 16:27:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:33,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:27:33,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-21 16:27:34,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:34,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:34,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108492478] [2022-11-21 16:27:34,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108492478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:34,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:34,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:27:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312185636] [2022-11-21 16:27:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:34,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:27:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:34,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:27:34,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:34,032 INFO L87 Difference]: Start difference. First operand 6383 states and 9321 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:34,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:34,603 INFO L93 Difference]: Finished difference Result 6385 states and 9322 transitions. [2022-11-21 16:27:34,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:27:34,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 69 [2022-11-21 16:27:34,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:34,642 INFO L225 Difference]: With dead ends: 6385 [2022-11-21 16:27:34,642 INFO L226 Difference]: Without dead ends: 6353 [2022-11-21 16:27:34,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:34,651 INFO L413 NwaCegarLoop]: 1193 mSDtfsCounter, 1139 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:34,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:27:34,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2022-11-21 16:27:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 6353. [2022-11-21 16:27:35,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6353 states, 4726 states have (on average 1.369022429115531) internal successors, (6470), 4840 states have internal predecessors, (6470), 1297 states have call successors, (1297), 330 states have call predecessors, (1297), 329 states have return successors, (1508), 1230 states have call predecessors, (1508), 1294 states have call successors, (1508) [2022-11-21 16:27:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6353 states to 6353 states and 9275 transitions. [2022-11-21 16:27:35,310 INFO L78 Accepts]: Start accepts. Automaton has 6353 states and 9275 transitions. Word has length 69 [2022-11-21 16:27:35,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:35,311 INFO L495 AbstractCegarLoop]: Abstraction has 6353 states and 9275 transitions. [2022-11-21 16:27:35,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 16:27:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6353 states and 9275 transitions. [2022-11-21 16:27:35,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 16:27:35,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:35,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:35,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:35,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:35,543 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:35,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash 696725679, now seen corresponding path program 1 times [2022-11-21 16:27:35,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:35,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485518630] [2022-11-21 16:27:35,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:35,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:35,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:35,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:35,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-21 16:27:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:36,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:27:36,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:27:36,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:36,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:36,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485518630] [2022-11-21 16:27:36,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485518630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:36,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:36,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:27:36,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715100441] [2022-11-21 16:27:36,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:36,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:27:36,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:27:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:36,788 INFO L87 Difference]: Start difference. First operand 6353 states and 9275 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 16:27:38,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:38,850 INFO L93 Difference]: Finished difference Result 17330 states and 25121 transitions. [2022-11-21 16:27:38,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:27:38,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-11-21 16:27:38,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:38,922 INFO L225 Difference]: With dead ends: 17330 [2022-11-21 16:27:38,923 INFO L226 Difference]: Without dead ends: 10994 [2022-11-21 16:27:38,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:27:38,956 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 869 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:38,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 2743 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 16:27:38,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10994 states. [2022-11-21 16:27:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10994 to 10963. [2022-11-21 16:27:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10963 states, 8116 states have (on average 1.3591670773780187) internal successors, (11031), 8329 states have internal predecessors, (11031), 2224 states have call successors, (2224), 623 states have call predecessors, (2224), 622 states have return successors, (2573), 2098 states have call predecessors, (2573), 2221 states have call successors, (2573) [2022-11-21 16:27:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10963 states to 10963 states and 15828 transitions. [2022-11-21 16:27:40,037 INFO L78 Accepts]: Start accepts. Automaton has 10963 states and 15828 transitions. Word has length 102 [2022-11-21 16:27:40,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:40,038 INFO L495 AbstractCegarLoop]: Abstraction has 10963 states and 15828 transitions. [2022-11-21 16:27:40,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 16:27:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 10963 states and 15828 transitions. [2022-11-21 16:27:40,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-21 16:27:40,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:40,047 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:40,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:40,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:40,263 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:40,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1862390503, now seen corresponding path program 1 times [2022-11-21 16:27:40,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:40,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004882172] [2022-11-21 16:27:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:40,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:40,267 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:40,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-21 16:27:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:41,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:27:41,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-21 16:27:42,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:42,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:42,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004882172] [2022-11-21 16:27:42,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004882172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:42,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:42,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:27:42,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934984777] [2022-11-21 16:27:42,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:42,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:27:42,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:42,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:27:42,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:27:42,202 INFO L87 Difference]: Start difference. First operand 10963 states and 15828 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:27:44,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:27:45,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:45,113 INFO L93 Difference]: Finished difference Result 17838 states and 25660 transitions. [2022-11-21 16:27:45,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:27:45,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-11-21 16:27:45,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:45,148 INFO L225 Difference]: With dead ends: 17838 [2022-11-21 16:27:45,148 INFO L226 Difference]: Without dead ends: 6891 [2022-11-21 16:27:45,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:27:45,186 INFO L413 NwaCegarLoop]: 1191 mSDtfsCounter, 38 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4755 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:45,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4755 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 16:27:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6891 states. [2022-11-21 16:27:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6891 to 6775. [2022-11-21 16:27:45,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6775 states, 5016 states have (on average 1.3528708133971292) internal successors, (6786), 5151 states have internal predecessors, (6786), 1362 states have call successors, (1362), 397 states have call predecessors, (1362), 396 states have return successors, (1549), 1280 states have call predecessors, (1549), 1359 states have call successors, (1549) [2022-11-21 16:27:45,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6775 states to 6775 states and 9697 transitions. [2022-11-21 16:27:45,926 INFO L78 Accepts]: Start accepts. Automaton has 6775 states and 9697 transitions. Word has length 128 [2022-11-21 16:27:45,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:45,927 INFO L495 AbstractCegarLoop]: Abstraction has 6775 states and 9697 transitions. [2022-11-21 16:27:45,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:27:45,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6775 states and 9697 transitions. [2022-11-21 16:27:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-21 16:27:45,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:45,938 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:45,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:46,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:46,163 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:46,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:46,164 INFO L85 PathProgramCache]: Analyzing trace with hash -948611006, now seen corresponding path program 1 times [2022-11-21 16:27:46,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:46,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060277865] [2022-11-21 16:27:46,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:46,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:46,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:46,170 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:46,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-21 16:27:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:47,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 16:27:47,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-21 16:27:48,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:48,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:48,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060277865] [2022-11-21 16:27:48,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060277865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:48,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:48,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:27:48,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804381418] [2022-11-21 16:27:48,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:48,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:27:48,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:48,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:27:48,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:27:48,083 INFO L87 Difference]: Start difference. First operand 6775 states and 9697 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:27:52,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:27:54,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:54,856 INFO L93 Difference]: Finished difference Result 12440 states and 17831 transitions. [2022-11-21 16:27:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:27:54,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-11-21 16:27:54,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:54,888 INFO L225 Difference]: With dead ends: 12440 [2022-11-21 16:27:54,888 INFO L226 Difference]: Without dead ends: 6789 [2022-11-21 16:27:54,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:27:54,907 INFO L413 NwaCegarLoop]: 1441 mSDtfsCounter, 435 mSDsluCounter, 5219 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 6660 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:54,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 6660 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-21 16:27:54,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-11-21 16:27:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 6775. [2022-11-21 16:27:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6775 states, 5016 states have (on average 1.35207336523126) internal successors, (6782), 5151 states have internal predecessors, (6782), 1362 states have call successors, (1362), 397 states have call predecessors, (1362), 396 states have return successors, (1549), 1280 states have call predecessors, (1549), 1359 states have call successors, (1549) [2022-11-21 16:27:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6775 states to 6775 states and 9693 transitions. [2022-11-21 16:27:55,475 INFO L78 Accepts]: Start accepts. Automaton has 6775 states and 9693 transitions. Word has length 134 [2022-11-21 16:27:55,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:55,476 INFO L495 AbstractCegarLoop]: Abstraction has 6775 states and 9693 transitions. [2022-11-21 16:27:55,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:27:55,476 INFO L276 IsEmpty]: Start isEmpty. Operand 6775 states and 9693 transitions. [2022-11-21 16:27:55,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-21 16:27:55,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:55,482 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:55,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-21 16:27:55,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:55,683 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:55,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:55,683 INFO L85 PathProgramCache]: Analyzing trace with hash -871710208, now seen corresponding path program 1 times [2022-11-21 16:27:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:55,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753109681] [2022-11-21 16:27:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:55,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:55,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:55,687 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:55,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-21 16:27:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:57,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:27:57,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:27:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-21 16:27:57,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:27:57,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:27:57,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753109681] [2022-11-21 16:27:57,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753109681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:57,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:57,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:27:57,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17460415] [2022-11-21 16:27:57,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:57,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:27:57,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:27:57,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:27:57,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:27:57,693 INFO L87 Difference]: Start difference. First operand 6775 states and 9693 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:27:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:58,192 INFO L93 Difference]: Finished difference Result 12478 states and 17953 transitions. [2022-11-21 16:27:58,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:27:58,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 134 [2022-11-21 16:27:58,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:58,230 INFO L225 Difference]: With dead ends: 12478 [2022-11-21 16:27:58,231 INFO L226 Difference]: Without dead ends: 6827 [2022-11-21 16:27:58,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:27:58,251 INFO L413 NwaCegarLoop]: 1199 mSDtfsCounter, 4 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4775 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:58,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4775 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:27:58,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2022-11-21 16:27:58,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 6809. [2022-11-21 16:27:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6809 states, 5040 states have (on average 1.3511904761904763) internal successors, (6810), 5177 states have internal predecessors, (6810), 1366 states have call successors, (1366), 397 states have call predecessors, (1366), 402 states have return successors, (1589), 1288 states have call predecessors, (1589), 1363 states have call successors, (1589) [2022-11-21 16:27:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6809 states to 6809 states and 9765 transitions. [2022-11-21 16:27:58,881 INFO L78 Accepts]: Start accepts. Automaton has 6809 states and 9765 transitions. Word has length 134 [2022-11-21 16:27:58,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:58,882 INFO L495 AbstractCegarLoop]: Abstraction has 6809 states and 9765 transitions. [2022-11-21 16:27:58,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:27:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6809 states and 9765 transitions. [2022-11-21 16:27:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-21 16:27:58,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:58,890 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:58,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-21 16:27:59,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:59,116 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:59,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:59,116 INFO L85 PathProgramCache]: Analyzing trace with hash -411751834, now seen corresponding path program 1 times [2022-11-21 16:27:59,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:27:59,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192956498] [2022-11-21 16:27:59,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:59,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:27:59,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:27:59,118 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:27:59,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-21 16:28:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:00,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-21 16:28:00,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:28:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-21 16:28:01,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:28:01,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:28:01,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192956498] [2022-11-21 16:28:01,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192956498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:01,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:01,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 16:28:01,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780291314] [2022-11-21 16:28:01,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:01,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:28:01,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:28:01,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:28:01,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:28:01,999 INFO L87 Difference]: Start difference. First operand 6809 states and 9765 transitions. Second operand has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 10 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-21 16:28:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:28:15,545 INFO L93 Difference]: Finished difference Result 14837 states and 21719 transitions. [2022-11-21 16:28:15,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-21 16:28:15,547 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 10 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2022-11-21 16:28:15,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:28:15,591 INFO L225 Difference]: With dead ends: 14837 [2022-11-21 16:28:15,591 INFO L226 Difference]: Without dead ends: 9152 [2022-11-21 16:28:15,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2022-11-21 16:28:15,611 INFO L413 NwaCegarLoop]: 2424 mSDtfsCounter, 2566 mSDsluCounter, 25897 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 28321 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:28:15,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 28321 Invalid, 1319 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [206 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-21 16:28:15,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9152 states. [2022-11-21 16:28:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9152 to 6795. [2022-11-21 16:28:16,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6795 states, 5026 states have (on average 1.3507759649820932) internal successors, (6789), 5164 states have internal predecessors, (6789), 1366 states have call successors, (1366), 397 states have call predecessors, (1366), 402 states have return successors, (1589), 1287 states have call predecessors, (1589), 1363 states have call successors, (1589) [2022-11-21 16:28:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 9744 transitions. [2022-11-21 16:28:16,440 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 9744 transitions. Word has length 140 [2022-11-21 16:28:16,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:28:16,440 INFO L495 AbstractCegarLoop]: Abstraction has 6795 states and 9744 transitions. [2022-11-21 16:28:16,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 10 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-21 16:28:16,441 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 9744 transitions. [2022-11-21 16:28:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-21 16:28:16,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:28:16,448 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:28:16,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-21 16:28:16,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:28:16,672 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:28:16,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:16,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1095627296, now seen corresponding path program 1 times [2022-11-21 16:28:16,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:28:16,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107159844] [2022-11-21 16:28:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:16,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:28:16,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:28:16,676 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:28:16,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-21 16:28:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:18,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1643 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:28:18,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:28:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-21 16:28:18,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:28:18,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:28:18,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107159844] [2022-11-21 16:28:18,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107159844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:18,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:18,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:28:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098712140] [2022-11-21 16:28:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:18,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:28:18,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:28:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:28:18,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:28:18,195 INFO L87 Difference]: Start difference. First operand 6795 states and 9744 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:28:19,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:28:19,062 INFO L93 Difference]: Finished difference Result 16528 states and 23689 transitions. [2022-11-21 16:28:19,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:28:19,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-11-21 16:28:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:28:19,106 INFO L225 Difference]: With dead ends: 16528 [2022-11-21 16:28:19,106 INFO L226 Difference]: Without dead ends: 9375 [2022-11-21 16:28:19,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:28:19,128 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 894 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:28:19,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 2893 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:28:19,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9375 states. [2022-11-21 16:28:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9375 to 9258. [2022-11-21 16:28:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9258 states, 6876 states have (on average 1.3534031413612566) internal successors, (9306), 7071 states have internal predecessors, (9306), 1814 states have call successors, (1814), 556 states have call predecessors, (1814), 567 states have return successors, (2172), 1692 states have call predecessors, (2172), 1811 states have call successors, (2172) [2022-11-21 16:28:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9258 states to 9258 states and 13292 transitions. [2022-11-21 16:28:20,200 INFO L78 Accepts]: Start accepts. Automaton has 9258 states and 13292 transitions. Word has length 138 [2022-11-21 16:28:20,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:28:20,201 INFO L495 AbstractCegarLoop]: Abstraction has 9258 states and 13292 transitions. [2022-11-21 16:28:20,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:28:20,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9258 states and 13292 transitions. [2022-11-21 16:28:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-21 16:28:20,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:28:20,211 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:28:20,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-21 16:28:20,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:28:20,435 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:28:20,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:20,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2025189890, now seen corresponding path program 1 times [2022-11-21 16:28:20,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:28:20,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406700979] [2022-11-21 16:28:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:20,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:28:20,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:28:20,438 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:28:20,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-21 16:28:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:22,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:28:22,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:28:22,313 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-21 16:28:22,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:28:22,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:28:22,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406700979] [2022-11-21 16:28:22,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406700979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:22,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:28:22,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:28:22,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095328678] [2022-11-21 16:28:22,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:22,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:28:22,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:28:22,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:28:22,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:28:22,316 INFO L87 Difference]: Start difference. First operand 9258 states and 13292 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:28:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:28:24,226 INFO L93 Difference]: Finished difference Result 23905 states and 35192 transitions. [2022-11-21 16:28:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:28:24,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2022-11-21 16:28:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:28:24,281 INFO L225 Difference]: With dead ends: 23905 [2022-11-21 16:28:24,281 INFO L226 Difference]: Without dead ends: 14692 [2022-11-21 16:28:24,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:28:24,314 INFO L413 NwaCegarLoop]: 1790 mSDtfsCounter, 1099 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 4771 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:28:24,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 4771 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:28:24,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14692 states. [2022-11-21 16:28:25,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14692 to 9274. [2022-11-21 16:28:25,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9274 states, 6892 states have (on average 1.352582704585026) internal successors, (9322), 7087 states have internal predecessors, (9322), 1814 states have call successors, (1814), 556 states have call predecessors, (1814), 567 states have return successors, (2172), 1692 states have call predecessors, (2172), 1811 states have call successors, (2172) [2022-11-21 16:28:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9274 states to 9274 states and 13308 transitions. [2022-11-21 16:28:25,488 INFO L78 Accepts]: Start accepts. Automaton has 9274 states and 13308 transitions. Word has length 161 [2022-11-21 16:28:25,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:28:25,489 INFO L495 AbstractCegarLoop]: Abstraction has 9274 states and 13308 transitions. [2022-11-21 16:28:25,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:28:25,489 INFO L276 IsEmpty]: Start isEmpty. Operand 9274 states and 13308 transitions. [2022-11-21 16:28:25,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-21 16:28:25,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:28:25,497 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:28:25,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-21 16:28:25,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:28:25,719 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:28:25,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:28:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash 686660894, now seen corresponding path program 1 times [2022-11-21 16:28:25,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:28:25,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776879446] [2022-11-21 16:28:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:25,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:28:25,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:28:25,723 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:28:25,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-21 16:29:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:29:07,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:29:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:29:27,686 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 16:29:27,686 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:29:27,687 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:29:27,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-21 16:29:27,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:29:27,892 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:29:27,896 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:29:27,950 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-21 16:29:28,147 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Expected only CPrimitive but got *urb at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateBitvecLiteral(CACSL2BoogieBacktranslator.java:1212) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:1021) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramStateEntry(CACSL2BoogieBacktranslator.java:658) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramState(CACSL2BoogieBacktranslator.java:633) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.handleCASTFunctionCallExpression(CACSL2BoogieBacktranslator.java:490) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramExecution(CACSL2BoogieBacktranslator.java:267) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:217) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:582) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-21 16:29:28,158 INFO L158 Benchmark]: Toolchain (without parser) took 170971.47ms. Allocated memory was 92.3MB in the beginning and 2.0GB in the end (delta: 2.0GB). Free memory was 58.7MB in the beginning and 1.0GB in the end (delta: -948.0MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-21 16:29:28,158 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:29:28,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3019.14ms. Allocated memory was 92.3MB in the beginning and 159.4MB in the end (delta: 67.1MB). Free memory was 58.4MB in the beginning and 66.1MB in the end (delta: -7.7MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2022-11-21 16:29:28,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.27ms. Allocated memory is still 159.4MB. Free memory was 66.1MB in the beginning and 84.0MB in the end (delta: -17.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-21 16:29:28,162 INFO L158 Benchmark]: Boogie Preprocessor took 266.98ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 61.9MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 16:29:28,163 INFO L158 Benchmark]: RCFGBuilder took 24090.06ms. Allocated memory was 159.4MB in the beginning and 413.1MB in the end (delta: 253.8MB). Free memory was 61.9MB in the beginning and 286.7MB in the end (delta: -224.8MB). Peak memory consumption was 172.5MB. Max. memory is 16.1GB. [2022-11-21 16:29:28,163 INFO L158 Benchmark]: TraceAbstraction took 143405.86ms. Allocated memory was 413.1MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 285.6MB in the beginning and 1.0GB in the end (delta: -721.0MB). Peak memory consumption was 911.7MB. Max. memory is 16.1GB. [2022-11-21 16:29:28,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3019.14ms. Allocated memory was 92.3MB in the beginning and 159.4MB in the end (delta: 67.1MB). Free memory was 58.4MB in the beginning and 66.1MB in the end (delta: -7.7MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 180.27ms. Allocated memory is still 159.4MB. Free memory was 66.1MB in the beginning and 84.0MB in the end (delta: -17.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 266.98ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 61.9MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 24090.06ms. Allocated memory was 159.4MB in the beginning and 413.1MB in the end (delta: 253.8MB). Free memory was 61.9MB in the beginning and 286.7MB in the end (delta: -224.8MB). Peak memory consumption was 172.5MB. Max. memory is 16.1GB. * TraceAbstraction took 143405.86ms. Allocated memory was 413.1MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 285.6MB in the beginning and 1.0GB in the end (delta: -721.0MB). Peak memory consumption was 911.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * 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 - ExceptionOrErrorResult: AssertionError: Expected only CPrimitive but got *urb de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Expected only CPrimitive but got *urb: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:373) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-21 16:29:28,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41174cab-f88b-4519-9a93-68aa2a371b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Expected only CPrimitive but got *urb