./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--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa --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 be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:25:40,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:25:40,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:25:40,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:25:40,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:25:40,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:25:40,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:25:40,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:25:40,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:25:40,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:25:40,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:25:40,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:25:40,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:25:40,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:25:40,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:25:40,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:25:40,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:25:40,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:25:40,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:25:40,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:25:40,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:25:40,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:25:40,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:25:40,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:25:40,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:25:40,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:25:40,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:25:40,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:25:40,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:25:40,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:25:40,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:25:40,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:25:40,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:25:40,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:25:40,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:25:40,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:25:40,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:25:40,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:25:40,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:25:40,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:25:40,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:25:40,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 20:25:40,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:25:40,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:25:40,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:25:40,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:25:40,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:25:40,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:25:40,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:25:40,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:25:40,552 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:25:40,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:25:40,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:25:40,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:25:40,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:25:40,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:25:40,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:25:40,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:25:40,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:25:40,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:25:40,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:25:40,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:25:40,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:25:40,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:25:40,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:25:40,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:25:40,554 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_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2021-12-06 20:25:40,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:25:40,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:25:40,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:25:40,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:25:40,755 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:25:40,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2021-12-06 20:25:40,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/9627cdaf6/42f3d65955fb43d0835dbbf1c36fb508/FLAG07123405f [2021-12-06 20:25:41,369 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:25:41,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2021-12-06 20:25:41,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/9627cdaf6/42f3d65955fb43d0835dbbf1c36fb508/FLAG07123405f [2021-12-06 20:25:41,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/9627cdaf6/42f3d65955fb43d0835dbbf1c36fb508 [2021-12-06 20:25:41,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:25:41,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:25:41,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:25:41,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:25:41,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:25:41,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:25:41" (1/1) ... [2021-12-06 20:25:41,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71681704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:41, skipping insertion in model container [2021-12-06 20:25:41,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:25:41" (1/1) ... [2021-12-06 20:25:41,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:25:41,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:25:42,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2021-12-06 20:25:42,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:25:42,931 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:25:43,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2021-12-06 20:25:43,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:25:43,188 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:25:43,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43 WrapperNode [2021-12-06 20:25:43,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:25:43,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:25:43,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:25:43,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:25:43,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,320 INFO L137 Inliner]: procedures = 169, calls = 719, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 1996 [2021-12-06 20:25:43,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:25:43,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:25:43,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:25:43,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:25:43,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:25:43,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:25:43,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:25:43,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:25:43,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (1/1) ... [2021-12-06 20:25:43,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:25:43,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:43,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:43,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:25:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 20:25:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 20:25:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 20:25:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2021-12-06 20:25:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2021-12-06 20:25:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2021-12-06 20:25:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2021-12-06 20:25:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2021-12-06 20:25:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2021-12-06 20:25:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2021-12-06 20:25:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 20:25:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-06 20:25:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2021-12-06 20:25:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-06 20:25:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-06 20:25:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-06 20:25:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2021-12-06 20:25:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2021-12-06 20:25:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 20:25:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 20:25:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 20:25:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 20:25:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 20:25:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 20:25:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-06 20:25:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-06 20:25:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 20:25:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 20:25:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2021-12-06 20:25:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2021-12-06 20:25:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 20:25:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2021-12-06 20:25:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 20:25:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 20:25:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:25:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 20:25:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2021-12-06 20:25:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:25:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-06 20:25:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2021-12-06 20:25:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 20:25:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 20:25:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2021-12-06 20:25:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2021-12-06 20:25:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:25:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-06 20:25:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-06 20:25:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2021-12-06 20:25:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-06 20:25:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-06 20:25:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2021-12-06 20:25:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2021-12-06 20:25:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2021-12-06 20:25:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-06 20:25:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2021-12-06 20:25:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 20:25:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-06 20:25:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 20:25:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2021-12-06 20:25:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2021-12-06 20:25:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 20:25:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 20:25:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-06 20:25:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-06 20:25:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-06 20:25:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-06 20:25:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:25:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-06 20:25:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-06 20:25:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 20:25:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 20:25:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 20:25:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:25:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:25:43,785 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:25:43,787 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:25:43,953 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 20:25:44,404 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-06 20:25:46,302 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:25:46,313 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:25:46,314 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:25:46,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:25:46 BoogieIcfgContainer [2021-12-06 20:25:46,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:25:46,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:25:46,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:25:46,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:25:46,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:25:41" (1/3) ... [2021-12-06 20:25:46,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1ba7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:25:46, skipping insertion in model container [2021-12-06 20:25:46,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:43" (2/3) ... [2021-12-06 20:25:46,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1ba7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:25:46, skipping insertion in model container [2021-12-06 20:25:46,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:25:46" (3/3) ... [2021-12-06 20:25:46,322 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2021-12-06 20:25:46,326 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:25:46,326 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:25:46,364 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:25:46,368 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:25:46,369 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:25:46,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 658 states, 475 states have (on average 1.3368421052631578) internal successors, (635), 499 states have internal predecessors, (635), 135 states have call successors, (135), 48 states have call predecessors, (135), 46 states have return successors, (129), 124 states have call predecessors, (129), 129 states have call successors, (129) [2021-12-06 20:25:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 20:25:46,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:46,401 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 20:25:46,401 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:46,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:46,405 INFO L85 PathProgramCache]: Analyzing trace with hash -80698519, now seen corresponding path program 1 times [2021-12-06 20:25:46,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:46,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833340850] [2021-12-06 20:25:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:46,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:46,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:25:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:25:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 20:25:46,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:25:46,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833340850] [2021-12-06 20:25:46,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833340850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:46,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:46,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:25:46,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731196021] [2021-12-06 20:25:46,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:46,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:25:46,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:25:46,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:25:46,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:25:46,801 INFO L87 Difference]: Start difference. First operand has 658 states, 475 states have (on average 1.3368421052631578) internal successors, (635), 499 states have internal predecessors, (635), 135 states have call successors, (135), 48 states have call predecessors, (135), 46 states have return successors, (129), 124 states have call predecessors, (129), 129 states have call successors, (129) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:25:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:49,034 INFO L93 Difference]: Finished difference Result 2080 states and 2960 transitions. [2021-12-06 20:25:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:25:49,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-12-06 20:25:49,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:49,055 INFO L225 Difference]: With dead ends: 2080 [2021-12-06 20:25:49,055 INFO L226 Difference]: Without dead ends: 1403 [2021-12-06 20:25:49,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:25:49,064 INFO L933 BasicCegarLoop]: 955 mSDtfsCounter, 1256 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:49,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 2071 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 20:25:49,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2021-12-06 20:25:49,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1253. [2021-12-06 20:25:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 913 states have (on average 1.3198247535596934) internal successors, (1205), 941 states have internal predecessors, (1205), 249 states have call successors, (249), 91 states have call predecessors, (249), 90 states have return successors, (244), 234 states have call predecessors, (244), 244 states have call successors, (244) [2021-12-06 20:25:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1698 transitions. [2021-12-06 20:25:49,175 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1698 transitions. Word has length 28 [2021-12-06 20:25:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:49,176 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 1698 transitions. [2021-12-06 20:25:49,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:25:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1698 transitions. [2021-12-06 20:25:49,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 20:25:49,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:49,179 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:25:49,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:25:49,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash 366324340, now seen corresponding path program 1 times [2021-12-06 20:25:49,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:49,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10827796] [2021-12-06 20:25:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:49,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:25:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:25:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:25:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:25:49,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:25:49,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10827796] [2021-12-06 20:25:49,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10827796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:49,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:49,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:25:49,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091743681] [2021-12-06 20:25:49,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:49,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:25:49,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:25:49,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:25:49,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:25:49,349 INFO L87 Difference]: Start difference. First operand 1253 states and 1698 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:25:52,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:25:52,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:52,969 INFO L93 Difference]: Finished difference Result 4044 states and 5689 transitions. [2021-12-06 20:25:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:25:52,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-12-06 20:25:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:52,984 INFO L225 Difference]: With dead ends: 4044 [2021-12-06 20:25:52,984 INFO L226 Difference]: Without dead ends: 2798 [2021-12-06 20:25:52,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:25:52,989 INFO L933 BasicCegarLoop]: 1047 mSDtfsCounter, 1261 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 401 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:52,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 2200 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 614 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-06 20:25:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2021-12-06 20:25:53,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2592. [2021-12-06 20:25:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 1892 states have (on average 1.3202959830866807) internal successors, (2498), 1956 states have internal predecessors, (2498), 505 states have call successors, (505), 181 states have call predecessors, (505), 194 states have return successors, (576), 488 states have call predecessors, (576), 500 states have call successors, (576) [2021-12-06 20:25:53,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 3579 transitions. [2021-12-06 20:25:53,101 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 3579 transitions. Word has length 38 [2021-12-06 20:25:53,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:53,101 INFO L470 AbstractCegarLoop]: Abstraction has 2592 states and 3579 transitions. [2021-12-06 20:25:53,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:25:53,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 3579 transitions. [2021-12-06 20:25:53,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 20:25:53,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:53,104 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:25:53,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:25:53,104 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:53,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1529159426, now seen corresponding path program 1 times [2021-12-06 20:25:53,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:53,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468097349] [2021-12-06 20:25:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:53,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:53,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:25:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:25:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:53,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:25:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:25:53,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:25:53,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468097349] [2021-12-06 20:25:53,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468097349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:53,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:53,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:25:53,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850150089] [2021-12-06 20:25:53,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:53,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:25:53,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:25:53,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:25:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:25:53,223 INFO L87 Difference]: Start difference. First operand 2592 states and 3579 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:25:55,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:55,424 INFO L93 Difference]: Finished difference Result 2790 states and 3914 transitions. [2021-12-06 20:25:55,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:25:55,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-12-06 20:25:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:55,439 INFO L225 Difference]: With dead ends: 2790 [2021-12-06 20:25:55,439 INFO L226 Difference]: Without dead ends: 2787 [2021-12-06 20:25:55,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:25:55,442 INFO L933 BasicCegarLoop]: 822 mSDtfsCounter, 1032 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:55,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 1182 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 20:25:55,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2021-12-06 20:25:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2591. [2021-12-06 20:25:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 1892 states have (on average 1.319767441860465) internal successors, (2497), 1955 states have internal predecessors, (2497), 504 states have call successors, (504), 181 states have call predecessors, (504), 194 states have return successors, (576), 488 states have call predecessors, (576), 500 states have call successors, (576) [2021-12-06 20:25:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3577 transitions. [2021-12-06 20:25:55,547 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3577 transitions. Word has length 39 [2021-12-06 20:25:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:55,547 INFO L470 AbstractCegarLoop]: Abstraction has 2591 states and 3577 transitions. [2021-12-06 20:25:55,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:25:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3577 transitions. [2021-12-06 20:25:55,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 20:25:55,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:55,549 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:25:55,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:25:55,549 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:55,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:55,550 INFO L85 PathProgramCache]: Analyzing trace with hash -159609161, now seen corresponding path program 1 times [2021-12-06 20:25:55,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:55,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9053401] [2021-12-06 20:25:55,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:55,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:25:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:55,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:25:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:55,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:25:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:25:55,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:25:55,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9053401] [2021-12-06 20:25:55,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9053401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:55,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:55,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:25:55,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383176264] [2021-12-06 20:25:55,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:55,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:25:55,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:25:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:25:55,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:25:55,681 INFO L87 Difference]: Start difference. First operand 2591 states and 3577 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:25:57,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:57,712 INFO L93 Difference]: Finished difference Result 2789 states and 3912 transitions. [2021-12-06 20:25:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:25:57,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-12-06 20:25:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:25:57,725 INFO L225 Difference]: With dead ends: 2789 [2021-12-06 20:25:57,725 INFO L226 Difference]: Without dead ends: 2786 [2021-12-06 20:25:57,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:25:57,728 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 1024 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:25:57,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1094 Valid, 1185 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-06 20:25:57,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-12-06 20:25:57,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2590. [2021-12-06 20:25:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 1892 states have (on average 1.3192389006342495) internal successors, (2496), 1954 states have internal predecessors, (2496), 503 states have call successors, (503), 181 states have call predecessors, (503), 194 states have return successors, (576), 488 states have call predecessors, (576), 500 states have call successors, (576) [2021-12-06 20:25:57,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 3575 transitions. [2021-12-06 20:25:57,846 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 3575 transitions. Word has length 40 [2021-12-06 20:25:57,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:25:57,846 INFO L470 AbstractCegarLoop]: Abstraction has 2590 states and 3575 transitions. [2021-12-06 20:25:57,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:25:57,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 3575 transitions. [2021-12-06 20:25:57,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 20:25:57,848 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:25:57,848 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:25:57,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:25:57,849 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:25:57,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:57,849 INFO L85 PathProgramCache]: Analyzing trace with hash -653219039, now seen corresponding path program 1 times [2021-12-06 20:25:57,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:57,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925124767] [2021-12-06 20:25:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:57,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:25:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:25:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:25:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:25:57,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:25:57,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925124767] [2021-12-06 20:25:57,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925124767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:57,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:57,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:25:57,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800795426] [2021-12-06 20:25:57,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:57,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:25:57,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:25:57,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:25:57,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:25:57,943 INFO L87 Difference]: Start difference. First operand 2590 states and 3575 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:26:00,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:26:00,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:00,279 INFO L93 Difference]: Finished difference Result 2788 states and 3910 transitions. [2021-12-06 20:26:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:26:00,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2021-12-06 20:26:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:00,293 INFO L225 Difference]: With dead ends: 2788 [2021-12-06 20:26:00,293 INFO L226 Difference]: Without dead ends: 2785 [2021-12-06 20:26:00,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:26:00,295 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 1026 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:00,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 1176 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 20:26:00,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-12-06 20:26:00,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2589. [2021-12-06 20:26:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2589 states, 1892 states have (on average 1.3187103594080338) internal successors, (2495), 1953 states have internal predecessors, (2495), 502 states have call successors, (502), 181 states have call predecessors, (502), 194 states have return successors, (576), 488 states have call predecessors, (576), 500 states have call successors, (576) [2021-12-06 20:26:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 3573 transitions. [2021-12-06 20:26:00,399 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 3573 transitions. Word has length 41 [2021-12-06 20:26:00,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:00,399 INFO L470 AbstractCegarLoop]: Abstraction has 2589 states and 3573 transitions. [2021-12-06 20:26:00,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:26:00,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 3573 transitions. [2021-12-06 20:26:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 20:26:00,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:00,401 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:26:00,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 20:26:00,401 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:00,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1224748794, now seen corresponding path program 1 times [2021-12-06 20:26:00,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:00,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981955675] [2021-12-06 20:26:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:00,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:00,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:00,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:26:00,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:00,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981955675] [2021-12-06 20:26:00,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981955675] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:00,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:00,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:26:00,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323367423] [2021-12-06 20:26:00,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:00,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:26:00,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:00,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:26:00,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:26:00,519 INFO L87 Difference]: Start difference. First operand 2589 states and 3573 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:26:02,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:02,589 INFO L93 Difference]: Finished difference Result 2787 states and 3908 transitions. [2021-12-06 20:26:02,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:26:02,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2021-12-06 20:26:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:02,601 INFO L225 Difference]: With dead ends: 2787 [2021-12-06 20:26:02,601 INFO L226 Difference]: Without dead ends: 2775 [2021-12-06 20:26:02,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:26:02,603 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 1023 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:02,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 1175 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 20:26:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2021-12-06 20:26:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2579. [2021-12-06 20:26:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2579 states, 1883 states have (on average 1.3181093998937865) internal successors, (2482), 1943 states have internal predecessors, (2482), 501 states have call successors, (501), 181 states have call predecessors, (501), 194 states have return successors, (576), 488 states have call predecessors, (576), 500 states have call successors, (576) [2021-12-06 20:26:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3559 transitions. [2021-12-06 20:26:02,696 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3559 transitions. Word has length 42 [2021-12-06 20:26:02,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:02,696 INFO L470 AbstractCegarLoop]: Abstraction has 2579 states and 3559 transitions. [2021-12-06 20:26:02,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:26:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3559 transitions. [2021-12-06 20:26:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-06 20:26:02,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:02,699 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-06 20:26:02,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 20:26:02,700 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:02,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:02,700 INFO L85 PathProgramCache]: Analyzing trace with hash 299575856, now seen corresponding path program 1 times [2021-12-06 20:26:02,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:02,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228217669] [2021-12-06 20:26:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:02,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 20:26:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 20:26:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 20:26:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 20:26:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:26:02,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:02,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228217669] [2021-12-06 20:26:02,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228217669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:02,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:02,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:26:02,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527478697] [2021-12-06 20:26:02,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:02,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:26:02,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:02,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:26:02,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:26:02,825 INFO L87 Difference]: Start difference. First operand 2579 states and 3559 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:26:05,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:05,292 INFO L93 Difference]: Finished difference Result 6290 states and 8671 transitions. [2021-12-06 20:26:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:26:05,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2021-12-06 20:26:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:05,308 INFO L225 Difference]: With dead ends: 6290 [2021-12-06 20:26:05,308 INFO L226 Difference]: Without dead ends: 3718 [2021-12-06 20:26:05,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:26:05,315 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 796 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:05,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [819 Valid, 2774 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 20:26:05,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2021-12-06 20:26:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3352. [2021-12-06 20:26:05,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 2448 states have (on average 1.2957516339869282) internal successors, (3172), 2514 states have internal predecessors, (3172), 624 states have call successors, (624), 252 states have call predecessors, (624), 279 states have return successors, (737), 617 states have call predecessors, (737), 623 states have call successors, (737) [2021-12-06 20:26:05,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 4533 transitions. [2021-12-06 20:26:05,457 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 4533 transitions. Word has length 85 [2021-12-06 20:26:05,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:05,457 INFO L470 AbstractCegarLoop]: Abstraction has 3352 states and 4533 transitions. [2021-12-06 20:26:05,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:26:05,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 4533 transitions. [2021-12-06 20:26:05,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 20:26:05,461 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:05,462 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2021-12-06 20:26:05,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 20:26:05,462 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:05,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:05,462 INFO L85 PathProgramCache]: Analyzing trace with hash -169264503, now seen corresponding path program 1 times [2021-12-06 20:26:05,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:05,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614812643] [2021-12-06 20:26:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:05,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 20:26:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:26:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:26:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:05,604 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 20:26:05,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:05,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614812643] [2021-12-06 20:26:05,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614812643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:05,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:05,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:26:05,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876556041] [2021-12-06 20:26:05,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:05,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:26:05,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:05,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:26:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:26:05,606 INFO L87 Difference]: Start difference. First operand 3352 states and 4533 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:26:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:06,978 INFO L93 Difference]: Finished difference Result 7908 states and 10733 transitions. [2021-12-06 20:26:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:26:06,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 101 [2021-12-06 20:26:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:06,998 INFO L225 Difference]: With dead ends: 7908 [2021-12-06 20:26:06,998 INFO L226 Difference]: Without dead ends: 4570 [2021-12-06 20:26:07,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:26:07,007 INFO L933 BasicCegarLoop]: 1031 mSDtfsCounter, 983 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:07,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 2282 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 20:26:07,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-12-06 20:26:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4146. [2021-12-06 20:26:07,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4146 states, 3042 states have (on average 1.2840236686390532) internal successors, (3906), 3114 states have internal predecessors, (3906), 746 states have call successors, (746), 322 states have call predecessors, (746), 357 states have return successors, (879), 741 states have call predecessors, (879), 745 states have call successors, (879) [2021-12-06 20:26:07,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4146 states to 4146 states and 5531 transitions. [2021-12-06 20:26:07,169 INFO L78 Accepts]: Start accepts. Automaton has 4146 states and 5531 transitions. Word has length 101 [2021-12-06 20:26:07,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:07,170 INFO L470 AbstractCegarLoop]: Abstraction has 4146 states and 5531 transitions. [2021-12-06 20:26:07,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:26:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4146 states and 5531 transitions. [2021-12-06 20:26:07,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 20:26:07,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:07,175 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2021-12-06 20:26:07,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:26:07,176 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:07,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:07,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2107056927, now seen corresponding path program 1 times [2021-12-06 20:26:07,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:07,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064232831] [2021-12-06 20:26:07,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:07,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:26:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 20:26:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 20:26:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 20:26:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 20:26:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 20:26:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 20:26:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:26:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-06 20:26:07,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:07,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064232831] [2021-12-06 20:26:07,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064232831] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:07,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:07,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:26:07,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628025838] [2021-12-06 20:26:07,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:07,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:26:07,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:07,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:26:07,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:26:07,371 INFO L87 Difference]: Start difference. First operand 4146 states and 5531 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:26:11,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:26:14,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:14,088 INFO L93 Difference]: Finished difference Result 12036 states and 16641 transitions. [2021-12-06 20:26:14,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 20:26:14,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2021-12-06 20:26:14,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:14,117 INFO L225 Difference]: With dead ends: 12036 [2021-12-06 20:26:14,117 INFO L226 Difference]: Without dead ends: 7904 [2021-12-06 20:26:14,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-06 20:26:14,125 INFO L933 BasicCegarLoop]: 1111 mSDtfsCounter, 2146 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 1118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1118 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:14,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2235 Valid, 3832 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1118 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-12-06 20:26:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2021-12-06 20:26:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6908. [2021-12-06 20:26:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6908 states, 5085 states have (on average 1.3061946902654866) internal successors, (6642), 5261 states have internal predecessors, (6642), 1224 states have call successors, (1224), 491 states have call predecessors, (1224), 598 states have return successors, (1611), 1243 states have call predecessors, (1611), 1223 states have call successors, (1611) [2021-12-06 20:26:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6908 states to 6908 states and 9477 transitions. [2021-12-06 20:26:14,380 INFO L78 Accepts]: Start accepts. Automaton has 6908 states and 9477 transitions. Word has length 116 [2021-12-06 20:26:14,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:14,380 INFO L470 AbstractCegarLoop]: Abstraction has 6908 states and 9477 transitions. [2021-12-06 20:26:14,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:26:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 6908 states and 9477 transitions. [2021-12-06 20:26:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 20:26:14,385 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:14,385 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2021-12-06 20:26:14,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 20:26:14,386 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:14,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1729290461, now seen corresponding path program 1 times [2021-12-06 20:26:14,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:14,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895564046] [2021-12-06 20:26:14,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:14,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 20:26:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 20:26:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:26:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 20:26:14,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:14,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895564046] [2021-12-06 20:26:14,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895564046] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:14,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628366653] [2021-12-06 20:26:14,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:14,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:14,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:14,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:26:14,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 20:26:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:14,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:26:14,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 20:26:14,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:26:14,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628366653] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:14,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:26:14,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 20:26:14,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224486981] [2021-12-06 20:26:14,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:14,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:26:14,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:14,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:26:14,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:26:14,950 INFO L87 Difference]: Start difference. First operand 6908 states and 9477 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-12-06 20:26:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:15,306 INFO L93 Difference]: Finished difference Result 17458 states and 23882 transitions. [2021-12-06 20:26:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:26:15,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 113 [2021-12-06 20:26:15,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:15,344 INFO L225 Difference]: With dead ends: 17458 [2021-12-06 20:26:15,344 INFO L226 Difference]: Without dead ends: 10568 [2021-12-06 20:26:15,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:26:15,357 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 684 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:15,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 1635 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:26:15,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2021-12-06 20:26:15,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 10560. [2021-12-06 20:26:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10560 states, 7783 states have (on average 1.3129898496723629) internal successors, (10219), 8107 states have internal predecessors, (10219), 1764 states have call successors, (1764), 813 states have call predecessors, (1764), 1012 states have return successors, (2419), 1807 states have call predecessors, (2419), 1763 states have call successors, (2419) [2021-12-06 20:26:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10560 states to 10560 states and 14402 transitions. [2021-12-06 20:26:15,716 INFO L78 Accepts]: Start accepts. Automaton has 10560 states and 14402 transitions. Word has length 113 [2021-12-06 20:26:15,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:15,717 INFO L470 AbstractCegarLoop]: Abstraction has 10560 states and 14402 transitions. [2021-12-06 20:26:15,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-12-06 20:26:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 10560 states and 14402 transitions. [2021-12-06 20:26:15,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-06 20:26:15,722 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:15,723 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:26:15,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:15,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 20:26:15,923 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1544150734, now seen corresponding path program 1 times [2021-12-06 20:26:15,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:15,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3384194] [2021-12-06 20:26:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:15,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:26:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 20:26:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 20:26:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 20:26:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 20:26:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:26:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 20:26:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 20:26:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 20:26:16,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:16,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3384194] [2021-12-06 20:26:16,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3384194] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:16,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:16,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:26:16,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068800384] [2021-12-06 20:26:16,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:16,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:26:16,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:16,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:26:16,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:26:16,138 INFO L87 Difference]: Start difference. First operand 10560 states and 14402 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 7 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 20:26:19,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:19,128 INFO L93 Difference]: Finished difference Result 22888 states and 31715 transitions. [2021-12-06 20:26:19,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:26:19,128 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 7 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 132 [2021-12-06 20:26:19,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:19,160 INFO L225 Difference]: With dead ends: 22888 [2021-12-06 20:26:19,160 INFO L226 Difference]: Without dead ends: 12346 [2021-12-06 20:26:19,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:26:19,182 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 1062 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:19,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1078 Valid, 2294 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 20:26:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12346 states. [2021-12-06 20:26:19,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12346 to 10576. [2021-12-06 20:26:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10576 states, 7799 states have (on average 1.3123477368893448) internal successors, (10235), 8123 states have internal predecessors, (10235), 1764 states have call successors, (1764), 813 states have call predecessors, (1764), 1012 states have return successors, (2419), 1807 states have call predecessors, (2419), 1763 states have call successors, (2419) [2021-12-06 20:26:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10576 states to 10576 states and 14418 transitions. [2021-12-06 20:26:19,627 INFO L78 Accepts]: Start accepts. Automaton has 10576 states and 14418 transitions. Word has length 132 [2021-12-06 20:26:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:19,628 INFO L470 AbstractCegarLoop]: Abstraction has 10576 states and 14418 transitions. [2021-12-06 20:26:19,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 7 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 20:26:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10576 states and 14418 transitions. [2021-12-06 20:26:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 20:26:19,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:19,634 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:26:19,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 20:26:19,634 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:19,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:19,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1099273262, now seen corresponding path program 1 times [2021-12-06 20:26:19,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:19,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123442729] [2021-12-06 20:26:19,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:19,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:26:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 20:26:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 20:26:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 20:26:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 20:26:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:26:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 20:26:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:26:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 20:26:19,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:19,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123442729] [2021-12-06 20:26:19,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123442729] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:19,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385515797] [2021-12-06 20:26:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:19,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:19,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:19,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:26:19,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 20:26:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:20,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:26:20,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-06 20:26:20,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:26:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 20:26:20,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385515797] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:26:20,433 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:26:20,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2021-12-06 20:26:20,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452548353] [2021-12-06 20:26:20,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:26:20,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:26:20,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:20,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:26:20,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:26:20,435 INFO L87 Difference]: Start difference. First operand 10576 states and 14418 transitions. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (30), 7 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 20:26:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:25,743 INFO L93 Difference]: Finished difference Result 22984 states and 31843 transitions. [2021-12-06 20:26:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:26:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (30), 7 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 134 [2021-12-06 20:26:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:25,772 INFO L225 Difference]: With dead ends: 22984 [2021-12-06 20:26:25,772 INFO L226 Difference]: Without dead ends: 12426 [2021-12-06 20:26:25,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:26:25,790 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 813 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:25,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 3622 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-06 20:26:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12426 states. [2021-12-06 20:26:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12426 to 10672. [2021-12-06 20:26:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10672 states, 7895 states have (on average 1.3085497150094998) internal successors, (10331), 8219 states have internal predecessors, (10331), 1764 states have call successors, (1764), 813 states have call predecessors, (1764), 1012 states have return successors, (2419), 1807 states have call predecessors, (2419), 1763 states have call successors, (2419) [2021-12-06 20:26:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10672 states to 10672 states and 14514 transitions. [2021-12-06 20:26:26,225 INFO L78 Accepts]: Start accepts. Automaton has 10672 states and 14514 transitions. Word has length 134 [2021-12-06 20:26:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:26,226 INFO L470 AbstractCegarLoop]: Abstraction has 10672 states and 14514 transitions. [2021-12-06 20:26:26,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (30), 7 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 20:26:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 10672 states and 14514 transitions. [2021-12-06 20:26:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-06 20:26:26,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:26,235 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:26:26,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 20:26:26,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 20:26:26,436 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:26,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:26,436 INFO L85 PathProgramCache]: Analyzing trace with hash 623947696, now seen corresponding path program 1 times [2021-12-06 20:26:26,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:26,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764436358] [2021-12-06 20:26:26,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:26,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:26:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:26:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:26:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 20:26:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:26:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,664 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 20:26:26,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:26,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764436358] [2021-12-06 20:26:26,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764436358] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:26,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730117969] [2021-12-06 20:26:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:26,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:26,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:26:26,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 20:26:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:26,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:26:26,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 20:26:27,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:26:27,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730117969] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:27,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:26:27,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2021-12-06 20:26:27,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836919210] [2021-12-06 20:26:27,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:27,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:26:27,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:27,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:26:27,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:26:27,125 INFO L87 Difference]: Start difference. First operand 10672 states and 14514 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:26:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:28,487 INFO L93 Difference]: Finished difference Result 31982 states and 43503 transitions. [2021-12-06 20:26:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:26:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (13), 4 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 138 [2021-12-06 20:26:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:28,574 INFO L225 Difference]: With dead ends: 31982 [2021-12-06 20:26:28,575 INFO L226 Difference]: Without dead ends: 31974 [2021-12-06 20:26:28,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:26:28,583 INFO L933 BasicCegarLoop]: 1284 mSDtfsCounter, 1632 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:28,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1632 Valid, 2850 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 20:26:28,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31974 states. [2021-12-06 20:26:29,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31974 to 31940. [2021-12-06 20:26:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31940 states, 23623 states have (on average 1.3089362062396817) internal successors, (30921), 24611 states have internal predecessors, (30921), 5284 states have call successors, (5284), 2433 states have call predecessors, (5284), 3032 states have return successors, (7251), 5399 states have call predecessors, (7251), 5283 states have call successors, (7251) [2021-12-06 20:26:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31940 states to 31940 states and 43456 transitions. [2021-12-06 20:26:29,718 INFO L78 Accepts]: Start accepts. Automaton has 31940 states and 43456 transitions. Word has length 138 [2021-12-06 20:26:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:29,719 INFO L470 AbstractCegarLoop]: Abstraction has 31940 states and 43456 transitions. [2021-12-06 20:26:29,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:26:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 31940 states and 43456 transitions. [2021-12-06 20:26:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-06 20:26:29,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:29,736 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:26:29,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 20:26:29,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 20:26:29,937 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:29,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1636194720, now seen corresponding path program 1 times [2021-12-06 20:26:29,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:29,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339707675] [2021-12-06 20:26:29,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:29,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:26:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 20:26:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 20:26:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 20:26:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 20:26:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:26:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 20:26:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 20:26:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 20:26:30,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:30,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339707675] [2021-12-06 20:26:30,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339707675] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:30,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811805117] [2021-12-06 20:26:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:30,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:30,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:30,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:26:30,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 20:26:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:30,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:26:30,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:30,659 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-06 20:26:30,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:26:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 20:26:30,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811805117] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:26:30,802 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:26:30,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 18 [2021-12-06 20:26:30,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080634645] [2021-12-06 20:26:30,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:26:30,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 20:26:30,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:30,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 20:26:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-12-06 20:26:30,804 INFO L87 Difference]: Start difference. First operand 31940 states and 43456 transitions. Second operand has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 13 states have internal predecessors, (121), 2 states have call successors, (30), 7 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 20:26:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:36,679 INFO L93 Difference]: Finished difference Result 69696 states and 96399 transitions. [2021-12-06 20:26:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 20:26:36,680 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 13 states have internal predecessors, (121), 2 states have call successors, (30), 7 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2021-12-06 20:26:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:36,791 INFO L225 Difference]: With dead ends: 69696 [2021-12-06 20:26:36,791 INFO L226 Difference]: Without dead ends: 37774 [2021-12-06 20:26:36,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-12-06 20:26:36,854 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 1045 mSDsluCounter, 4258 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 766 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 5057 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 766 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:36,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 5057 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [766 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-06 20:26:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37774 states. [2021-12-06 20:26:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37774 to 32516. [2021-12-06 20:26:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32516 states, 24199 states have (on average 1.30158271002934) internal successors, (31497), 25187 states have internal predecessors, (31497), 5284 states have call successors, (5284), 2433 states have call predecessors, (5284), 3032 states have return successors, (7251), 5399 states have call predecessors, (7251), 5283 states have call successors, (7251) [2021-12-06 20:26:38,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32516 states to 32516 states and 44032 transitions. [2021-12-06 20:26:38,107 INFO L78 Accepts]: Start accepts. Automaton has 32516 states and 44032 transitions. Word has length 140 [2021-12-06 20:26:38,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:38,108 INFO L470 AbstractCegarLoop]: Abstraction has 32516 states and 44032 transitions. [2021-12-06 20:26:38,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 13 states have internal predecessors, (121), 2 states have call successors, (30), 7 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 20:26:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 32516 states and 44032 transitions. [2021-12-06 20:26:38,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-06 20:26:38,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:38,125 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2021-12-06 20:26:38,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 20:26:38,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:38,327 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:38,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:38,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1012643333, now seen corresponding path program 1 times [2021-12-06 20:26:38,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:38,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368297904] [2021-12-06 20:26:38,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:38,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:26:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:26:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:26:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 20:26:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:26:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 20:26:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-06 20:26:38,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:38,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368297904] [2021-12-06 20:26:38,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368297904] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:38,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093393613] [2021-12-06 20:26:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:38,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:38,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:38,592 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:26:38,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 20:26:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:38,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:26:38,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 20:26:39,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:26:39,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093393613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:39,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:26:39,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-12-06 20:26:39,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282413178] [2021-12-06 20:26:39,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:39,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:26:39,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:39,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:26:39,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:26:39,064 INFO L87 Difference]: Start difference. First operand 32516 states and 44032 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-06 20:26:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:40,082 INFO L93 Difference]: Finished difference Result 49994 states and 67597 transitions. [2021-12-06 20:26:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:26:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 148 [2021-12-06 20:26:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:40,127 INFO L225 Difference]: With dead ends: 49994 [2021-12-06 20:26:40,127 INFO L226 Difference]: Without dead ends: 17436 [2021-12-06 20:26:40,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:26:40,171 INFO L933 BasicCegarLoop]: 1042 mSDtfsCounter, 743 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:40,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 1278 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:26:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17436 states. [2021-12-06 20:26:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17436 to 17392. [2021-12-06 20:26:40,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17392 states, 12948 states have (on average 1.2892338585109668) internal successors, (16693), 13453 states have internal predecessors, (16693), 2815 states have call successors, (2815), 1317 states have call predecessors, (2815), 1628 states have return successors, (3828), 2873 states have call predecessors, (3828), 2814 states have call successors, (3828) [2021-12-06 20:26:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17392 states to 17392 states and 23336 transitions. [2021-12-06 20:26:40,848 INFO L78 Accepts]: Start accepts. Automaton has 17392 states and 23336 transitions. Word has length 148 [2021-12-06 20:26:40,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:40,849 INFO L470 AbstractCegarLoop]: Abstraction has 17392 states and 23336 transitions. [2021-12-06 20:26:40,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-06 20:26:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand 17392 states and 23336 transitions. [2021-12-06 20:26:40,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-06 20:26:40,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:40,861 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:26:40,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 20:26:41,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:41,063 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:41,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1058668567, now seen corresponding path program 1 times [2021-12-06 20:26:41,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:41,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936453400] [2021-12-06 20:26:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:41,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:26:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:26:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:26:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 20:26:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 20:26:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 20:26:41,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:41,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936453400] [2021-12-06 20:26:41,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936453400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:41,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:41,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 20:26:41,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479558143] [2021-12-06 20:26:41,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:41,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:26:41,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:41,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:26:41,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:26:41,311 INFO L87 Difference]: Start difference. First operand 17392 states and 23336 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:26:45,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:26:45,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:45,946 INFO L93 Difference]: Finished difference Result 36304 states and 49148 transitions. [2021-12-06 20:26:45,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:26:45,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 150 [2021-12-06 20:26:45,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:46,007 INFO L225 Difference]: With dead ends: 36304 [2021-12-06 20:26:46,007 INFO L226 Difference]: Without dead ends: 18930 [2021-12-06 20:26:46,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:26:46,033 INFO L933 BasicCegarLoop]: 810 mSDtfsCounter, 715 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 531 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 4083 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:46,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 4083 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 1197 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-12-06 20:26:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18930 states. [2021-12-06 20:26:46,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18930 to 17539. [2021-12-06 20:26:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17539 states, 13053 states have (on average 1.2869072243928599) internal successors, (16798), 13558 states have internal predecessors, (16798), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3963), 2915 states have call predecessors, (3963), 2835 states have call successors, (3963) [2021-12-06 20:26:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17539 states to 17539 states and 23597 transitions. [2021-12-06 20:26:46,839 INFO L78 Accepts]: Start accepts. Automaton has 17539 states and 23597 transitions. Word has length 150 [2021-12-06 20:26:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:46,840 INFO L470 AbstractCegarLoop]: Abstraction has 17539 states and 23597 transitions. [2021-12-06 20:26:46,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:26:46,840 INFO L276 IsEmpty]: Start isEmpty. Operand 17539 states and 23597 transitions. [2021-12-06 20:26:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-06 20:26:46,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:46,853 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:26:46,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 20:26:46,853 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:46,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:46,853 INFO L85 PathProgramCache]: Analyzing trace with hash -108107043, now seen corresponding path program 1 times [2021-12-06 20:26:46,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:46,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046640115] [2021-12-06 20:26:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:46,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:46,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:26:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:26:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:26:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 20:26:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:26:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:26:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 20:26:47,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:47,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046640115] [2021-12-06 20:26:47,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046640115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:47,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:47,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:26:47,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246371939] [2021-12-06 20:26:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:47,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:26:47,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:26:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:26:47,107 INFO L87 Difference]: Start difference. First operand 17539 states and 23597 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:26:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:49,221 INFO L93 Difference]: Finished difference Result 36493 states and 49535 transitions. [2021-12-06 20:26:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:26:49,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 156 [2021-12-06 20:26:49,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:49,272 INFO L225 Difference]: With dead ends: 36493 [2021-12-06 20:26:49,273 INFO L226 Difference]: Without dead ends: 18972 [2021-12-06 20:26:49,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:26:49,301 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 484 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2347 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:49,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2347 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 20:26:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18972 states. [2021-12-06 20:26:49,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18972 to 17581. [2021-12-06 20:26:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17581 states, 13095 states have (on average 1.2859870179457809) internal successors, (16840), 13600 states have internal predecessors, (16840), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3963), 2915 states have call predecessors, (3963), 2835 states have call successors, (3963) [2021-12-06 20:26:49,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17581 states to 17581 states and 23639 transitions. [2021-12-06 20:26:49,996 INFO L78 Accepts]: Start accepts. Automaton has 17581 states and 23639 transitions. Word has length 156 [2021-12-06 20:26:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:49,996 INFO L470 AbstractCegarLoop]: Abstraction has 17581 states and 23639 transitions. [2021-12-06 20:26:49,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:26:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 17581 states and 23639 transitions. [2021-12-06 20:26:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 20:26:50,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:50,010 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 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] [2021-12-06 20:26:50,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 20:26:50,011 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:50,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1272143806, now seen corresponding path program 1 times [2021-12-06 20:26:50,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:50,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135677058] [2021-12-06 20:26:50,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:50,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:26:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 20:26:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 20:26:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 20:26:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 20:26:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:26:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 20:26:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:26:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 20:26:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-06 20:26:50,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:50,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135677058] [2021-12-06 20:26:50,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135677058] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:50,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037829173] [2021-12-06 20:26:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:50,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:50,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:50,276 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:26:50,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 20:26:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:50,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 20:26:50,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-12-06 20:26:50,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:26:50,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037829173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:50,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:26:50,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 11 [2021-12-06 20:26:50,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104518358] [2021-12-06 20:26:50,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:50,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:26:50,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:50,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:26:50,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:26:50,768 INFO L87 Difference]: Start difference. First operand 17581 states and 23639 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:26:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:52,510 INFO L93 Difference]: Finished difference Result 38812 states and 52975 transitions. [2021-12-06 20:26:52,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:26:52,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 158 [2021-12-06 20:26:52,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:52,562 INFO L225 Difference]: With dead ends: 38812 [2021-12-06 20:26:52,562 INFO L226 Difference]: Without dead ends: 21249 [2021-12-06 20:26:52,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:26:52,594 INFO L933 BasicCegarLoop]: 1148 mSDtfsCounter, 463 mSDsluCounter, 4083 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 5231 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:52,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 5231 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 20:26:52,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21249 states. [2021-12-06 20:26:53,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21249 to 17671. [2021-12-06 20:26:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17671 states, 13185 states have (on average 1.2840348881304513) internal successors, (16930), 13660 states have internal predecessors, (16930), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3963), 2945 states have call predecessors, (3963), 2835 states have call successors, (3963) [2021-12-06 20:26:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17671 states to 17671 states and 23729 transitions. [2021-12-06 20:26:53,506 INFO L78 Accepts]: Start accepts. Automaton has 17671 states and 23729 transitions. Word has length 158 [2021-12-06 20:26:53,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:53,506 INFO L470 AbstractCegarLoop]: Abstraction has 17671 states and 23729 transitions. [2021-12-06 20:26:53,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:26:53,506 INFO L276 IsEmpty]: Start isEmpty. Operand 17671 states and 23729 transitions. [2021-12-06 20:26:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 20:26:53,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:53,516 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:26:53,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 20:26:53,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 20:26:53,718 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:53,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:53,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2141792453, now seen corresponding path program 1 times [2021-12-06 20:26:53,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:53,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053710462] [2021-12-06 20:26:53,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:53,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:26:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:26:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:26:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 20:26:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:26:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 20:26:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 20:26:53,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:53,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053710462] [2021-12-06 20:26:53,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053710462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:53,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:53,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:26:53,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934447981] [2021-12-06 20:26:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:53,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:26:53,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:26:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:26:53,960 INFO L87 Difference]: Start difference. First operand 17671 states and 23729 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:26:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:57,068 INFO L93 Difference]: Finished difference Result 36757 states and 49799 transitions. [2021-12-06 20:26:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:26:57,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 157 [2021-12-06 20:26:57,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:57,114 INFO L225 Difference]: With dead ends: 36757 [2021-12-06 20:26:57,115 INFO L226 Difference]: Without dead ends: 19104 [2021-12-06 20:26:57,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:26:57,144 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 483 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:57,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 2691 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-06 20:26:57,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19104 states. [2021-12-06 20:26:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19104 to 17713. [2021-12-06 20:26:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17713 states, 13227 states have (on average 1.2831329855598397) internal successors, (16972), 13702 states have internal predecessors, (16972), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3963), 2945 states have call predecessors, (3963), 2835 states have call successors, (3963) [2021-12-06 20:26:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17713 states to 17713 states and 23771 transitions. [2021-12-06 20:26:57,883 INFO L78 Accepts]: Start accepts. Automaton has 17713 states and 23771 transitions. Word has length 157 [2021-12-06 20:26:57,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:26:57,883 INFO L470 AbstractCegarLoop]: Abstraction has 17713 states and 23771 transitions. [2021-12-06 20:26:57,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:26:57,884 INFO L276 IsEmpty]: Start isEmpty. Operand 17713 states and 23771 transitions. [2021-12-06 20:26:57,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 20:26:57,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:26:57,893 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:26:57,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 20:26:57,893 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:26:57,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:57,893 INFO L85 PathProgramCache]: Analyzing trace with hash -879612265, now seen corresponding path program 1 times [2021-12-06 20:26:57,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:57,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944525640] [2021-12-06 20:26:57,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:57,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:26:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:26:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:26:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:26:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:26:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-06 20:26:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:26:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:26:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:26:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 20:26:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 20:26:58,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:58,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944525640] [2021-12-06 20:26:58,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944525640] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:58,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372744858] [2021-12-06 20:26:58,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:58,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:26:58,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:58,149 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:26:58,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 20:26:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:58,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:26:58,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 20:26:58,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:26:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 20:26:58,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372744858] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 20:26:58,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:26:58,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5] total 12 [2021-12-06 20:26:58,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544006097] [2021-12-06 20:26:58,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:58,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:26:58,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:26:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:26:58,860 INFO L87 Difference]: Start difference. First operand 17713 states and 23771 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:26:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:59,567 INFO L93 Difference]: Finished difference Result 35450 states and 47744 transitions. [2021-12-06 20:26:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:26:59,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 158 [2021-12-06 20:26:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:26:59,604 INFO L225 Difference]: With dead ends: 35450 [2021-12-06 20:26:59,604 INFO L226 Difference]: Without dead ends: 17755 [2021-12-06 20:26:59,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:26:59,628 INFO L933 BasicCegarLoop]: 854 mSDtfsCounter, 10 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:26:59,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 1706 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:26:59,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17755 states. [2021-12-06 20:27:00,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17755 to 17755. [2021-12-06 20:27:00,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17755 states, 13269 states have (on average 1.282236792523928) internal successors, (17014), 13744 states have internal predecessors, (17014), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3963), 2945 states have call predecessors, (3963), 2835 states have call successors, (3963) [2021-12-06 20:27:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17755 states to 17755 states and 23813 transitions. [2021-12-06 20:27:00,359 INFO L78 Accepts]: Start accepts. Automaton has 17755 states and 23813 transitions. Word has length 158 [2021-12-06 20:27:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:27:00,360 INFO L470 AbstractCegarLoop]: Abstraction has 17755 states and 23813 transitions. [2021-12-06 20:27:00,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:27:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 17755 states and 23813 transitions. [2021-12-06 20:27:00,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-06 20:27:00,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:27:00,372 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:27:00,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 20:27:00,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:00,574 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:27:00,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:27:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1261992639, now seen corresponding path program 1 times [2021-12-06 20:27:00,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:27:00,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457050400] [2021-12-06 20:27:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:00,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:27:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:27:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:27:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:27:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:27:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:27:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:27:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 20:27:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:27:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 20:27:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-06 20:27:00,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:27:00,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457050400] [2021-12-06 20:27:00,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457050400] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:27:00,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367912739] [2021-12-06 20:27:00,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:00,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:00,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:27:00,898 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:27:00,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 20:27:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:01,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 20:27:01,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:27:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 20:27:01,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:27:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-06 20:27:01,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367912739] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:27:01,649 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:27:01,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 12 [2021-12-06 20:27:01,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577432125] [2021-12-06 20:27:01,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:27:01,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:27:01,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:27:01,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:27:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:27:01,650 INFO L87 Difference]: Start difference. First operand 17755 states and 23813 transitions. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:27:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:27:04,007 INFO L93 Difference]: Finished difference Result 37009 states and 50135 transitions. [2021-12-06 20:27:04,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:27:04,007 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 159 [2021-12-06 20:27:04,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:27:04,056 INFO L225 Difference]: With dead ends: 37009 [2021-12-06 20:27:04,056 INFO L226 Difference]: Without dead ends: 19272 [2021-12-06 20:27:04,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 338 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-12-06 20:27:04,088 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 966 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 5484 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:27:04,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 5484 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-06 20:27:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19272 states. [2021-12-06 20:27:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19272 to 17881. [2021-12-06 20:27:04,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17881 states, 13395 states have (on average 1.2795819335572975) internal successors, (17140), 13870 states have internal predecessors, (17140), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3963), 2945 states have call predecessors, (3963), 2835 states have call successors, (3963) [2021-12-06 20:27:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17881 states to 17881 states and 23939 transitions. [2021-12-06 20:27:04,842 INFO L78 Accepts]: Start accepts. Automaton has 17881 states and 23939 transitions. Word has length 159 [2021-12-06 20:27:04,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:27:04,842 INFO L470 AbstractCegarLoop]: Abstraction has 17881 states and 23939 transitions. [2021-12-06 20:27:04,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:27:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 17881 states and 23939 transitions. [2021-12-06 20:27:04,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-06 20:27:04,852 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:27:04,852 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 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] [2021-12-06 20:27:04,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 20:27:05,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:05,053 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:27:05,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:27:05,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1758936904, now seen corresponding path program 2 times [2021-12-06 20:27:05,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:27:05,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197368853] [2021-12-06 20:27:05,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:05,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:27:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:27:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:27:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:27:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:27:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 20:27:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 20:27:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 20:27:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 20:27:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 20:27:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 20:27:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:27:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 20:27:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-06 20:27:05,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:27:05,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197368853] [2021-12-06 20:27:05,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197368853] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:27:05,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853280553] [2021-12-06 20:27:05,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:27:05,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:05,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:27:05,297 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:27:05,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 20:27:06,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:27:06,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:27:06,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1973 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 20:27:06,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:27:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-06 20:27:06,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:27:06,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853280553] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:27:06,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:27:06,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 10 [2021-12-06 20:27:06,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215684766] [2021-12-06 20:27:06,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:27:06,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:27:06,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:27:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:27:06,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:27:06,133 INFO L87 Difference]: Start difference. First operand 17881 states and 23939 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 20:27:06,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:27:06,759 INFO L93 Difference]: Finished difference Result 35804 states and 47918 transitions. [2021-12-06 20:27:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:27:06,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2021-12-06 20:27:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:27:06,811 INFO L225 Difference]: With dead ends: 35804 [2021-12-06 20:27:06,811 INFO L226 Difference]: Without dead ends: 17881 [2021-12-06 20:27:06,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:27:06,841 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 0 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:27:06,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:27:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17881 states. [2021-12-06 20:27:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17881 to 17881. [2021-12-06 20:27:07,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17881 states, 13395 states have (on average 1.2795819335572975) internal successors, (17140), 13870 states have internal predecessors, (17140), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3933), 2945 states have call predecessors, (3933), 2835 states have call successors, (3933) [2021-12-06 20:27:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17881 states to 17881 states and 23909 transitions. [2021-12-06 20:27:07,547 INFO L78 Accepts]: Start accepts. Automaton has 17881 states and 23909 transitions. Word has length 164 [2021-12-06 20:27:07,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:27:07,547 INFO L470 AbstractCegarLoop]: Abstraction has 17881 states and 23909 transitions. [2021-12-06 20:27:07,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 20:27:07,548 INFO L276 IsEmpty]: Start isEmpty. Operand 17881 states and 23909 transitions. [2021-12-06 20:27:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-06 20:27:07,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:27:07,558 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:27:07,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 20:27:07,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-06 20:27:07,760 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:27:07,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:27:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1790262875, now seen corresponding path program 2 times [2021-12-06 20:27:07,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:27:07,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78561741] [2021-12-06 20:27:07,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:07,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:27:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:07,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:07,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:27:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:07,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:27:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:07,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:27:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:27:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:27:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:07,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:08,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:27:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:08,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 20:27:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:08,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:27:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 20:27:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 20:27:08,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:27:08,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78561741] [2021-12-06 20:27:08,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78561741] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:27:08,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553858487] [2021-12-06 20:27:08,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:27:08,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:08,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:27:08,067 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:27:08,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 20:27:08,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:27:08,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:27:08,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1846 conjuncts, 52 conjunts are in the unsatisfiable core [2021-12-06 20:27:08,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:27:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-06 20:27:09,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:27:09,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553858487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:27:09,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:27:09,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2021-12-06 20:27:09,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210048174] [2021-12-06 20:27:09,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:27:09,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 20:27:09,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:27:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 20:27:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2021-12-06 20:27:09,035 INFO L87 Difference]: Start difference. First operand 17881 states and 23909 transitions. Second operand has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-06 20:27:11,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:27:11,755 INFO L93 Difference]: Finished difference Result 45127 states and 61915 transitions. [2021-12-06 20:27:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 20:27:11,755 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 162 [2021-12-06 20:27:11,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:27:11,823 INFO L225 Difference]: With dead ends: 45127 [2021-12-06 20:27:11,824 INFO L226 Difference]: Without dead ends: 27264 [2021-12-06 20:27:11,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=1071, Unknown=0, NotChecked=0, Total=1190 [2021-12-06 20:27:11,851 INFO L933 BasicCegarLoop]: 1932 mSDtfsCounter, 2631 mSDsluCounter, 20117 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 22049 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:27:11,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2691 Valid, 22049 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 20:27:11,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27264 states. [2021-12-06 20:27:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27264 to 17860. [2021-12-06 20:27:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17860 states, 13374 states have (on average 1.2764318827575893) internal successors, (17071), 13849 states have internal predecessors, (17071), 2836 states have call successors, (2836), 1317 states have call predecessors, (2836), 1649 states have return successors, (3933), 2945 states have call predecessors, (3933), 2835 states have call successors, (3933) [2021-12-06 20:27:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17860 states to 17860 states and 23840 transitions. [2021-12-06 20:27:12,776 INFO L78 Accepts]: Start accepts. Automaton has 17860 states and 23840 transitions. Word has length 162 [2021-12-06 20:27:12,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:27:12,776 INFO L470 AbstractCegarLoop]: Abstraction has 17860 states and 23840 transitions. [2021-12-06 20:27:12,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-06 20:27:12,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17860 states and 23840 transitions. [2021-12-06 20:27:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-06 20:27:12,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:27:12,815 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:27:12,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 20:27:13,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:13,017 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:27:13,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:27:13,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1843347202, now seen corresponding path program 1 times [2021-12-06 20:27:13,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:27:13,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521714396] [2021-12-06 20:27:13,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:13,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:27:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:27:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:27:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:27:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:27:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 20:27:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 20:27:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 20:27:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 20:27:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 20:27:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 20:27:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:27:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 20:27:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:13,509 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-12-06 20:27:13,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:27:13,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521714396] [2021-12-06 20:27:13,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521714396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:27:13,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:27:13,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-06 20:27:13,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291389973] [2021-12-06 20:27:13,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:27:13,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 20:27:13,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:27:13,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 20:27:13,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-12-06 20:27:13,510 INFO L87 Difference]: Start difference. First operand 17860 states and 23840 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (17), 7 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-06 20:27:25,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:27:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:27:29,772 INFO L93 Difference]: Finished difference Result 52594 states and 72169 transitions. [2021-12-06 20:27:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-06 20:27:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (17), 7 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 170 [2021-12-06 20:27:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:27:29,853 INFO L225 Difference]: With dead ends: 52594 [2021-12-06 20:27:29,853 INFO L226 Difference]: Without dead ends: 34732 [2021-12-06 20:27:29,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=364, Invalid=1988, Unknown=0, NotChecked=0, Total=2352 [2021-12-06 20:27:29,883 INFO L933 BasicCegarLoop]: 1143 mSDtfsCounter, 3920 mSDsluCounter, 9496 mSDsCounter, 0 mSdLazyCounter, 8399 mSolverCounterSat, 1968 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4036 SdHoareTripleChecker+Valid, 10639 SdHoareTripleChecker+Invalid, 10368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1968 IncrementalHoareTripleChecker+Valid, 8399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-12-06 20:27:29,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4036 Valid, 10639 Invalid, 10368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1968 Valid, 8399 Invalid, 1 Unknown, 0 Unchecked, 13.8s Time] [2021-12-06 20:27:29,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34732 states. [2021-12-06 20:27:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34732 to 25861. [2021-12-06 20:27:31,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25861 states, 19401 states have (on average 1.273491057162002) internal successors, (24707), 19998 states have internal predecessors, (24707), 4132 states have call successors, (4132), 1974 states have call predecessors, (4132), 2327 states have return successors, (5343), 4218 states have call predecessors, (5343), 4131 states have call successors, (5343) [2021-12-06 20:27:31,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25861 states to 25861 states and 34182 transitions. [2021-12-06 20:27:31,394 INFO L78 Accepts]: Start accepts. Automaton has 25861 states and 34182 transitions. Word has length 170 [2021-12-06 20:27:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:27:31,394 INFO L470 AbstractCegarLoop]: Abstraction has 25861 states and 34182 transitions. [2021-12-06 20:27:31,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (17), 7 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-06 20:27:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 25861 states and 34182 transitions. [2021-12-06 20:27:31,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-06 20:27:31,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:27:31,408 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:27:31,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 20:27:31,408 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:27:31,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:27:31,408 INFO L85 PathProgramCache]: Analyzing trace with hash 541801711, now seen corresponding path program 1 times [2021-12-06 20:27:31,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:27:31,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022566136] [2021-12-06 20:27:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:31,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:27:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:27:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:27:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:27:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:27:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:27:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:27:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 20:27:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 20:27:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:27:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:27:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 20:27:31,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:27:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022566136] [2021-12-06 20:27:31,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022566136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:27:31,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:27:31,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:27:31,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807586464] [2021-12-06 20:27:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:27:31,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:27:31,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:27:31,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:27:31,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:27:31,582 INFO L87 Difference]: Start difference. First operand 25861 states and 34182 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 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) [2021-12-06 20:27:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:27:39,051 INFO L93 Difference]: Finished difference Result 70237 states and 94094 transitions. [2021-12-06 20:27:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 20:27:39,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 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 174 [2021-12-06 20:27:39,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:27:39,176 INFO L225 Difference]: With dead ends: 70237 [2021-12-06 20:27:39,176 INFO L226 Difference]: Without dead ends: 46629 [2021-12-06 20:27:39,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-12-06 20:27:39,226 INFO L933 BasicCegarLoop]: 1403 mSDtfsCounter, 1365 mSDsluCounter, 3911 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 5314 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:27:39,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1410 Valid, 5314 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-06 20:27:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46629 states. [2021-12-06 20:27:41,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46629 to 32974. [2021-12-06 20:27:41,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32974 states, 24777 states have (on average 1.2707349558057877) internal successors, (31485), 25530 states have internal predecessors, (31485), 5254 states have call successors, (5254), 2496 states have call predecessors, (5254), 2942 states have return successors, (6804), 5355 states have call predecessors, (6804), 5253 states have call successors, (6804) [2021-12-06 20:27:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32974 states to 32974 states and 43543 transitions. [2021-12-06 20:27:41,301 INFO L78 Accepts]: Start accepts. Automaton has 32974 states and 43543 transitions. Word has length 174 [2021-12-06 20:27:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:27:41,302 INFO L470 AbstractCegarLoop]: Abstraction has 32974 states and 43543 transitions. [2021-12-06 20:27:41,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 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) [2021-12-06 20:27:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 32974 states and 43543 transitions. [2021-12-06 20:27:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-06 20:27:41,317 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:27:41,317 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:27:41,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 20:27:41,317 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:27:41,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:27:41,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1197901180, now seen corresponding path program 1 times [2021-12-06 20:27:41,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:27:41,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874490451] [2021-12-06 20:27:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:41,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:27:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:27:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:27:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:27:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:27:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:27:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:27:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 20:27:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:27:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 20:27:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 20:27:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 20:27:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 20:27:41,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:27:41,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874490451] [2021-12-06 20:27:41,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874490451] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:27:41,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320541061] [2021-12-06 20:27:41,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:41,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:41,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:27:41,587 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:27:41,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 20:27:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:42,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 1945 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:27:42,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:27:42,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-12-06 20:27:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 20:27:42,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:27:42,531 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 20:27:42,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320541061] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:27:42,531 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:27:42,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 13 [2021-12-06 20:27:42,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58415447] [2021-12-06 20:27:42,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:27:42,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:27:42,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:27:42,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:27:42,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:27:42,532 INFO L87 Difference]: Start difference. First operand 32974 states and 43543 transitions. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (37), 7 states have call predecessors, (37), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 20:27:47,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:27:47,182 INFO L93 Difference]: Finished difference Result 69997 states and 93414 transitions. [2021-12-06 20:27:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:27:47,183 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (37), 7 states have call predecessors, (37), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 180 [2021-12-06 20:27:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:27:47,272 INFO L225 Difference]: With dead ends: 69997 [2021-12-06 20:27:47,272 INFO L226 Difference]: Without dead ends: 37041 [2021-12-06 20:27:47,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2021-12-06 20:27:47,325 INFO L933 BasicCegarLoop]: 779 mSDtfsCounter, 1108 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:27:47,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 3997 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [767 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 20:27:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37041 states. [2021-12-06 20:27:49,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37041 to 31678. [2021-12-06 20:27:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31678 states, 23904 states have (on average 1.2624246987951808) internal successors, (30177), 24450 states have internal predecessors, (30177), 5026 states have call successors, (5026), 2496 states have call predecessors, (5026), 2747 states have return successors, (5733), 5049 states have call predecessors, (5733), 5025 states have call successors, (5733) [2021-12-06 20:27:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31678 states to 31678 states and 40936 transitions. [2021-12-06 20:27:49,359 INFO L78 Accepts]: Start accepts. Automaton has 31678 states and 40936 transitions. Word has length 180 [2021-12-06 20:27:49,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:27:49,359 INFO L470 AbstractCegarLoop]: Abstraction has 31678 states and 40936 transitions. [2021-12-06 20:27:49,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 8 states have internal predecessors, (162), 2 states have call successors, (37), 7 states have call predecessors, (37), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 20:27:49,359 INFO L276 IsEmpty]: Start isEmpty. Operand 31678 states and 40936 transitions. [2021-12-06 20:27:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-06 20:27:49,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:27:49,375 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:27:49,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-06 20:27:49,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:49,577 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:27:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:27:49,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1661398628, now seen corresponding path program 2 times [2021-12-06 20:27:49,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:27:49,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948690691] [2021-12-06 20:27:49,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:27:49,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:27:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:27:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:27:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:27:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:27:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:27:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 20:27:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:49,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 20:27:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:27:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:27:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 20:27:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:27:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 20:27:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 20:27:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:27:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 20:27:50,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:27:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948690691] [2021-12-06 20:27:50,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948690691] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:27:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952341517] [2021-12-06 20:27:50,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:27:50,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:27:50,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:27:50,047 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:27:50,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 20:27:50,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:27:50,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:27:51,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 2269 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 20:27:51,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:27:51,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-12-06 20:27:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 20:27:51,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:27:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-06 20:27:51,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952341517] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:27:51,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:27:51,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 22 [2021-12-06 20:27:51,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080541531] [2021-12-06 20:27:51,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:27:51,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 20:27:51,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:27:51,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 20:27:51,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-12-06 20:27:51,473 INFO L87 Difference]: Start difference. First operand 31678 states and 40936 transitions. Second operand has 22 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 17 states have internal predecessors, (171), 2 states have call successors, (37), 7 states have call predecessors, (37), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 20:27:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:27:59,541 INFO L93 Difference]: Finished difference Result 68317 states and 89937 transitions. [2021-12-06 20:27:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 20:27:59,542 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 17 states have internal predecessors, (171), 2 states have call successors, (37), 7 states have call predecessors, (37), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 183 [2021-12-06 20:27:59,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:27:59,630 INFO L225 Difference]: With dead ends: 68317 [2021-12-06 20:27:59,630 INFO L226 Difference]: Without dead ends: 36657 [2021-12-06 20:27:59,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2021-12-06 20:27:59,677 INFO L933 BasicCegarLoop]: 794 mSDtfsCounter, 862 mSDsluCounter, 5748 mSDsCounter, 0 mSdLazyCounter, 2933 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 6542 SdHoareTripleChecker+Invalid, 3516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 2933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:27:59,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [884 Valid, 6542 Invalid, 3516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 2933 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-06 20:27:59,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36657 states. [2021-12-06 20:28:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36657 to 32164. [2021-12-06 20:28:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32164 states, 24390 states have (on average 1.2571955719557195) internal successors, (30663), 24936 states have internal predecessors, (30663), 5026 states have call successors, (5026), 2496 states have call predecessors, (5026), 2747 states have return successors, (5733), 5049 states have call predecessors, (5733), 5025 states have call successors, (5733) [2021-12-06 20:28:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32164 states to 32164 states and 41422 transitions. [2021-12-06 20:28:01,732 INFO L78 Accepts]: Start accepts. Automaton has 32164 states and 41422 transitions. Word has length 183 [2021-12-06 20:28:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:01,732 INFO L470 AbstractCegarLoop]: Abstraction has 32164 states and 41422 transitions. [2021-12-06 20:28:01,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 17 states have internal predecessors, (171), 2 states have call successors, (37), 7 states have call predecessors, (37), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 20:28:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 32164 states and 41422 transitions. [2021-12-06 20:28:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-06 20:28:01,746 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:01,747 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:28:01,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 20:28:01,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:28:01,949 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:01,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:01,950 INFO L85 PathProgramCache]: Analyzing trace with hash -15638363, now seen corresponding path program 1 times [2021-12-06 20:28:01,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:01,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569361237] [2021-12-06 20:28:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:01,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:28:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:28:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:28:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:28:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 20:28:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 20:28:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 20:28:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 20:28:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 20:28:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 20:28:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:28:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 20:28:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 20:28:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 20:28:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-06 20:28:02,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:02,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569361237] [2021-12-06 20:28:02,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569361237] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:28:02,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354105949] [2021-12-06 20:28:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:02,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:28:02,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:28:02,498 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:28:02,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 20:28:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:16,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 88 conjunts are in the unsatisfiable core [2021-12-06 20:28:16,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:28:16,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 20:28:16,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 20:28:16,845 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 20:28:16,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 25 [2021-12-06 20:28:16,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:28:16,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 20:28:16,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-12-06 20:28:16,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 20:28:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-12-06 20:28:17,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:28:17,713 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-12-06 20:28:17,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354105949] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 20:28:17,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:28:17,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [21, 17] total 32 [2021-12-06 20:28:17,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842302905] [2021-12-06 20:28:17,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:17,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:28:17,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:17,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:28:17,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2021-12-06 20:28:17,715 INFO L87 Difference]: Start difference. First operand 32164 states and 41422 transitions. Second operand has 11 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-06 20:28:25,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:28:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:28,575 INFO L93 Difference]: Finished difference Result 102241 states and 133526 transitions. [2021-12-06 20:28:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:28:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 191 [2021-12-06 20:28:28,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:28,779 INFO L225 Difference]: With dead ends: 102241 [2021-12-06 20:28:28,779 INFO L226 Difference]: Without dead ends: 70075 [2021-12-06 20:28:28,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 398 SyntacticMatches, 8 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=140, Invalid=1120, Unknown=0, NotChecked=0, Total=1260 [2021-12-06 20:28:28,833 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 2729 mSDsluCounter, 4706 mSDsCounter, 0 mSdLazyCounter, 3559 mSolverCounterSat, 715 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2795 SdHoareTripleChecker+Valid, 5675 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 715 IncrementalHoareTripleChecker+Valid, 3559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:28,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2795 Valid, 5675 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [715 Valid, 3559 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-12-06 20:28:28,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70075 states. [2021-12-06 20:28:32,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70075 to 56587. [2021-12-06 20:28:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56587 states, 42807 states have (on average 1.2543509239143131) internal successors, (53695), 43809 states have internal predecessors, (53695), 9028 states have call successors, (9028), 4431 states have call predecessors, (9028), 4751 states have return successors, (10146), 8874 states have call predecessors, (10146), 9027 states have call successors, (10146) [2021-12-06 20:28:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56587 states to 56587 states and 72869 transitions. [2021-12-06 20:28:33,050 INFO L78 Accepts]: Start accepts. Automaton has 56587 states and 72869 transitions. Word has length 191 [2021-12-06 20:28:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:33,051 INFO L470 AbstractCegarLoop]: Abstraction has 56587 states and 72869 transitions. [2021-12-06 20:28:33,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-06 20:28:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 56587 states and 72869 transitions. [2021-12-06 20:28:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-06 20:28:33,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:33,067 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:28:33,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-06 20:28:33,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-06 20:28:33,269 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:33,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:33,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1351674012, now seen corresponding path program 3 times [2021-12-06 20:28:33,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:33,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507553720] [2021-12-06 20:28:33,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:33,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:28:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:28:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:28:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:28:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:28:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:28:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:28:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:28:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 20:28:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 20:28:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 20:28:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 30 proven. 11 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 20:28:33,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:33,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507553720] [2021-12-06 20:28:33,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507553720] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:28:33,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301335367] [2021-12-06 20:28:33,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 20:28:33,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:28:33,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:28:33,959 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:28:33,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-06 20:28:35,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-06 20:28:35,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:28:35,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 72 conjunts are in the unsatisfiable core [2021-12-06 20:28:35,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:28:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 20:28:35,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:28:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-12-06 20:28:36,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301335367] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 20:28:36,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:28:36,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 16] total 33 [2021-12-06 20:28:36,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105206761] [2021-12-06 20:28:36,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:36,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:28:36,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:36,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:28:36,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=947, Unknown=0, NotChecked=0, Total=1056 [2021-12-06 20:28:36,518 INFO L87 Difference]: Start difference. First operand 56587 states and 72869 transitions. Second operand has 11 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-06 20:28:45,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:45,675 INFO L93 Difference]: Finished difference Result 142099 states and 183887 transitions. [2021-12-06 20:28:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:28:45,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 189 [2021-12-06 20:28:45,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:45,894 INFO L225 Difference]: With dead ends: 142099 [2021-12-06 20:28:45,894 INFO L226 Difference]: Without dead ends: 89821 [2021-12-06 20:28:45,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=138, Invalid=1194, Unknown=0, NotChecked=0, Total=1332 [2021-12-06 20:28:45,978 INFO L933 BasicCegarLoop]: 972 mSDtfsCounter, 2481 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 4533 SdHoareTripleChecker+Invalid, 3528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:45,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2522 Valid, 4533 Invalid, 3528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 2838 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-06 20:28:46,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89821 states. [2021-12-06 20:28:51,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89821 to 68813. [2021-12-06 20:28:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68813 states, 52057 states have (on average 1.255258658777878) internal successors, (65345), 53300 states have internal predecessors, (65345), 11026 states have call successors, (11026), 5379 states have call predecessors, (11026), 5729 states have return successors, (12336), 10775 states have call predecessors, (12336), 11025 states have call successors, (12336) [2021-12-06 20:28:51,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68813 states to 68813 states and 88707 transitions. [2021-12-06 20:28:51,413 INFO L78 Accepts]: Start accepts. Automaton has 68813 states and 88707 transitions. Word has length 189 [2021-12-06 20:28:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:51,414 INFO L470 AbstractCegarLoop]: Abstraction has 68813 states and 88707 transitions. [2021-12-06 20:28:51,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-06 20:28:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 68813 states and 88707 transitions. [2021-12-06 20:28:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-06 20:28:51,435 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:51,436 INFO L514 BasicCegarLoop]: trace histogram [10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:28:51,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-06 20:28:51,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-06 20:28:51,638 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:51,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:51,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1817257158, now seen corresponding path program 1 times [2021-12-06 20:28:51,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:51,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187266478] [2021-12-06 20:28:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:51,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:28:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:28:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:28:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:28:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:28:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:28:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 20:28:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 20:28:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 20:28:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:28:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 20:28:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-06 20:28:51,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:51,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187266478] [2021-12-06 20:28:51,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187266478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:28:51,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:28:51,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:28:51,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107560642] [2021-12-06 20:28:51,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:51,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:28:51,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:51,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:28:51,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:28:51,980 INFO L87 Difference]: Start difference. First operand 68813 states and 88707 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:29:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:00,230 INFO L93 Difference]: Finished difference Result 164163 states and 218587 transitions. [2021-12-06 20:29:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:29:00,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 196 [2021-12-06 20:29:00,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:00,511 INFO L225 Difference]: With dead ends: 164163 [2021-12-06 20:29:00,511 INFO L226 Difference]: Without dead ends: 99679 [2021-12-06 20:29:00,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:29:00,619 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 969 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:00,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 2314 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 20:29:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99679 states. [2021-12-06 20:29:06,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99679 to 70346. [2021-12-06 20:29:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70346 states, 53050 states have (on average 1.2530819981149859) internal successors, (66476), 54320 states have internal predecessors, (66476), 11566 states have call successors, (11566), 5379 states have call predecessors, (11566), 5729 states have return successors, (12954), 11288 states have call predecessors, (12954), 11565 states have call successors, (12954) [2021-12-06 20:29:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70346 states to 70346 states and 90996 transitions. [2021-12-06 20:29:06,554 INFO L78 Accepts]: Start accepts. Automaton has 70346 states and 90996 transitions. Word has length 196 [2021-12-06 20:29:06,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:06,555 INFO L470 AbstractCegarLoop]: Abstraction has 70346 states and 90996 transitions. [2021-12-06 20:29:06,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:29:06,555 INFO L276 IsEmpty]: Start isEmpty. Operand 70346 states and 90996 transitions. [2021-12-06 20:29:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-06 20:29:06,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:06,582 INFO L514 BasicCegarLoop]: trace histogram [10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:29:06,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 20:29:06,583 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:06,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash 826720268, now seen corresponding path program 1 times [2021-12-06 20:29:06,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:29:06,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684512951] [2021-12-06 20:29:06,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:06,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:29:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:29:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:29:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:29:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:29:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:29:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:29:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:29:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:29:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:29:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:29:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 20:29:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-06 20:29:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:29:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:29:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 20:29:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-12-06 20:29:06,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:29:06,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684512951] [2021-12-06 20:29:06,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684512951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:06,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:06,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:29:06,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214314550] [2021-12-06 20:29:06,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:06,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:29:06,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:29:06,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:29:06,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:29:06,915 INFO L87 Difference]: Start difference. First operand 70346 states and 90996 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 20:29:14,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:20,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:21,967 INFO L93 Difference]: Finished difference Result 167502 states and 223909 transitions. [2021-12-06 20:29:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:29:21,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 217 [2021-12-06 20:29:21,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:22,258 INFO L225 Difference]: With dead ends: 167502 [2021-12-06 20:29:22,258 INFO L226 Difference]: Without dead ends: 101485 [2021-12-06 20:29:22,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:29:22,369 INFO L933 BasicCegarLoop]: 1086 mSDtfsCounter, 849 mSDsluCounter, 3743 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 470 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 4829 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:22,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 4829 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1433 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-06 20:29:22,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101485 states. [2021-12-06 20:29:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101485 to 70418. [2021-12-06 20:29:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70418 states, 53122 states have (on average 1.252738978201122) internal successors, (66548), 54392 states have internal predecessors, (66548), 11566 states have call successors, (11566), 5379 states have call predecessors, (11566), 5729 states have return successors, (12954), 11288 states have call predecessors, (12954), 11565 states have call successors, (12954) [2021-12-06 20:29:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70418 states to 70418 states and 91068 transitions. [2021-12-06 20:29:28,304 INFO L78 Accepts]: Start accepts. Automaton has 70418 states and 91068 transitions. Word has length 217 [2021-12-06 20:29:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:28,304 INFO L470 AbstractCegarLoop]: Abstraction has 70418 states and 91068 transitions. [2021-12-06 20:29:28,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 20:29:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 70418 states and 91068 transitions. [2021-12-06 20:29:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-06 20:29:28,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:28,334 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:29:28,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 20:29:28,334 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:28,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:28,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1923089219, now seen corresponding path program 1 times [2021-12-06 20:29:28,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:29:28,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866271060] [2021-12-06 20:29:28,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:28,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:29:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:29:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:29:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:29:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:29:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:29:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:29:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:29:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:29:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:29:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:29:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 20:29:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 20:29:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 20:29:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 20:29:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 20:29:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:29:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 20:29:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-06 20:29:28,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:29:28,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866271060] [2021-12-06 20:29:28,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866271060] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:28,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:28,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-06 20:29:28,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719531302] [2021-12-06 20:29:28,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:28,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 20:29:28,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:29:28,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 20:29:28,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-12-06 20:29:28,735 INFO L87 Difference]: Start difference. First operand 70418 states and 91068 transitions. Second operand has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (22), 9 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:29:40,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:48,571 INFO L93 Difference]: Finished difference Result 220704 states and 309331 transitions. [2021-12-06 20:29:48,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-06 20:29:48,572 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (22), 9 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 222 [2021-12-06 20:29:48,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:49,091 INFO L225 Difference]: With dead ends: 220704 [2021-12-06 20:29:49,091 INFO L226 Difference]: Without dead ends: 154615 [2021-12-06 20:29:49,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=236, Invalid=756, Unknown=0, NotChecked=0, Total=992 [2021-12-06 20:29:49,219 INFO L933 BasicCegarLoop]: 1411 mSDtfsCounter, 2307 mSDsluCounter, 9014 mSDsCounter, 0 mSdLazyCounter, 3869 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2480 SdHoareTripleChecker+Valid, 10425 SdHoareTripleChecker+Invalid, 5341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 3869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:49,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2480 Valid, 10425 Invalid, 5341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 3869 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2021-12-06 20:29:49,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154615 states. [2021-12-06 20:29:56,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154615 to 70958. [2021-12-06 20:29:56,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70958 states, 53602 states have (on average 1.2504757285175927) internal successors, (67028), 54812 states have internal predecessors, (67028), 11566 states have call successors, (11566), 5379 states have call predecessors, (11566), 5789 states have return successors, (13254), 11408 states have call predecessors, (13254), 11565 states have call successors, (13254) [2021-12-06 20:29:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70958 states to 70958 states and 91848 transitions. [2021-12-06 20:29:56,768 INFO L78 Accepts]: Start accepts. Automaton has 70958 states and 91848 transitions. Word has length 222 [2021-12-06 20:29:56,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:56,768 INFO L470 AbstractCegarLoop]: Abstraction has 70958 states and 91848 transitions. [2021-12-06 20:29:56,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (22), 9 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:29:56,768 INFO L276 IsEmpty]: Start isEmpty. Operand 70958 states and 91848 transitions. [2021-12-06 20:29:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-06 20:29:56,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:56,797 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:29:56,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 20:29:56,798 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:56,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1863481750, now seen corresponding path program 1 times [2021-12-06 20:29:56,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:29:56,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527821455] [2021-12-06 20:29:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:56,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:29:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:29:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:29:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:29:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:56,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:29:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:56,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:29:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:56,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:29:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:29:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:29:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:29:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:29:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 20:29:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 20:29:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 20:29:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 20:29:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 20:29:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:29:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 20:29:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-06 20:29:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:57,169 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-06 20:29:57,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:29:57,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527821455] [2021-12-06 20:29:57,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527821455] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:29:57,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708514625] [2021-12-06 20:29:57,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:57,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:29:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:29:57,170 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:29:57,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-06 20:29:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:58,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 3162 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:29:58,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-12-06 20:29:58,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:58,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708514625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:58,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:29:58,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-12-06 20:29:58,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126920649] [2021-12-06 20:29:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:58,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:29:58,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:29:58,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:29:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:29:58,140 INFO L87 Difference]: Start difference. First operand 70958 states and 91848 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:30:06,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:06,125 INFO L93 Difference]: Finished difference Result 158650 states and 209167 transitions. [2021-12-06 20:30:06,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:30:06,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 223 [2021-12-06 20:30:06,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:06,356 INFO L225 Difference]: With dead ends: 158650 [2021-12-06 20:30:06,356 INFO L226 Difference]: Without dead ends: 92021 [2021-12-06 20:30:06,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:30:06,461 INFO L933 BasicCegarLoop]: 1181 mSDtfsCounter, 234 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:06,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2083 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:30:06,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92021 states. [2021-12-06 20:30:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92021 to 71078. [2021-12-06 20:30:13,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71078 states, 53722 states have (on average 1.2499162354342728) internal successors, (67148), 54932 states have internal predecessors, (67148), 11566 states have call successors, (11566), 5379 states have call predecessors, (11566), 5789 states have return successors, (13254), 11408 states have call predecessors, (13254), 11565 states have call successors, (13254) [2021-12-06 20:30:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71078 states to 71078 states and 91968 transitions. [2021-12-06 20:30:13,255 INFO L78 Accepts]: Start accepts. Automaton has 71078 states and 91968 transitions. Word has length 223 [2021-12-06 20:30:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:30:13,255 INFO L470 AbstractCegarLoop]: Abstraction has 71078 states and 91968 transitions. [2021-12-06 20:30:13,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:30:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 71078 states and 91968 transitions. [2021-12-06 20:30:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-06 20:30:13,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:30:13,285 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:30:13,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-06 20:30:13,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-12-06 20:30:13,487 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:30:13,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:13,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1115920591, now seen corresponding path program 1 times [2021-12-06 20:30:13,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:30:13,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571325206] [2021-12-06 20:30:13,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:30:13,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:30:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:30:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:30:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:30:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:30:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:30:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:30:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:30:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:30:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:30:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:30:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:30:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:30:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 20:30:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:30:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 20:30:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 20:30:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 20:30:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 20:30:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:30:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:30:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-06 20:30:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 20:30:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-06 20:30:13,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:30:13,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571325206] [2021-12-06 20:30:13,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571325206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:30:13,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:30:13,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 20:30:13,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590698481] [2021-12-06 20:30:13,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:30:13,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:30:13,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:30:13,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:30:13,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:30:13,950 INFO L87 Difference]: Start difference. First operand 71078 states and 91968 transitions. Second operand has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 20:30:26,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:26,383 INFO L93 Difference]: Finished difference Result 179547 states and 246703 transitions. [2021-12-06 20:30:26,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 20:30:26,384 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 225 [2021-12-06 20:30:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:26,717 INFO L225 Difference]: With dead ends: 179547 [2021-12-06 20:30:26,717 INFO L226 Difference]: Without dead ends: 112798 [2021-12-06 20:30:26,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-12-06 20:30:26,834 INFO L933 BasicCegarLoop]: 1025 mSDtfsCounter, 1222 mSDsluCounter, 5111 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:26,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 6136 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-06 20:30:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112798 states. [2021-12-06 20:30:34,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112798 to 71498. [2021-12-06 20:30:34,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71498 states, 54082 states have (on average 1.2482526533782035) internal successors, (67508), 55172 states have internal predecessors, (67508), 11566 states have call successors, (11566), 5379 states have call predecessors, (11566), 5849 states have return successors, (13374), 11588 states have call predecessors, (13374), 11565 states have call successors, (13374) [2021-12-06 20:30:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71498 states to 71498 states and 92448 transitions. [2021-12-06 20:30:34,298 INFO L78 Accepts]: Start accepts. Automaton has 71498 states and 92448 transitions. Word has length 225 [2021-12-06 20:30:34,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:30:34,299 INFO L470 AbstractCegarLoop]: Abstraction has 71498 states and 92448 transitions. [2021-12-06 20:30:34,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 20:30:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 71498 states and 92448 transitions. [2021-12-06 20:30:34,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-06 20:30:34,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:30:34,328 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:30:34,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 20:30:34,329 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:30:34,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:34,329 INFO L85 PathProgramCache]: Analyzing trace with hash -957798113, now seen corresponding path program 1 times [2021-12-06 20:30:34,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:30:34,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159954458] [2021-12-06 20:30:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:30:34,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:30:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:30:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:30:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:30:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:30:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 20:30:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:30:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 20:30:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 20:30:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:30:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 20:30:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 20:30:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 20:30:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 20:30:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:30:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:30:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:30:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 20:30:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:30:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 20:30:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:30:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:30:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 20:30:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:30:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-12-06 20:30:34,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:30:34,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159954458] [2021-12-06 20:30:34,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159954458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:30:34,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:30:34,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 20:30:34,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92826602] [2021-12-06 20:30:34,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:30:34,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:30:34,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:30:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:30:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:30:34,669 INFO L87 Difference]: Start difference. First operand 71498 states and 92448 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-06 20:30:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:57,754 INFO L93 Difference]: Finished difference Result 277365 states and 386894 transitions. [2021-12-06 20:30:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-06 20:30:57,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 234 [2021-12-06 20:30:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:58,427 INFO L225 Difference]: With dead ends: 277365 [2021-12-06 20:30:58,427 INFO L226 Difference]: Without dead ends: 205885 [2021-12-06 20:30:58,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2021-12-06 20:30:58,590 INFO L933 BasicCegarLoop]: 1157 mSDtfsCounter, 4060 mSDsluCounter, 3777 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 2530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4173 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 5385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2530 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:58,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4173 Valid, 4934 Invalid, 5385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2530 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-06 20:30:58,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205885 states. [2021-12-06 20:31:08,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205885 to 71602. [2021-12-06 20:31:08,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71602 states, 54186 states have (on average 1.247776178348651) internal successors, (67612), 55276 states have internal predecessors, (67612), 11566 states have call successors, (11566), 5379 states have call predecessors, (11566), 5849 states have return successors, (13374), 11588 states have call predecessors, (13374), 11565 states have call successors, (13374) [2021-12-06 20:31:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71602 states to 71602 states and 92552 transitions. [2021-12-06 20:31:08,573 INFO L78 Accepts]: Start accepts. Automaton has 71602 states and 92552 transitions. Word has length 234 [2021-12-06 20:31:08,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:31:08,574 INFO L470 AbstractCegarLoop]: Abstraction has 71602 states and 92552 transitions. [2021-12-06 20:31:08,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-06 20:31:08,574 INFO L276 IsEmpty]: Start isEmpty. Operand 71602 states and 92552 transitions. [2021-12-06 20:31:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-06 20:31:08,605 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:31:08,605 INFO L514 BasicCegarLoop]: trace histogram [10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:31:08,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 20:31:08,605 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:31:08,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:31:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1644048110, now seen corresponding path program 1 times [2021-12-06 20:31:08,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:31:08,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413489055] [2021-12-06 20:31:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:31:08,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:31:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:31:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:31:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:31:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:31:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:31:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:31:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:31:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-06 20:31:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:31:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 20:31:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 20:31:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 20:31:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-06 20:31:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:09,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:31:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:09,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 20:31:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-06 20:31:09,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:31:09,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413489055] [2021-12-06 20:31:09,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413489055] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:31:09,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660583130] [2021-12-06 20:31:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:31:09,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:31:09,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:31:09,077 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:31:09,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-06 20:31:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:10,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 3102 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:31:10,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:31:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-12-06 20:31:10,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:31:10,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660583130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:31:10,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:31:10,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-12-06 20:31:10,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66027673] [2021-12-06 20:31:10,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:31:10,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:31:10,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:31:10,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:31:10,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:31:10,155 INFO L87 Difference]: Start difference. First operand 71602 states and 92552 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-06 20:31:17,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:31:17,142 INFO L93 Difference]: Finished difference Result 138871 states and 179853 transitions. [2021-12-06 20:31:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:31:17,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 227 [2021-12-06 20:31:17,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:31:17,322 INFO L225 Difference]: With dead ends: 138871 [2021-12-06 20:31:17,322 INFO L226 Difference]: Without dead ends: 71610 [2021-12-06 20:31:17,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:31:17,423 INFO L933 BasicCegarLoop]: 1389 mSDtfsCounter, 688 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:31:17,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 2070 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:31:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71610 states. [2021-12-06 20:31:24,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71610 to 71602. [2021-12-06 20:31:24,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71602 states, 54186 states have (on average 1.245303214852545) internal successors, (67478), 55276 states have internal predecessors, (67478), 11566 states have call successors, (11566), 5379 states have call predecessors, (11566), 5849 states have return successors, (13374), 11588 states have call predecessors, (13374), 11565 states have call successors, (13374) [2021-12-06 20:31:24,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71602 states to 71602 states and 92418 transitions. [2021-12-06 20:31:24,676 INFO L78 Accepts]: Start accepts. Automaton has 71602 states and 92418 transitions. Word has length 227 [2021-12-06 20:31:24,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:31:24,677 INFO L470 AbstractCegarLoop]: Abstraction has 71602 states and 92418 transitions. [2021-12-06 20:31:24,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-06 20:31:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 71602 states and 92418 transitions. [2021-12-06 20:31:24,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-06 20:31:24,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:31:24,707 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-06 20:31:24,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-06 20:31:24,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-12-06 20:31:24,909 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:31:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:31:24,911 INFO L85 PathProgramCache]: Analyzing trace with hash 343798632, now seen corresponding path program 1 times [2021-12-06 20:31:24,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:31:24,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847394684] [2021-12-06 20:31:24,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:31:24,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:31:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:31:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:31:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 20:31:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 20:31:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:31:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 20:31:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 20:31:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 20:31:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 20:31:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:31:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:31:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 20:31:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 20:31:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:31:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:31:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-06 20:31:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-12-06 20:31:25,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:31:25,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847394684] [2021-12-06 20:31:25,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847394684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:31:25,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:31:25,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 20:31:25,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361616539] [2021-12-06 20:31:25,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:31:25,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:31:25,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:31:25,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:31:25,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:31:25,308 INFO L87 Difference]: Start difference. First operand 71602 states and 92418 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 20:31:34,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:37,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:43,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:31:43,105 INFO L93 Difference]: Finished difference Result 164330 states and 224732 transitions. [2021-12-06 20:31:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:31:43,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 237 [2021-12-06 20:31:43,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:31:43,369 INFO L225 Difference]: With dead ends: 164330 [2021-12-06 20:31:43,369 INFO L226 Difference]: Without dead ends: 92745 [2021-12-06 20:31:43,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-12-06 20:31:43,482 INFO L933 BasicCegarLoop]: 787 mSDtfsCounter, 1055 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 722 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:31:43,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 3555 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 2010 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2021-12-06 20:31:43,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92745 states. [2021-12-06 20:31:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92745 to 49800. [2021-12-06 20:31:49,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49800 states, 37584 states have (on average 1.251729459344402) internal successors, (47045), 38396 states have internal predecessors, (47045), 8094 states have call successors, (8094), 3768 states have call predecessors, (8094), 4121 states have return successors, (9387), 8125 states have call predecessors, (9387), 8093 states have call successors, (9387) [2021-12-06 20:31:49,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49800 states to 49800 states and 64526 transitions. [2021-12-06 20:31:49,978 INFO L78 Accepts]: Start accepts. Automaton has 49800 states and 64526 transitions. Word has length 237 [2021-12-06 20:31:49,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:31:49,978 INFO L470 AbstractCegarLoop]: Abstraction has 49800 states and 64526 transitions. [2021-12-06 20:31:49,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 20:31:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 49800 states and 64526 transitions. [2021-12-06 20:31:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-06 20:31:50,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:31:50,003 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:31:50,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 20:31:50,003 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:31:50,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:31:50,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1427555977, now seen corresponding path program 1 times [2021-12-06 20:31:50,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:31:50,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507782238] [2021-12-06 20:31:50,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:31:50,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:31:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:31:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:31:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:31:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:31:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:31:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 20:31:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 20:31:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:31:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 20:31:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:31:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 20:31:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 20:31:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 20:31:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-06 20:31:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:31:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 20:31:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 20:31:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 20:31:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 30 proven. 11 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-06 20:31:50,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:31:50,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507782238] [2021-12-06 20:31:50,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507782238] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:31:50,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770305279] [2021-12-06 20:31:50,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:31:50,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:31:50,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:31:50,731 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:31:50,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-06 20:31:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:31:51,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 3202 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 20:31:51,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:31:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-06 20:31:52,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:31:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-06 20:31:52,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770305279] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:31:52,724 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:31:52,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 35 [2021-12-06 20:31:52,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952651831] [2021-12-06 20:31:52,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:31:52,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-12-06 20:31:52,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:31:52,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-12-06 20:31:52,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1056, Unknown=0, NotChecked=0, Total=1190 [2021-12-06 20:31:52,726 INFO L87 Difference]: Start difference. First operand 49800 states and 64526 transitions. Second operand has 35 states, 35 states have (on average 6.171428571428572) internal successors, (216), 29 states have internal predecessors, (216), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-06 20:32:45,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:32:45,087 INFO L93 Difference]: Finished difference Result 125980 states and 171653 transitions. [2021-12-06 20:32:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-12-06 20:32:45,088 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 6.171428571428572) internal successors, (216), 29 states have internal predecessors, (216), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 231 [2021-12-06 20:32:45,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:32:45,326 INFO L225 Difference]: With dead ends: 125980 [2021-12-06 20:32:45,327 INFO L226 Difference]: Without dead ends: 76242 [2021-12-06 20:32:45,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=752, Invalid=4650, Unknown=0, NotChecked=0, Total=5402 [2021-12-06 20:32:45,418 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 1552 mSDsluCounter, 13045 mSDsCounter, 0 mSdLazyCounter, 7203 mSolverCounterSat, 1025 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 13847 SdHoareTripleChecker+Invalid, 8228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1025 IncrementalHoareTripleChecker+Valid, 7203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:32:45,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1598 Valid, 13847 Invalid, 8228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1025 Valid, 7203 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2021-12-06 20:32:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76242 states. [2021-12-06 20:32:51,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76242 to 49896. [2021-12-06 20:32:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49896 states, 37680 states have (on average 1.251088110403397) internal successors, (47141), 38492 states have internal predecessors, (47141), 8094 states have call successors, (8094), 3768 states have call predecessors, (8094), 4121 states have return successors, (9387), 8125 states have call predecessors, (9387), 8093 states have call successors, (9387) [2021-12-06 20:32:51,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49896 states to 49896 states and 64622 transitions. [2021-12-06 20:32:51,968 INFO L78 Accepts]: Start accepts. Automaton has 49896 states and 64622 transitions. Word has length 231 [2021-12-06 20:32:51,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:32:51,969 INFO L470 AbstractCegarLoop]: Abstraction has 49896 states and 64622 transitions. [2021-12-06 20:32:51,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.171428571428572) internal successors, (216), 29 states have internal predecessors, (216), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-06 20:32:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 49896 states and 64622 transitions. [2021-12-06 20:32:51,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-06 20:32:51,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:32:51,994 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:32:52,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-12-06 20:32:52,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-12-06 20:32:52,196 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:32:52,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:32:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash -912758173, now seen corresponding path program 2 times [2021-12-06 20:32:52,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:32:52,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719743270] [2021-12-06 20:32:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:32:52,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:32:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:32:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:32:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:32:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:32:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 20:32:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 20:32:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:32:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 20:32:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:32:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:32:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:32:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:32:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-06 20:32:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:32:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:32:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 20:32:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-06 20:32:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 20:32:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-06 20:32:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:32:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 20:32:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 20:32:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-06 20:32:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:32:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 20:32:53,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:32:53,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719743270] [2021-12-06 20:32:53,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719743270] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:32:53,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418371475] [2021-12-06 20:32:53,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:32:53,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:32:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:32:53,060 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:32:53,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-06 20:32:56,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:32:56,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:32:56,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 3221 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 20:32:56,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:32:56,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-12-06 20:32:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 20:32:56,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:32:57,521 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 20:32:57,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418371475] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:32:57,522 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:32:57,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 13] total 41 [2021-12-06 20:32:57,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955671855] [2021-12-06 20:32:57,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:32:57,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-06 20:32:57,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:32:57,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-06 20:32:57,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1401, Unknown=0, NotChecked=0, Total=1640 [2021-12-06 20:32:57,524 INFO L87 Difference]: Start difference. First operand 49896 states and 64622 transitions. Second operand has 41 states, 41 states have (on average 5.390243902439025) internal successors, (221), 35 states have internal predecessors, (221), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-06 20:33:15,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:20,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:33:20,070 INFO L93 Difference]: Finished difference Result 115420 states and 157271 transitions. [2021-12-06 20:33:20,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 20:33:20,070 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.390243902439025) internal successors, (221), 35 states have internal predecessors, (221), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 232 [2021-12-06 20:33:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:33:20,256 INFO L225 Difference]: With dead ends: 115420 [2021-12-06 20:33:20,256 INFO L226 Difference]: Without dead ends: 65586 [2021-12-06 20:33:20,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=409, Invalid=2783, Unknown=0, NotChecked=0, Total=3192 [2021-12-06 20:33:20,342 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 507 mSDsluCounter, 12005 mSDsCounter, 0 mSdLazyCounter, 6782 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 12801 SdHoareTripleChecker+Invalid, 7102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 6782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:33:20,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 12801 Invalid, 7102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 6782 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2021-12-06 20:33:20,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65586 states. [2021-12-06 20:33:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65586 to 49992. [2021-12-06 20:33:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49992 states, 37776 states have (on average 1.2504500211774672) internal successors, (47237), 38588 states have internal predecessors, (47237), 8094 states have call successors, (8094), 3768 states have call predecessors, (8094), 4121 states have return successors, (9387), 8125 states have call predecessors, (9387), 8093 states have call successors, (9387) [2021-12-06 20:33:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49992 states to 49992 states and 64718 transitions. [2021-12-06 20:33:26,439 INFO L78 Accepts]: Start accepts. Automaton has 49992 states and 64718 transitions. Word has length 232 [2021-12-06 20:33:26,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:33:26,439 INFO L470 AbstractCegarLoop]: Abstraction has 49992 states and 64718 transitions. [2021-12-06 20:33:26,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.390243902439025) internal successors, (221), 35 states have internal predecessors, (221), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-06 20:33:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 49992 states and 64718 transitions. [2021-12-06 20:33:26,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-06 20:33:26,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:33:26,464 INFO L514 BasicCegarLoop]: trace histogram [11, 5, 5, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:33:26,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-12-06 20:33:26,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:33:26,666 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:33:26,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:33:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1463438411, now seen corresponding path program 3 times [2021-12-06 20:33:26,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:33:26,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118773197] [2021-12-06 20:33:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:33:26,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:33:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:33:27,020 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:33:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:33:27,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:33:27,603 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 20:33:27,604 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:33:27,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-06 20:33:27,608 INFO L732 BasicCegarLoop]: Path program histogram: [3, 3, 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] [2021-12-06 20:33:27,611 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:33:27,668 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,669 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,670 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,671 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,672 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,673 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,674 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,675 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,676 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,677 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,678 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,679 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,680 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,681 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,682 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,683 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,684 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,685 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,686 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,687 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,688 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2021-12-06 20:33:27,689 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2021-12-06 20:33:27,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:33:27 BoogieIcfgContainer [2021-12-06 20:33:27,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:33:27,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:33:27,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:33:27,844 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:33:27,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:25:46" (3/4) ... [2021-12-06 20:33:27,846 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:33:27,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:33:27,847 INFO L158 Benchmark]: Toolchain (without parser) took 466011.43ms. Allocated memory was 111.1MB in the beginning and 7.2GB in the end (delta: 7.1GB). Free memory was 84.2MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. [2021-12-06 20:33:27,847 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:33:27,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1352.10ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.1MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2021-12-06 20:33:27,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.32ms. Allocated memory is still 167.8MB. Free memory was 82.7MB in the beginning and 109.1MB in the end (delta: -26.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-12-06 20:33:27,848 INFO L158 Benchmark]: Boogie Preprocessor took 110.89ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 96.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 20:33:27,848 INFO L158 Benchmark]: RCFGBuilder took 2883.30ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 96.1MB in the beginning and 135.6MB in the end (delta: -39.5MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. [2021-12-06 20:33:27,848 INFO L158 Benchmark]: TraceAbstraction took 461526.26ms. Allocated memory was 220.2MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 134.6MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 4.2GB. Max. memory is 16.1GB. [2021-12-06 20:33:27,848 INFO L158 Benchmark]: Witness Printer took 2.78ms. Allocated memory is still 7.2GB. Free memory is still 2.9GB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:33:27,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1352.10ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.1MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.32ms. Allocated memory is still 167.8MB. Free memory was 82.7MB in the beginning and 109.1MB in the end (delta: -26.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.89ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 96.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2883.30ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 96.1MB in the beginning and 135.6MB in the end (delta: -39.5MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. * TraceAbstraction took 461526.26ms. Allocated memory was 220.2MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 134.6MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 4.2GB. Max. memory is 16.1GB. * Witness Printer took 2.78ms. Allocated memory is still 7.2GB. Free memory is still 2.9GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#t~mem449#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled * 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: 5673]: 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 6743, overapproximation of bitwiseOr at line 6275. Possible FailurePath: [L5696] int LDV_IN_INTERRUPT = 1; [L5697] struct usb_interface *ems_usb_driver_group1 ; [L5698] int ldv_state_variable_2 ; [L5699] struct net_device *ems_usb_netdev_ops_group1 ; [L5700] int ref_cnt ; [L5701] int ldv_state_variable_1 ; [L5702] int usb_counter ; [L5703] int ldv_state_variable_0 ; [L5884-L5886] static struct usb_device_id ems_usb_table[2U] = { {3U, 4822U, 1092U, (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}}; [L5887] struct usb_device_id const __mod_usb_device_table ; [L6540-L6543] static struct net_device_ops const ems_usb_netdev_ops = {0, 0, & ems_usb_open, & ems_usb_close, & ems_usb_start_xmit, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6544-L6545] static struct can_bittiming_const const ems_usb_bittiming_const = {{'e', 'm', 's', '_', 'u', 's', 'b', '\000'}, 1U, 16U, 1U, 8U, 4U, 1U, 64U, 1U}; [L6733-L6738] static struct usb_driver ems_usb_driver = {"ems_usb", & ems_usb_probe, & ems_usb_disconnect, 0, 0, 0, 0, 0, 0, (struct usb_device_id const *)(& ems_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, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L6754] int ldv_retval_2 ; [L6755] int ldv_retval_0 ; [L6759] int ldv_retval_1 ; [L6761] int ldv_retval_3 ; [L7115] int INTERF_STATE = 0; [L7116] int SERIAL_STATE = 0; [L7117] void *usb_intfdata = 0; [L7118] struct urb *usb_urb = 0; [L7119] struct usb_device *usb_dev = 0; [L7120] int dev_counter = 0; [L7121] int completeFnIntCounter = 0; [L7122] int completeFnBulkCounter = 0; [L7123] void (*completeFnInt)(struct urb * ) ; [L7124] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6782] struct usb_device_id *ldvarg0 ; [L6783] void *tmp ; [L6784] struct sk_buff *ldvarg1 ; [L6785] void *tmp___0 ; [L6786] int tmp___1 ; [L6787] int tmp___2 ; [L6788] int tmp___3 ; [L6789] int tmp___4 ; 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6791] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5638] void *p ; [L5639] void *tmp ; [L5640] int tmp___0 ; [L5642] tmp___0 = __VERIFIER_nondet_int() [L5643] COND TRUE tmp___0 != 0 [L5644] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6791] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6791] tmp = ldv_zalloc(32UL) [L6792] ldvarg0 = (struct usb_device_id *)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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6793] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5638] void *p ; [L5639] void *tmp ; [L5640] int tmp___0 ; [L5642] tmp___0 = __VERIFIER_nondet_int() [L5643] COND TRUE tmp___0 != 0 [L5644] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, size=240, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6793] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(240UL)={0:0}, ldvarg0={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6793] tmp___0 = ldv_zalloc(240UL) [L6794] ldvarg1 = (struct sk_buff *)tmp___0 [L6795] FCALL ldv_initialize() [L6796] ldv_state_variable_1 = 0 [L6797] ref_cnt = 0 [L6798] ldv_state_variable_0 = 1 [L6799] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6801] tmp___1 = __VERIFIER_nondet_int() [L6803] case 0: [L6833] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6834] COND TRUE ldv_state_variable_0 != 0 [L6835] tmp___3 = __VERIFIER_nondet_int() [L6837] case 0: [L6845] 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, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6846] COND TRUE ldv_state_variable_0 == 1 [L6847] CALL, EXPR ems_usb_driver_init() [L6741] int tmp ; [L6743] CALL, EXPR ldv_usb_register_driver_23(& ems_usb_driver, & __this_module, "ems_usb") [L7087] ldv_func_ret_type ldv_func_res ; [L7088] int tmp ; [L7090] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L7474] return __VERIFIER_nondet_int(); [L7090] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L7090] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L7091] ldv_func_res = tmp [L7092] ldv_state_variable_1 = 1 [L7093] usb_counter = 0 [L7094] CALL ldv_usb_driver_1() [L6764] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6766] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5638] void *p ; [L5639] void *tmp ; [L5640] int tmp___0 ; [L5642] tmp___0 = __VERIFIER_nondet_int() [L5643] COND TRUE tmp___0 != 0 [L5644] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, size=1520, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6766] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_zalloc(1520UL)={0:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6766] tmp = ldv_zalloc(1520UL) [L6767] ems_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7094] RET ldv_usb_driver_1() [L7095] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, ldv_func_arg1={36:0}, ldv_func_arg1={36:0}, ldv_func_arg2={5004:5019}, ldv_func_arg2={5004:5019}, ldv_func_arg3={32:0}, ldv_func_arg3={32:0}, 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_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6743] RET, EXPR ldv_usb_register_driver_23(& ems_usb_driver, & __this_module, "ems_usb") [L6743] tmp = ldv_usb_register_driver_23(& ems_usb_driver, & __this_module, "ems_usb") [L6744] return (tmp); 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6847] RET, EXPR ems_usb_driver_init() [L6847] ldv_retval_1 = ems_usb_driver_init() [L6848] COND TRUE ldv_retval_1 == 0 [L6849] ldv_state_variable_0 = 3 [L6850] ldv_state_variable_2 = 1 [L6851] CALL ldv_net_device_ops_2() [L6773] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6775] CALL, EXPR ldv_zalloc(3136UL) 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5638] void *p ; [L5639] void *tmp ; [L5640] int tmp___0 ; [L5642] tmp___0 = __VERIFIER_nondet_int() [L5643] COND TRUE tmp___0 != 0 [L5644] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=3136, \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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, size=3136, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6775] RET, EXPR ldv_zalloc(3136UL) 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(3136UL)={0:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6775] tmp = ldv_zalloc(3136UL) [L6776] ems_usb_netdev_ops_group1 = (struct net_device *)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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6851] RET ldv_net_device_ops_2() [L6854] COND FALSE !(ldv_retval_1 != 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6801] tmp___1 = __VERIFIER_nondet_int() [L6803] case 0: [L6833] case 1: [L6869] case 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6870] COND TRUE ldv_state_variable_2 != 0 [L6871] tmp___4 = __VERIFIER_nondet_int() [L6873] case 0: [L6880] case 1: [L6890] case 2: [L6897] case 3: 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=3, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6898] COND TRUE ldv_state_variable_2 == 1 [L6899] CALL, EXPR ldv_ndo_init_2() [L7409] return __VERIFIER_nondet_int(); [L6899] RET, EXPR ldv_ndo_init_2() [L6899] ldv_retval_2 = ldv_ndo_init_2() [L6900] COND TRUE ldv_retval_2 == 0 [L6901] ldv_state_variable_2 = 2 [L6902] usb_counter = usb_counter + 1 [L6903] ref_cnt = ref_cnt + 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=3, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6801] tmp___1 = __VERIFIER_nondet_int() [L6803] case 0: [L6833] case 1: [L6869] case 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=3, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6870] COND TRUE ldv_state_variable_2 != 0 [L6871] tmp___4 = __VERIFIER_nondet_int() [L6873] case 0: [L6880] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=1, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6881] COND TRUE ldv_state_variable_2 == 2 [L6882] CALL, EXPR ems_usb_open(ems_usb_netdev_ops_group1) [L6362] struct ems_usb *dev ; [L6363] void *tmp ; [L6364] int err ; 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6366] CALL, EXPR netdev_priv((struct net_device const *)netdev) 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:0}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5718] return ((void *)dev + 3136U); VAL [={0:0}, ={0:0}, \result={0:3136}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:0}, dev={0:0}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6366] RET, EXPR netdev_priv((struct net_device const *)netdev) 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, netdev_priv((struct net_device const *)netdev)={0:3136}, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6366] tmp = netdev_priv((struct net_device const *)netdev) [L6367] dev = (struct ems_usb *)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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:3136}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6368] CALL, EXPR ems_usb_write_mode(dev, 1) VAL [={0:0}, ={0:0}, \old(mode)=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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6217] int tmp ; [L6219] dev->active_params.msg.can_params.cc_params.sja1000.mode = mode VAL [={0:0}, ={0:0}, \old(mode)=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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, mode=1, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6220] CALL, EXPR ems_usb_command_msg(dev, & dev->active_params) 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, msg={0:4040}, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6200] int actual_length ; [L6201] size_t __len ; [L6202] void *__ret ; [L6203] unsigned int tmp ; [L6204] int tmp___0 ; [L6206] EXPR msg->length [L6206] __len = (size_t )((int )msg->length + 11) [L6207] EXPR dev->tx_msg_buffer [L6207] EXPR, FCALL memcpy((void *)dev->tx_msg_buffer + 4U, (void const *)msg, __len) [L6207] __ret = memcpy((void *)dev->tx_msg_buffer + 4U, (void const *)msg, __len) [L6208] EXPR dev->tx_msg_buffer [L6208] FCALL memset((void *)dev->tx_msg_buffer, 0, 4UL) [L6209] EXPR dev->udev VAL [={0:0}, ={0:0}, __len=11, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __ret={0:4040}, __this_module={5004:5019}, actual_length={37:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4863:5056}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, msg={0:4040}, msg={0:4040}, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6209] CALL, EXPR __create_pipe(dev->udev, 2U) VAL [={0:0}, ={0:0}, \old(endpoint)=2, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={4863:5056}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5576] EXPR dev->devnum [L5576] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6209] RET, EXPR __create_pipe(dev->udev, 2U) VAL [={0:0}, ={0:0}, __create_pipe(dev->udev, 2U)=5046, __len=11, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __ret={0:4040}, __this_module={5004:5019}, actual_length={37:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4863:5056}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, msg={0:4040}, msg={0:4040}, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6209] tmp = __create_pipe(dev->udev, 2U) [L6210] EXPR dev->udev [L6210] EXPR dev->tx_msg_buffer [L6211] EXPR msg->length [L6210-L6211] CALL, EXPR usb_bulk_msg(dev->udev, tmp | 3221225472U, (void *)dev->tx_msg_buffer, (int )msg->length + 15, & actual_length, 1000) [L7461] return __VERIFIER_nondet_int(); [L6210-L6211] RET, EXPR usb_bulk_msg(dev->udev, tmp | 3221225472U, (void *)dev->tx_msg_buffer, (int )msg->length + 15, & actual_length, 1000) [L6210-L6211] tmp___0 = usb_bulk_msg(dev->udev, tmp | 3221225472U, (void *)dev->tx_msg_buffer, (int )msg->length + 15, & actual_length, 1000) [L6212] return (tmp___0); [L6212] return (tmp___0); VAL [={0:0}, ={0:0}, \result=0, __len=11, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __ret={0:4040}, __this_module={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, msg={0:4040}, msg={0:4040}, ref_cnt=1, SERIAL_STATE=0, tmp=5046, tmp___0=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6220] RET, EXPR ems_usb_command_msg(dev, & dev->active_params) VAL [={0:0}, ={0:0}, \old(mode)=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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_command_msg(dev, & dev->active_params)=0, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, mode=1, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6220] tmp = ems_usb_command_msg(dev, & dev->active_params) [L6221] return (tmp); VAL [={0:0}, ={0:0}, \old(mode)=1, \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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, mode=1, ref_cnt=1, SERIAL_STATE=0, tmp=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6368] RET, EXPR ems_usb_write_mode(dev, 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, ems_usb_write_mode(dev, 1)=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:3136}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6368] err = ems_usb_write_mode(dev, 1) [L6369] COND FALSE !(err != 0) [L6373] CALL, EXPR open_candev(netdev) [L7440] return __VERIFIER_nondet_int(); [L6373] RET, EXPR open_candev(netdev) [L6373] err = open_candev(netdev) [L6374] COND FALSE !(err != 0) [L6378] CALL, EXPR ems_usb_start(dev) [L6239] struct net_device *netdev ; [L6240] int err ; [L6241] int i ; [L6242] struct urb *urb ; [L6243] u8 *buf ; [L6244] void *tmp ; [L6245] unsigned int tmp___0 ; [L6246] unsigned int tmp___1 ; [L6248] EXPR dev->netdev [L6248] netdev = dev->netdev [L6249] EXPR dev->intr_in_buffer [L6249] *(dev->intr_in_buffer) = 0U [L6250] dev->free_slots = 15U [L6251] i = 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6287] COND TRUE i <= 9 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6254] urb = (struct urb *)0 [L6255] buf = (u8 *)0U [L6256] CALL, EXPR ldv_usb_alloc_urb_5(0, 208U) [L6971] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, 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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, mem_flags=208, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6973] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7147] struct urb *value ; [L7148] void *tmp ; [L7149] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7151] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5621] void *p ; [L5622] void *tmp ; [L5623] int tmp___0 ; [L5625] tmp___0 = __VERIFIER_nondet_int() [L5626] COND FALSE !(tmp___0 != 0) [L5629] tmp = malloc(size) [L5630] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, p={-18446744073709551615:0}, ref_cnt=1, SERIAL_STATE=0, size=184, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5631] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5617] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5631] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, p={-18446744073709551615:0}, ref_cnt=1, SERIAL_STATE=0, size=184, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5632] return (p); VAL [={0:0}, ={0:0}, \old(size)=184, \old(usb_urb)=0, \old(usb_urb)=0, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, p={-18446744073709551615:0}, ref_cnt=1, SERIAL_STATE=0, size=184, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7151] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct urb))={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7151] tmp = ldv_malloc(sizeof(struct urb)) [L7152] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}, value={-18446744073709551615:0}] [L7153] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5655] int tmp ; [L5657] tmp = __VERIFIER_nondet_int() [L5658] return (tmp); VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, \result=38, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, tmp=38, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7153] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_undef_int()=38, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}, value={-18446744073709551615:0}] [L7153] tmp___0 = ldv_undef_int() [L7154] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551615:0}, tmp___0=38, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}, value={-18446744073709551615:0}] [L7155] COND TRUE (unsigned long )value != (unsigned long )((struct urb *)0) [L7156] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551615:0}, tmp___0=38, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}, value={-18446744073709551615:0}] [L7161] return (usb_urb); VAL [={0:0}, ={0:0}, \old(usb_urb)=0, \old(usb_urb)=0, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551615:0}, tmp___0=38, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}, value={-18446744073709551615:0}] [L6973] 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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, iso_packets=0, ldv_alloc_urb()={-18446744073709551615:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, mem_flags=208, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6973] tmp = ldv_alloc_urb() [L6974] return (tmp); VAL [={0:0}, ={0:0}, \old(iso_packets)=0, \old(mem_flags)=208, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, 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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, mem_flags=208, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6256] RET, EXPR ldv_usb_alloc_urb_5(0, 208U) [L6256] urb = ldv_usb_alloc_urb_5(0, 208U) [L6257] COND FALSE !((unsigned long )urb == (unsigned long )((struct urb *)0)) [L6263] EXPR dev->udev 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={5004:5019}, buf={0:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6263] CALL, EXPR usb_alloc_coherent(dev->udev, 64UL, 208U, & urb->transfer_dma) VAL [={0:0}, ={0:0}, \old(arg1)=64, \old(arg2)=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={5004:5019}, arg0={4953:5044}, arg3={-18446744073709551615:104}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7454] CALL, EXPR ldv_malloc(0UL) VAL [={0:0}, ={0:0}, \old(size)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5621] void *p ; [L5622] void *tmp ; [L5623] int tmp___0 ; [L5625] tmp___0 = __VERIFIER_nondet_int() [L5626] COND FALSE !(tmp___0 != 0) [L5629] tmp = malloc(size) [L5630] p = tmp VAL [={0:0}, ={0:0}, \old(size)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, p={-18446744073709551617:0}, ref_cnt=1, SERIAL_STATE=0, size=0, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5631] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5617] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5631] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, p={-18446744073709551617:0}, ref_cnt=1, SERIAL_STATE=0, size=0, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5632] return (p); VAL [={0:0}, ={0:0}, \old(size)=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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, p={-18446744073709551617:0}, ref_cnt=1, SERIAL_STATE=0, size=0, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7454] RET, EXPR ldv_malloc(0UL) VAL [={0:0}, ={0:0}, \old(arg1)=64, \old(arg2)=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={5004:5019}, arg0={4953:5044}, arg0={4953:5044}, arg1=64, arg2=208, arg3={-18446744073709551615:104}, arg3={-18446744073709551615:104}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-18446744073709551617:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7454] return ldv_malloc(0UL); [L6263] RET, EXPR usb_alloc_coherent(dev->udev, 64UL, 208U, & urb->transfer_dma) 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={5004:5019}, buf={0:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, urb={-18446744073709551615:0}, usb_alloc_coherent(dev->udev, 64UL, 208U, & urb->transfer_dma)={-18446744073709551617:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6263] tmp = usb_alloc_coherent(dev->udev, 64UL, 208U, & urb->transfer_dma) [L6264] buf = (u8 *)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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6265] COND FALSE !((unsigned long )buf == (unsigned long )((u8 *)0U)) [L6272] EXPR dev->udev 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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6272] CALL, EXPR __create_pipe(dev->udev, 2U) VAL [={0:0}, ={0:0}, \old(endpoint)=2, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5576] EXPR dev->devnum [L5576] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6272] RET, EXPR __create_pipe(dev->udev, 2U) VAL [={0:0}, ={0:0}, __create_pipe(dev->udev, 2U)=4951, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6272] tmp___0 = __create_pipe(dev->udev, 2U) [L6273] EXPR dev->udev 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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6273-L6274] CALL ldv_usb_fill_bulk_urb_3(urb, dev->udev, tmp___0 | 3221225600U, (void *)buf, 64, & ems_usb_read_bulk_callback, (void *)dev) VAL [={0:0}, ={0:0}, \old()=0, \old()=0, \old(completeFnBulkCounter)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6957] CALL ldv_fill_bulk_urb(urb, complete_fn) [L7188] COND TRUE (unsigned long )usb_urb == (unsigned long )urb [L7189] completeFnBulk = complete_fn [L7190] completeFnBulkCounter = completeFnBulkCounter + 1 VAL [={-1:0}, ={0:0}, \old()=0, \old()=0, \old(completeFnBulkCounter)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, complete_fn={-1:0}, complete_fn={-1:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, urb={-18446744073709551615:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6957] RET ldv_fill_bulk_urb(urb, complete_fn) [L6273-L6274] RET ldv_usb_fill_bulk_urb_3(urb, dev->udev, tmp___0 | 3221225600U, (void *)buf, 64, & ems_usb_read_bulk_callback, (void *)dev) VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6275] EXPR urb->transfer_flags [L6275] urb->transfer_flags = urb->transfer_flags | 4U [L6276] FCALL usb_anchor_urb(urb, & dev->rx_submitted) VAL [={-1:0}, ={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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6277] CALL, EXPR ldv_usb_submit_urb_8(urb, 208U) [L6986] int tmp ; VAL [={0:0}, ={-1:0}, \old(ldv_func_arg2)=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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg2=208, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6988] CALL, EXPR ldv_submit_urb(ldv_func_arg1) VAL [={-1:0}, ={0:0}, \old()=0, \old()=-1, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=0, \old(usb_urb)=-18446744073709551615, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7198] int res ; [L7199] int tmp ; VAL [={0:0}, ={-1:0}, \old()=-1, \old()=0, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=-18446744073709551615, \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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, urb={-18446744073709551615:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7201] CALL, EXPR ldv_undef_int() VAL [={-1:0}, ={0:0}, \old()=-1, \old()=0, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=-18446744073709551615, \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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5655] int tmp ; [L5657] tmp = __VERIFIER_nondet_int() [L5658] return (tmp); VAL [={-1:0}, ={0:0}, \old()=-1, \old()=0, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=0, \old(usb_urb)=-18446744073709551615, \result=-2, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, tmp=-2, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7201] RET, EXPR ldv_undef_int() VAL [={-1:0}, ={0:0}, \old()=0, \old()=-1, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=0, \old(usb_urb)=-18446744073709551615, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_undef_int()=-2, ref_cnt=1, SERIAL_STATE=0, urb={-18446744073709551615:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7201] tmp = ldv_undef_int() [L7202] res = tmp VAL [={0:0}, ={-1:0}, \old()=-1, \old()=0, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=0, \old(usb_urb)=-18446744073709551615, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, res=-2, SERIAL_STATE=0, tmp=-2, urb={-18446744073709551615:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7203] COND TRUE res <= 0 VAL [={0:0}, ={-1:0}, \old()=-1, \old()=0, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=-18446744073709551615, \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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, res=-2, SERIAL_STATE=0, tmp=-2, urb={-18446744073709551615:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7207] COND FALSE !(res == 0) VAL [={-1:0}, ={0:0}, \old()=-1, \old()=0, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=0, \old(usb_urb)=-18446744073709551615, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, res=-2, SERIAL_STATE=0, tmp=-2, urb={-18446744073709551615:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7223] return (res); VAL [={0:0}, ={-1:0}, \old()=0, \old()=-1, \old(completeFnBulkCounter)=1, \old(completeFnIntCounter)=0, \old(usb_intfdata)=0, \old(usb_intfdata)=0, \old(usb_urb)=-18446744073709551615, \old(usb_urb)=0, \result=-2, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, res=-2, SERIAL_STATE=0, tmp=-2, urb={-18446744073709551615:0}, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6988] RET, EXPR ldv_submit_urb(ldv_func_arg1) VAL [={-1:0}, ={0:0}, \old(ldv_func_arg2)=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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg2=208, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldv_submit_urb(ldv_func_arg1)=-2, ref_cnt=1, SERIAL_STATE=0, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6988] tmp = ldv_submit_urb(ldv_func_arg1) [L6989] return (tmp); VAL [={0:0}, ={-1:0}, \old(ldv_func_arg2)=208, \result=-2, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg2=208, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ref_cnt=1, SERIAL_STATE=0, tmp=-2, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6277] RET, EXPR ldv_usb_submit_urb_8(urb, 208U) [L6277] err = ldv_usb_submit_urb_8(urb, 208U) [L6278] COND TRUE err != 0 VAL [={-1:0}, ={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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6279] FCALL usb_unanchor_urb(urb) VAL [={-1:0}, ={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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6280] EXPR dev->udev [L6280] EXPR urb->transfer_dma VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, urb->transfer_dma=5039, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6280] FCALL usb_free_coherent(dev->udev, 64UL, (void *)buf, urb->transfer_dma) VAL [={-1:0}, ={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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev->udev={4953:5044}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, urb->transfer_dma=5039, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6292] COND TRUE i == 0 [L6294] return (err); VAL [={0:0}, ={-1:0}, \result=-2, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, buf={-18446744073709551617:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, i=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_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={4865:5006}, ref_cnt=1, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=4951, urb={-18446744073709551615:0}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6378] RET, EXPR ems_usb_start(dev) [L6378] err = ems_usb_start(dev) [L6379] COND TRUE err != 0 VAL [={-1:0}, ={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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:3136}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6380] COND FALSE !(err == -19) VAL [={-1:0}, ={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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:3136}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6386] FCALL close_candev(netdev) VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:3136}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6387] return (err); VAL [={0:0}, ={-1:0}, \result=-2, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev={0:3136}, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, err=-2, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, netdev={0:0}, netdev={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:3136}, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6882] RET, EXPR ems_usb_open(ems_usb_netdev_ops_group1) [L6882] ldv_retval_3 = ems_usb_open(ems_usb_netdev_ops_group1) [L6883] COND FALSE !(ldv_retval_3 == 0) VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=1, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6801] tmp___1 = __VERIFIER_nondet_int() [L6803] case 0: [L6833] case 1: [L6869] case 2: VAL [={-1:0}, ={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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=1, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6870] COND TRUE ldv_state_variable_2 != 0 [L6871] tmp___4 = __VERIFIER_nondet_int() [L6873] case 0: [L6880] case 1: [L6890] case 2: [L6897] case 3: [L6909] case 4: VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=2, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=1, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=4, usb_counter=1, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6910] COND TRUE ldv_state_variable_2 == 2 [L6911] CALL ldv_ndo_uninit_2() [L7413] return __VERIFIER_nondet_int(); [L6911] RET ldv_ndo_uninit_2() [L6912] ldv_state_variable_2 = 1 [L6913] usb_counter = usb_counter - 1 [L6914] ref_cnt = ref_cnt - 1 VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=4, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6801] tmp___1 = __VERIFIER_nondet_int() [L6803] case 0: [L6833] case 1: VAL [={-1:0}, ={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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=1, tmp___4=4, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6834] COND TRUE ldv_state_variable_0 != 0 [L6835] tmp___3 = __VERIFIER_nondet_int() [L6837] case 0: VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=0, tmp___4=4, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6838] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L6839] CALL ems_usb_driver_exit() [L6750] CALL ldv_usb_deregister_24(& ems_usb_driver) [L7101] FCALL usb_deregister(arg) [L7102] ldv_state_variable_1 = 0 VAL [={-1:0}, ={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={5004:5019}, arg={36:0}, arg={36:0}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6750] RET ldv_usb_deregister_24(& ems_usb_driver) [L6839] RET ems_usb_driver_exit() [L6840] ldv_state_variable_0 = 2 VAL [={-1:0}, ={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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, ldvarg0={0:0}, ldvarg1={0:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=0, tmp___4=4, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L6931] CALL ldv_check_final_state() [L7334] COND FALSE !((unsigned long )usb_urb == (unsigned long )((struct urb *)0)) VAL [={0:0}, ={-1:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L7336] CALL ldv_error() VAL [={-1:0}, ={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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] [L5673] reach_error() VAL [={-1:0}, ={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={5004:5019}, completeFnBulkCounter=1, completeFnIntCounter=0, dev_counter=0, ems_usb_bittiming_const={35:0}, ems_usb_driver={36:0}, ems_usb_driver_group1={0:0}, ems_usb_netdev_ops={34:0}, ems_usb_netdev_ops_group1={0:0}, ems_usb_table={33:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=-2, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={-18446744073709551615:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 660 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 461.2s, OverallIterations: 40, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.6s, AutomataDifference: 309.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 49847 SdHoareTripleChecker+Valid, 145.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48186 mSDsluCounter, 181320 SdHoareTripleChecker+Invalid, 135.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 142641 mSDsCounter, 22084 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63946 IncrementalHoareTripleChecker+Invalid, 86036 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22084 mSolverCounterUnsat, 38679 mSDtfsCounter, 63946 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6482 GetRequests, 5852 SyntacticMatches, 9 SemanticMatches, 621 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4056 ImplicationChecksByTransitivity, 37.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71602occurred in iteration=35, InterpolantAutomatonStates: 445, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 99.0s AutomataMinimizationTime, 39 MinimizatonAttempts, 522694 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 22.1s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 9293 NumberOfCodeBlocks, 9283 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 10790 ConstructedInterpolants, 11 QuantifiedInterpolants, 20739 SizeOfPredicates, 103 NumberOfNonLiveVariables, 38689 ConjunctsInSsa, 361 ConjunctsInUnsatCore, 67 InterpolantComputations, 32 PerfectInterpolantSequences, 6478/6910 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 20:33:27,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa --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 be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:33:29,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:33:29,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:33:29,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:33:29,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:33:29,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:33:29,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:33:29,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:33:29,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:33:29,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:33:29,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:33:29,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:33:29,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:33:29,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:33:29,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:33:29,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:33:29,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:33:29,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:33:29,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:33:29,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:33:29,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:33:29,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:33:29,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:33:29,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:33:29,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:33:29,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:33:29,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:33:29,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:33:29,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:33:29,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:33:29,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:33:29,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:33:29,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:33:29,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:33:29,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:33:29,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:33:29,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:33:29,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:33:29,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:33:29,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:33:29,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:33:29,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-06 20:33:29,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:33:29,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:33:29,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:33:29,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:33:29,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:33:29,726 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:33:29,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:33:29,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:33:29,726 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:33:29,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:33:29,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:33:29,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:33:29,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:33:29,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:33:29,727 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:33:29,727 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 20:33:29,727 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 20:33:29,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:33:29,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:33:29,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:33:29,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:33:29,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:33:29,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:33:29,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:33:29,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:33:29,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:33:29,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:33:29,729 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 20:33:29,729 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 20:33:29,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:33:29,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:33:29,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:33:29,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:33:29,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 20:33:29,730 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_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2021-12-06 20:33:29,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:33:29,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:33:29,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:33:29,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:33:29,983 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:33:29,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2021-12-06 20:33:30,027 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/7fb883c2e/91e6ed5ce09a490fa29e58d735b2b5ec/FLAG2420a6d16 [2021-12-06 20:33:30,623 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:33:30,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2021-12-06 20:33:30,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/7fb883c2e/91e6ed5ce09a490fa29e58d735b2b5ec/FLAG2420a6d16 [2021-12-06 20:33:31,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/data/7fb883c2e/91e6ed5ce09a490fa29e58d735b2b5ec [2021-12-06 20:33:31,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:33:31,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:33:31,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:33:31,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:33:31,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:33:31,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:33:31" (1/1) ... [2021-12-06 20:33:31,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f9504a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:31, skipping insertion in model container [2021-12-06 20:33:31,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:33:31" (1/1) ... [2021-12-06 20:33:31,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:33:31,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:33:31,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2021-12-06 20:33:32,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:33:32,243 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 20:33:32,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:33:32,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2021-12-06 20:33:32,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:33:32,449 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:33:32,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2021-12-06 20:33:32,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:33:32,667 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:33:32,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32 WrapperNode [2021-12-06 20:33:32,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:33:32,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:33:32,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:33:32,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:33:32,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,778 INFO L137 Inliner]: procedures = 183, calls = 719, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 1940 [2021-12-06 20:33:32,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:33:32,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:33:32,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:33:32,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:33:32,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:33:32,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:33:32,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:33:32,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:33:32,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (1/1) ... [2021-12-06 20:33:32,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:33:32,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:33:32,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:33:32,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:33:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 20:33:32,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 20:33:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2021-12-06 20:33:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2021-12-06 20:33:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2021-12-06 20:33:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2021-12-06 20:33:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-06 20:33:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 20:33:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 20:33:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 20:33:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-06 20:33:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-06 20:33:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2021-12-06 20:33:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2021-12-06 20:33:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-06 20:33:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-06 20:33:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-06 20:33:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-06 20:33:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2021-12-06 20:33:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2021-12-06 20:33:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 20:33:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 20:33:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 20:33:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 20:33:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 20:33:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 20:33:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-06 20:33:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-06 20:33:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 20:33:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 20:33:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2021-12-06 20:33:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2021-12-06 20:33:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 20:33:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2021-12-06 20:33:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 20:33:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 20:33:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:33:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:33:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 20:33:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2021-12-06 20:33:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-06 20:33:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2021-12-06 20:33:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 20:33:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 20:33:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 20:33:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2021-12-06 20:33:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:33:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-06 20:33:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-06 20:33:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-06 20:33:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2021-12-06 20:33:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-06 20:33:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-06 20:33:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2021-12-06 20:33:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2021-12-06 20:33:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:33:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-06 20:33:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2021-12-06 20:33:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 20:33:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-06 20:33:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-06 20:33:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 20:33:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2021-12-06 20:33:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 20:33:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-06 20:33:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-06 20:33:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-06 20:33:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 20:33:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 20:33:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:33:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:33:33,305 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:33:33,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:33:35,563 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 20:33:44,740 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-06 20:33:53,438 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:33:53,452 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:33:53,452 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:33:53,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:33:53 BoogieIcfgContainer [2021-12-06 20:33:53,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:33:53,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:33:53,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:33:53,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:33:53,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:33:31" (1/3) ... [2021-12-06 20:33:53,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abadd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:33:53, skipping insertion in model container [2021-12-06 20:33:53,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:33:32" (2/3) ... [2021-12-06 20:33:53,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abadd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:33:53, skipping insertion in model container [2021-12-06 20:33:53,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:33:53" (3/3) ... [2021-12-06 20:33:53,460 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2021-12-06 20:33:53,464 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:33:53,464 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:33:53,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:33:53,506 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:33:53,506 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:33:53,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 658 states, 475 states have (on average 1.3368421052631578) internal successors, (635), 499 states have internal predecessors, (635), 135 states have call successors, (135), 48 states have call predecessors, (135), 46 states have return successors, (129), 124 states have call predecessors, (129), 129 states have call successors, (129) [2021-12-06 20:33:53,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 20:33:53,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:33:53,537 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 20:33:53,537 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:33:53,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:33:53,541 INFO L85 PathProgramCache]: Analyzing trace with hash -80698519, now seen corresponding path program 1 times [2021-12-06 20:33:53,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:33:53,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126040899] [2021-12-06 20:33:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:33:53,553 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:33:53,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:33:53,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:33:53,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 20:33:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:33:54,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:33:54,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:33:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 20:33:54,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:33:54,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:33:54,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126040899] [2021-12-06 20:33:54,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126040899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:33:54,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:33:54,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:33:54,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62289389] [2021-12-06 20:33:54,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:33:54,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:33:54,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:33:54,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:33:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:33:54,212 INFO L87 Difference]: Start difference. First operand has 658 states, 475 states have (on average 1.3368421052631578) internal successors, (635), 499 states have internal predecessors, (635), 135 states have call successors, (135), 48 states have call predecessors, (135), 46 states have return successors, (129), 124 states have call predecessors, (129), 129 states have call successors, (129) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:33:56,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:56,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:33:56,482 INFO L93 Difference]: Finished difference Result 1930 states and 2704 transitions. [2021-12-06 20:33:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:33:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-12-06 20:33:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:33:56,503 INFO L225 Difference]: With dead ends: 1930 [2021-12-06 20:33:56,503 INFO L226 Difference]: Without dead ends: 1253 [2021-12-06 20:33:56,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:33:56,512 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 845 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:33:56,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 1890 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 20:33:56,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2021-12-06 20:33:56,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1253. [2021-12-06 20:33:56,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 913 states have (on average 1.3198247535596934) internal successors, (1205), 941 states have internal predecessors, (1205), 249 states have call successors, (249), 91 states have call predecessors, (249), 90 states have return successors, (244), 234 states have call predecessors, (244), 244 states have call successors, (244) [2021-12-06 20:33:56,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1698 transitions. [2021-12-06 20:33:56,621 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1698 transitions. Word has length 28 [2021-12-06 20:33:56,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:33:56,621 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 1698 transitions. [2021-12-06 20:33:56,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:33:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1698 transitions. [2021-12-06 20:33:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 20:33:56,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:33:56,624 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:33:56,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:33:56,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:33:56,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:33:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:33:56,829 INFO L85 PathProgramCache]: Analyzing trace with hash 366324340, now seen corresponding path program 1 times [2021-12-06 20:33:56,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:33:56,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821271666] [2021-12-06 20:33:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:33:56,833 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:33:56,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:33:56,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:33:56,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 20:33:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:33:57,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:33:57,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:33:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:33:58,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:33:58,111 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:33:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821271666] [2021-12-06 20:33:58,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821271666] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:33:58,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:33:58,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:33:58,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483966156] [2021-12-06 20:33:58,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:33:58,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:33:58,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:33:58,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:33:58,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:33:58,114 INFO L87 Difference]: Start difference. First operand 1253 states and 1698 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:33:58,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:33:58,387 INFO L93 Difference]: Finished difference Result 3744 states and 5179 transitions. [2021-12-06 20:33:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:33:58,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-12-06 20:33:58,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:33:58,409 INFO L225 Difference]: With dead ends: 3744 [2021-12-06 20:33:58,409 INFO L226 Difference]: Without dead ends: 2498 [2021-12-06 20:33:58,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:33:58,416 INFO L933 BasicCegarLoop]: 1106 mSDtfsCounter, 857 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:33:58,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 1959 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 20:33:58,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2021-12-06 20:33:58,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2488. [2021-12-06 20:33:58,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 1816 states have (on average 1.3182819383259912) internal successors, (2394), 1868 states have internal predecessors, (2394), 491 states have call successors, (491), 181 states have call predecessors, (491), 180 states have return successors, (530), 466 states have call predecessors, (530), 486 states have call successors, (530) [2021-12-06 20:33:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3415 transitions. [2021-12-06 20:33:58,551 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3415 transitions. Word has length 38 [2021-12-06 20:33:58,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:33:58,552 INFO L470 AbstractCegarLoop]: Abstraction has 2488 states and 3415 transitions. [2021-12-06 20:33:58,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:33:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3415 transitions. [2021-12-06 20:33:58,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 20:33:58,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:33:58,555 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:33:58,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 20:33:58,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:33:58,756 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:33:58,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:33:58,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1529159426, now seen corresponding path program 1 times [2021-12-06 20:33:58,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:33:58,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426067020] [2021-12-06 20:33:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:33:58,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:33:58,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:33:58,758 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:33:58,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 20:33:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:33:59,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:33:59,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:33:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:33:59,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:33:59,925 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:33:59,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426067020] [2021-12-06 20:33:59,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426067020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:33:59,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:33:59,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:33:59,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353458370] [2021-12-06 20:33:59,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:33:59,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:33:59,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:33:59,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:33:59,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:33:59,927 INFO L87 Difference]: Start difference. First operand 2488 states and 3415 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:00,015 INFO L93 Difference]: Finished difference Result 2490 states and 3416 transitions. [2021-12-06 20:34:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:00,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-12-06 20:34:00,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:00,027 INFO L225 Difference]: With dead ends: 2490 [2021-12-06 20:34:00,027 INFO L226 Difference]: Without dead ends: 2487 [2021-12-06 20:34:00,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:00,029 INFO L933 BasicCegarLoop]: 868 mSDtfsCounter, 839 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 868 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 [2021-12-06 20:34:00,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [839 Valid, 868 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:34:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2021-12-06 20:34:00,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2487. [2021-12-06 20:34:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 1816 states have (on average 1.3177312775330396) internal successors, (2393), 1867 states have internal predecessors, (2393), 490 states have call successors, (490), 181 states have call predecessors, (490), 180 states have return successors, (530), 466 states have call predecessors, (530), 486 states have call successors, (530) [2021-12-06 20:34:00,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3413 transitions. [2021-12-06 20:34:00,132 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3413 transitions. Word has length 39 [2021-12-06 20:34:00,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:00,132 INFO L470 AbstractCegarLoop]: Abstraction has 2487 states and 3413 transitions. [2021-12-06 20:34:00,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:00,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3413 transitions. [2021-12-06 20:34:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 20:34:00,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:00,134 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:34:00,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 20:34:00,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:00,335 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:00,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:00,335 INFO L85 PathProgramCache]: Analyzing trace with hash -159609161, now seen corresponding path program 1 times [2021-12-06 20:34:00,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:00,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448944618] [2021-12-06 20:34:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:00,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:00,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:00,337 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:00,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 20:34:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:00,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:00,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:34:01,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:01,109 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:01,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448944618] [2021-12-06 20:34:01,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448944618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:01,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:01,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:34:01,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085831092] [2021-12-06 20:34:01,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:01,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:01,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:01,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:01,111 INFO L87 Difference]: Start difference. First operand 2487 states and 3413 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:01,187 INFO L93 Difference]: Finished difference Result 2489 states and 3414 transitions. [2021-12-06 20:34:01,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:01,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-12-06 20:34:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:01,205 INFO L225 Difference]: With dead ends: 2489 [2021-12-06 20:34:01,205 INFO L226 Difference]: Without dead ends: 2486 [2021-12-06 20:34:01,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:01,208 INFO L933 BasicCegarLoop]: 866 mSDtfsCounter, 836 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 866 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 [2021-12-06 20:34:01,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 866 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:34:01,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2021-12-06 20:34:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2486. [2021-12-06 20:34:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 1816 states have (on average 1.3171806167400881) internal successors, (2392), 1866 states have internal predecessors, (2392), 489 states have call successors, (489), 181 states have call predecessors, (489), 180 states have return successors, (530), 466 states have call predecessors, (530), 486 states have call successors, (530) [2021-12-06 20:34:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3411 transitions. [2021-12-06 20:34:01,319 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3411 transitions. Word has length 40 [2021-12-06 20:34:01,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:01,320 INFO L470 AbstractCegarLoop]: Abstraction has 2486 states and 3411 transitions. [2021-12-06 20:34:01,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3411 transitions. [2021-12-06 20:34:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 20:34:01,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:01,322 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:34:01,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 20:34:01,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:01,523 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:01,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:01,524 INFO L85 PathProgramCache]: Analyzing trace with hash -653219039, now seen corresponding path program 1 times [2021-12-06 20:34:01,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:01,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020857738] [2021-12-06 20:34:01,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:01,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:01,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:01,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:01,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 20:34:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:01,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:01,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:02,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:34:02,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:02,329 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:02,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020857738] [2021-12-06 20:34:02,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020857738] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:02,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:02,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:34:02,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394740488] [2021-12-06 20:34:02,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:02,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:02,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:02,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:02,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:02,331 INFO L87 Difference]: Start difference. First operand 2486 states and 3411 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:02,421 INFO L93 Difference]: Finished difference Result 2488 states and 3412 transitions. [2021-12-06 20:34:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:02,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2021-12-06 20:34:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:02,433 INFO L225 Difference]: With dead ends: 2488 [2021-12-06 20:34:02,434 INFO L226 Difference]: Without dead ends: 2485 [2021-12-06 20:34:02,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:02,436 INFO L933 BasicCegarLoop]: 864 mSDtfsCounter, 833 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 864 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 [2021-12-06 20:34:02,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [833 Valid, 864 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:34:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2021-12-06 20:34:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2485. [2021-12-06 20:34:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 1816 states have (on average 1.3166299559471366) internal successors, (2391), 1865 states have internal predecessors, (2391), 488 states have call successors, (488), 181 states have call predecessors, (488), 180 states have return successors, (530), 466 states have call predecessors, (530), 486 states have call successors, (530) [2021-12-06 20:34:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3409 transitions. [2021-12-06 20:34:02,543 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3409 transitions. Word has length 41 [2021-12-06 20:34:02,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:02,543 INFO L470 AbstractCegarLoop]: Abstraction has 2485 states and 3409 transitions. [2021-12-06 20:34:02,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3409 transitions. [2021-12-06 20:34:02,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 20:34:02,544 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:02,544 INFO L514 BasicCegarLoop]: 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] [2021-12-06 20:34:02,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 20:34:02,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:02,745 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1224748794, now seen corresponding path program 1 times [2021-12-06 20:34:02,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:02,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968341560] [2021-12-06 20:34:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:02,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:02,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:02,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 20:34:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:03,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:03,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:34:03,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:03,585 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:03,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968341560] [2021-12-06 20:34:03,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968341560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:03,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:03,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:34:03,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687581721] [2021-12-06 20:34:03,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:03,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:03,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:03,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:03,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:03,587 INFO L87 Difference]: Start difference. First operand 2485 states and 3409 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:03,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:03,662 INFO L93 Difference]: Finished difference Result 2487 states and 3410 transitions. [2021-12-06 20:34:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:03,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2021-12-06 20:34:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:03,675 INFO L225 Difference]: With dead ends: 2487 [2021-12-06 20:34:03,675 INFO L226 Difference]: Without dead ends: 2475 [2021-12-06 20:34:03,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:03,677 INFO L933 BasicCegarLoop]: 863 mSDtfsCounter, 830 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 863 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 [2021-12-06 20:34:03,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:34:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2021-12-06 20:34:03,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2475. [2021-12-06 20:34:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 1807 states have (on average 1.3159933591588269) internal successors, (2378), 1855 states have internal predecessors, (2378), 487 states have call successors, (487), 181 states have call predecessors, (487), 180 states have return successors, (530), 466 states have call predecessors, (530), 486 states have call successors, (530) [2021-12-06 20:34:03,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3395 transitions. [2021-12-06 20:34:03,784 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3395 transitions. Word has length 42 [2021-12-06 20:34:03,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:03,784 INFO L470 AbstractCegarLoop]: Abstraction has 2475 states and 3395 transitions. [2021-12-06 20:34:03,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:34:03,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3395 transitions. [2021-12-06 20:34:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-06 20:34:03,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:03,788 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-06 20:34:03,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 20:34:03,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:03,989 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:03,991 INFO L85 PathProgramCache]: Analyzing trace with hash 299575856, now seen corresponding path program 1 times [2021-12-06 20:34:03,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:03,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909490301] [2021-12-06 20:34:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:03,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:03,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:03,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:04,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 20:34:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:04,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:04,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 20:34:04,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:04,855 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:04,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909490301] [2021-12-06 20:34:04,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909490301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:04,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:04,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:34:04,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223559753] [2021-12-06 20:34:04,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:04,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:04,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:04,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:04,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:04,857 INFO L87 Difference]: Start difference. First operand 2475 states and 3395 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:34:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:05,128 INFO L93 Difference]: Finished difference Result 5676 states and 7692 transitions. [2021-12-06 20:34:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:05,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2021-12-06 20:34:05,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:05,143 INFO L225 Difference]: With dead ends: 5676 [2021-12-06 20:34:05,143 INFO L226 Difference]: Without dead ends: 3208 [2021-12-06 20:34:05,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:05,151 INFO L933 BasicCegarLoop]: 929 mSDtfsCounter, 242 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:05,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1761 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 20:34:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-12-06 20:34:05,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3200. [2021-12-06 20:34:05,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 2340 states have (on average 1.294017094017094) internal successors, (3028), 2388 states have internal predecessors, (3028), 608 states have call successors, (608), 252 states have call predecessors, (608), 251 states have return successors, (659), 587 states have call predecessors, (659), 607 states have call successors, (659) [2021-12-06 20:34:05,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 4295 transitions. [2021-12-06 20:34:05,332 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 4295 transitions. Word has length 85 [2021-12-06 20:34:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:05,332 INFO L470 AbstractCegarLoop]: Abstraction has 3200 states and 4295 transitions. [2021-12-06 20:34:05,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:34:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 4295 transitions. [2021-12-06 20:34:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 20:34:05,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:05,336 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2021-12-06 20:34:05,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 20:34:05,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:05,536 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:05,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash -169264503, now seen corresponding path program 1 times [2021-12-06 20:34:05,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:05,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953972348] [2021-12-06 20:34:05,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:05,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:05,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:05,538 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:05,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 20:34:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:06,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:06,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 20:34:06,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:06,480 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:06,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953972348] [2021-12-06 20:34:06,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953972348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:06,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:06,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:34:06,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745367823] [2021-12-06 20:34:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:06,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:06,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:06,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:06,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:06,482 INFO L87 Difference]: Start difference. First operand 3200 states and 4295 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:34:08,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:08,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:08,877 INFO L93 Difference]: Finished difference Result 7160 states and 9564 transitions. [2021-12-06 20:34:08,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:08,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 101 [2021-12-06 20:34:08,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:08,902 INFO L225 Difference]: With dead ends: 7160 [2021-12-06 20:34:08,902 INFO L226 Difference]: Without dead ends: 3974 [2021-12-06 20:34:08,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:08,912 INFO L933 BasicCegarLoop]: 1090 mSDtfsCounter, 246 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:08,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 1923 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 20:34:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2021-12-06 20:34:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3966. [2021-12-06 20:34:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 2916 states have (on average 1.2825788751714677) internal successors, (3740), 2964 states have internal predecessors, (3740), 728 states have call successors, (728), 322 states have call predecessors, (728), 321 states have return successors, (787), 707 states have call predecessors, (787), 727 states have call successors, (787) [2021-12-06 20:34:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 5255 transitions. [2021-12-06 20:34:09,120 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 5255 transitions. Word has length 101 [2021-12-06 20:34:09,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:09,121 INFO L470 AbstractCegarLoop]: Abstraction has 3966 states and 5255 transitions. [2021-12-06 20:34:09,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:34:09,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 5255 transitions. [2021-12-06 20:34:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 20:34:09,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:09,125 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2021-12-06 20:34:09,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 20:34:09,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:09,325 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:09,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2107056927, now seen corresponding path program 1 times [2021-12-06 20:34:09,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:09,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511586773] [2021-12-06 20:34:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:09,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:09,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:09,328 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:09,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 20:34:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:09,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:09,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 20:34:10,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:10,432 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:10,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511586773] [2021-12-06 20:34:10,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511586773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:10,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:10,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:34:10,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990367358] [2021-12-06 20:34:10,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:10,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:10,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:10,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:10,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:10,433 INFO L87 Difference]: Start difference. First operand 3966 states and 5255 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:34:10,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:10,733 INFO L93 Difference]: Finished difference Result 10226 states and 13670 transitions. [2021-12-06 20:34:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:10,734 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2021-12-06 20:34:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:10,760 INFO L225 Difference]: With dead ends: 10226 [2021-12-06 20:34:10,760 INFO L226 Difference]: Without dead ends: 6274 [2021-12-06 20:34:10,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:10,770 INFO L933 BasicCegarLoop]: 1217 mSDtfsCounter, 740 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:10,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 2055 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:34:10,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2021-12-06 20:34:11,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 6256. [2021-12-06 20:34:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 4629 states have (on average 1.3035212788939297) internal successors, (6034), 4725 states have internal predecessors, (6034), 1136 states have call successors, (1136), 491 states have call predecessors, (1136), 490 states have return successors, (1233), 1095 states have call predecessors, (1233), 1135 states have call successors, (1233) [2021-12-06 20:34:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 8403 transitions. [2021-12-06 20:34:11,089 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 8403 transitions. Word has length 116 [2021-12-06 20:34:11,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:11,089 INFO L470 AbstractCegarLoop]: Abstraction has 6256 states and 8403 transitions. [2021-12-06 20:34:11,089 INFO L471 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 20:34:11,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 8403 transitions. [2021-12-06 20:34:11,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 20:34:11,094 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:11,094 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2021-12-06 20:34:11,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 20:34:11,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:11,296 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:11,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1729290461, now seen corresponding path program 1 times [2021-12-06 20:34:11,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:11,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356070724] [2021-12-06 20:34:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:11,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:11,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:11,303 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:11,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 20:34:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:11,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:11,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 20:34:12,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:12,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:12,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356070724] [2021-12-06 20:34:12,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356070724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:12,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:12,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:34:12,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419383278] [2021-12-06 20:34:12,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:12,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:12,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:12,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:12,298 INFO L87 Difference]: Start difference. First operand 6256 states and 8403 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-12-06 20:34:14,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:14,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:14,767 INFO L93 Difference]: Finished difference Result 15558 states and 20780 transitions. [2021-12-06 20:34:14,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:14,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 113 [2021-12-06 20:34:14,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:14,794 INFO L225 Difference]: With dead ends: 15558 [2021-12-06 20:34:14,794 INFO L226 Difference]: Without dead ends: 9320 [2021-12-06 20:34:14,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:14,809 INFO L933 BasicCegarLoop]: 1110 mSDtfsCounter, 667 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:14,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 1833 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 20:34:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9320 states. [2021-12-06 20:34:15,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9320 to 9312. [2021-12-06 20:34:15,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9312 states, 6907 states have (on average 1.3051976255972202) internal successors, (9015), 7083 states have internal predecessors, (9015), 1592 states have call successors, (1592), 813 states have call predecessors, (1592), 812 states have return successors, (1735), 1519 states have call predecessors, (1735), 1591 states have call successors, (1735) [2021-12-06 20:34:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9312 states to 9312 states and 12342 transitions. [2021-12-06 20:34:15,175 INFO L78 Accepts]: Start accepts. Automaton has 9312 states and 12342 transitions. Word has length 113 [2021-12-06 20:34:15,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:15,175 INFO L470 AbstractCegarLoop]: Abstraction has 9312 states and 12342 transitions. [2021-12-06 20:34:15,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-12-06 20:34:15,176 INFO L276 IsEmpty]: Start isEmpty. Operand 9312 states and 12342 transitions. [2021-12-06 20:34:15,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-06 20:34:15,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:15,182 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 20:34:15,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-06 20:34:15,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:15,383 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:15,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1544150734, now seen corresponding path program 1 times [2021-12-06 20:34:15,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:15,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395445030] [2021-12-06 20:34:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:15,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:15,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:15,391 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:15,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 20:34:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:16,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 20:34:16,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-06 20:34:16,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:16,946 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:16,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395445030] [2021-12-06 20:34:16,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395445030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:16,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:16,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:34:16,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463528121] [2021-12-06 20:34:16,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:16,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:34:16,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:16,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:34:16,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:34:16,948 INFO L87 Difference]: Start difference. First operand 9312 states and 12342 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 20:34:19,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:21,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:21,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:21,757 INFO L93 Difference]: Finished difference Result 21028 states and 28457 transitions. [2021-12-06 20:34:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:34:21,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2021-12-06 20:34:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:21,790 INFO L225 Difference]: With dead ends: 21028 [2021-12-06 20:34:21,790 INFO L226 Difference]: Without dead ends: 11734 [2021-12-06 20:34:21,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:34:21,809 INFO L933 BasicCegarLoop]: 1138 mSDtfsCounter, 465 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 106 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 5205 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:21,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 5205 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 23 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-06 20:34:21,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2021-12-06 20:34:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 9392. [2021-12-06 20:34:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9392 states, 6971 states have (on average 1.3023956390761726) internal successors, (9079), 7147 states have internal predecessors, (9079), 1592 states have call successors, (1592), 813 states have call predecessors, (1592), 828 states have return successors, (1823), 1535 states have call predecessors, (1823), 1591 states have call successors, (1823) [2021-12-06 20:34:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9392 states to 9392 states and 12494 transitions. [2021-12-06 20:34:22,261 INFO L78 Accepts]: Start accepts. Automaton has 9392 states and 12494 transitions. Word has length 132 [2021-12-06 20:34:22,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:22,262 INFO L470 AbstractCegarLoop]: Abstraction has 9392 states and 12494 transitions. [2021-12-06 20:34:22,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 20:34:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 9392 states and 12494 transitions. [2021-12-06 20:34:22,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-06 20:34:22,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:22,271 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2021-12-06 20:34:22,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 20:34:22,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:22,471 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1773241416, now seen corresponding path program 1 times [2021-12-06 20:34:22,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:22,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110432469] [2021-12-06 20:34:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:22,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:22,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:22,474 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:22,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 20:34:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:23,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 20:34:23,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-06 20:34:23,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:23,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:23,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110432469] [2021-12-06 20:34:23,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110432469] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:23,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:23,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:34:23,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741099850] [2021-12-06 20:34:23,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:23,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:34:23,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:34:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:34:23,745 INFO L87 Difference]: Start difference. First operand 9392 states and 12494 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:34:24,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:24,084 INFO L93 Difference]: Finished difference Result 18814 states and 25040 transitions. [2021-12-06 20:34:24,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:34:24,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2021-12-06 20:34:24,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:24,122 INFO L225 Difference]: With dead ends: 18814 [2021-12-06 20:34:24,122 INFO L226 Difference]: Without dead ends: 9408 [2021-12-06 20:34:24,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:34:24,143 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 0 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:24,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3426 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:34:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9408 states. [2021-12-06 20:34:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9408 to 9392. [2021-12-06 20:34:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9392 states, 6971 states have (on average 1.3023956390761726) internal successors, (9079), 7147 states have internal predecessors, (9079), 1592 states have call successors, (1592), 813 states have call predecessors, (1592), 828 states have return successors, (1807), 1535 states have call predecessors, (1807), 1591 states have call successors, (1807) [2021-12-06 20:34:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9392 states to 9392 states and 12478 transitions. [2021-12-06 20:34:24,556 INFO L78 Accepts]: Start accepts. Automaton has 9392 states and 12478 transitions. Word has length 138 [2021-12-06 20:34:24,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:24,556 INFO L470 AbstractCegarLoop]: Abstraction has 9392 states and 12478 transitions. [2021-12-06 20:34:24,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:34:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 9392 states and 12478 transitions. [2021-12-06 20:34:24,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-06 20:34:24,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:24,563 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2021-12-06 20:34:24,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 20:34:24,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:24,764 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:24,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:24,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1252937742, now seen corresponding path program 2 times [2021-12-06 20:34:24,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:24,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245475465] [2021-12-06 20:34:24,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:34:24,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:24,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:24,766 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:24,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 20:34:25,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:34:25,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:34:25,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:34:25,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-06 20:34:26,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:26,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:26,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245475465] [2021-12-06 20:34:26,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245475465] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:26,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:26,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:34:26,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458841025] [2021-12-06 20:34:26,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:26,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:26,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:26,020 INFO L87 Difference]: Start difference. First operand 9392 states and 12478 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:34:26,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:26,398 INFO L93 Difference]: Finished difference Result 18798 states and 24984 transitions. [2021-12-06 20:34:26,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:26,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2021-12-06 20:34:26,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:26,419 INFO L225 Difference]: With dead ends: 18798 [2021-12-06 20:34:26,419 INFO L226 Difference]: Without dead ends: 9424 [2021-12-06 20:34:26,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:26,432 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 1 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:26,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1711 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:34:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2021-12-06 20:34:26,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9408. [2021-12-06 20:34:26,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9408 states, 6987 states have (on average 1.3017031630170317) internal successors, (9095), 7163 states have internal predecessors, (9095), 1592 states have call successors, (1592), 813 states have call predecessors, (1592), 828 states have return successors, (1807), 1535 states have call predecessors, (1807), 1591 states have call successors, (1807) [2021-12-06 20:34:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9408 states to 9408 states and 12494 transitions. [2021-12-06 20:34:26,821 INFO L78 Accepts]: Start accepts. Automaton has 9408 states and 12494 transitions. Word has length 144 [2021-12-06 20:34:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:26,821 INFO L470 AbstractCegarLoop]: Abstraction has 9408 states and 12494 transitions. [2021-12-06 20:34:26,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:34:26,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9408 states and 12494 transitions. [2021-12-06 20:34:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-06 20:34:26,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:26,827 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:34:26,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-12-06 20:34:27,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:27,028 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 623947696, now seen corresponding path program 1 times [2021-12-06 20:34:27,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:27,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946115554] [2021-12-06 20:34:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:27,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:27,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:27,030 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:27,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 20:34:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:27,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:34:27,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-06 20:34:27,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:34:27,968 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:27,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946115554] [2021-12-06 20:34:27,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946115554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:34:27,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:34:27,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:34:27,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552488133] [2021-12-06 20:34:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:34:27,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:34:27,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:27,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:34:27,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:34:27,970 INFO L87 Difference]: Start difference. First operand 9408 states and 12494 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-12-06 20:34:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:28,311 INFO L93 Difference]: Finished difference Result 18822 states and 25104 transitions. [2021-12-06 20:34:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:34:28,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 138 [2021-12-06 20:34:28,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:28,339 INFO L225 Difference]: With dead ends: 18822 [2021-12-06 20:34:28,340 INFO L226 Difference]: Without dead ends: 9432 [2021-12-06 20:34:28,353 INFO L932 BasicCegarLoop]: 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 [2021-12-06 20:34:28,353 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 0 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:28,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1714 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:34:28,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9432 states. [2021-12-06 20:34:28,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9432 to 9432. [2021-12-06 20:34:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9432 states, 7011 states have (on average 1.3006703751248039) internal successors, (9119), 7187 states have internal predecessors, (9119), 1592 states have call successors, (1592), 813 states have call predecessors, (1592), 828 states have return successors, (1807), 1535 states have call predecessors, (1807), 1591 states have call successors, (1807) [2021-12-06 20:34:28,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9432 states to 9432 states and 12518 transitions. [2021-12-06 20:34:28,690 INFO L78 Accepts]: Start accepts. Automaton has 9432 states and 12518 transitions. Word has length 138 [2021-12-06 20:34:28,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:28,690 INFO L470 AbstractCegarLoop]: Abstraction has 9432 states and 12518 transitions. [2021-12-06 20:34:28,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-12-06 20:34:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 9432 states and 12518 transitions. [2021-12-06 20:34:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-06 20:34:28,697 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:28,697 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2021-12-06 20:34:28,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 20:34:28,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:28,898 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:28,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:28,898 INFO L85 PathProgramCache]: Analyzing trace with hash -848906030, now seen corresponding path program 1 times [2021-12-06 20:34:28,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:28,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248115568] [2021-12-06 20:34:28,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:28,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:28,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:28,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:28,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 20:34:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:29,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:34:29,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-06 20:34:29,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:34:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-06 20:34:30,439 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:30,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248115568] [2021-12-06 20:34:30,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248115568] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:34:30,439 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:34:30,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-06 20:34:30,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185828813] [2021-12-06 20:34:30,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:34:30,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:34:30,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:30,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:34:30,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:34:30,441 INFO L87 Difference]: Start difference. First operand 9432 states and 12518 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 20:34:31,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:31,023 INFO L93 Difference]: Finished difference Result 18918 states and 25248 transitions. [2021-12-06 20:34:31,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:34:31,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2021-12-06 20:34:31,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:31,045 INFO L225 Difference]: With dead ends: 18918 [2021-12-06 20:34:31,046 INFO L226 Difference]: Without dead ends: 9504 [2021-12-06 20:34:31,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:34:31,060 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 0 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:31,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2570 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:34:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9504 states. [2021-12-06 20:34:31,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9504 to 9504. [2021-12-06 20:34:31,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9504 states, 7083 states have (on average 1.2976140053649583) internal successors, (9191), 7259 states have internal predecessors, (9191), 1592 states have call successors, (1592), 813 states have call predecessors, (1592), 828 states have return successors, (1807), 1535 states have call predecessors, (1807), 1591 states have call successors, (1807) [2021-12-06 20:34:31,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9504 states to 9504 states and 12590 transitions. [2021-12-06 20:34:31,409 INFO L78 Accepts]: Start accepts. Automaton has 9504 states and 12590 transitions. Word has length 139 [2021-12-06 20:34:31,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:31,410 INFO L470 AbstractCegarLoop]: Abstraction has 9504 states and 12590 transitions. [2021-12-06 20:34:31,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-06 20:34:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 9504 states and 12590 transitions. [2021-12-06 20:34:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-06 20:34:31,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:31,416 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2021-12-06 20:34:31,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 20:34:31,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:31,617 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:31,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:31,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1782084334, now seen corresponding path program 1 times [2021-12-06 20:34:31,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:31,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732429814] [2021-12-06 20:34:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:31,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:31,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:31,625 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:31,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 20:34:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:32,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:34:32,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:32,652 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-06 20:34:32,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:34:32,934 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 20:34:32,934 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:32,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732429814] [2021-12-06 20:34:32,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732429814] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:34:32,935 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:34:32,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-06 20:34:32,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497171264] [2021-12-06 20:34:32,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:34:32,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:34:32,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:34:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:34:32,936 INFO L87 Difference]: Start difference. First operand 9504 states and 12590 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:34:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:33,467 INFO L93 Difference]: Finished difference Result 19086 states and 25304 transitions. [2021-12-06 20:34:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:34:33,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2021-12-06 20:34:33,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:33,489 INFO L225 Difference]: With dead ends: 19086 [2021-12-06 20:34:33,489 INFO L226 Difference]: Without dead ends: 9600 [2021-12-06 20:34:33,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:34:33,505 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 5 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:33,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2565 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 20:34:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-12-06 20:34:33,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9600. [2021-12-06 20:34:33,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9600 states, 7179 states have (on average 1.293634210892882) internal successors, (9287), 7355 states have internal predecessors, (9287), 1592 states have call successors, (1592), 813 states have call predecessors, (1592), 828 states have return successors, (1807), 1535 states have call predecessors, (1807), 1591 states have call successors, (1807) [2021-12-06 20:34:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9600 states to 9600 states and 12686 transitions. [2021-12-06 20:34:33,873 INFO L78 Accepts]: Start accepts. Automaton has 9600 states and 12686 transitions. Word has length 146 [2021-12-06 20:34:33,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:33,874 INFO L470 AbstractCegarLoop]: Abstraction has 9600 states and 12686 transitions. [2021-12-06 20:34:33,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:34:33,874 INFO L276 IsEmpty]: Start isEmpty. Operand 9600 states and 12686 transitions. [2021-12-06 20:34:33,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-06 20:34:33,881 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:33,881 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:34:33,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-06 20:34:34,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:34,082 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:34,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2030376912, now seen corresponding path program 2 times [2021-12-06 20:34:34,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:34,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113373522] [2021-12-06 20:34:34,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:34:34,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:34,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:34,091 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:34,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 20:34:34,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:34:34,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:34:34,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:34:34,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 20:34:36,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:34:37,056 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 20:34:37,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:37,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113373522] [2021-12-06 20:34:37,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113373522] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:34:37,057 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:34:37,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-06 20:34:37,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966829016] [2021-12-06 20:34:37,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:34:37,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:34:37,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:37,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:34:37,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:34:37,059 INFO L87 Difference]: Start difference. First operand 9600 states and 12686 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 6 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-12-06 20:34:39,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:51,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:51,442 INFO L93 Difference]: Finished difference Result 57503 states and 76008 transitions. [2021-12-06 20:34:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:34:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 6 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 142 [2021-12-06 20:34:51,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:51,588 INFO L225 Difference]: With dead ends: 57503 [2021-12-06 20:34:51,588 INFO L226 Difference]: Without dead ends: 57495 [2021-12-06 20:34:51,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:34:51,607 INFO L933 BasicCegarLoop]: 2182 mSDtfsCounter, 5352 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 965 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5352 SdHoareTripleChecker+Valid, 5617 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 965 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:51,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5352 Valid, 5617 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [965 Valid, 1555 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time] [2021-12-06 20:34:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57495 states. [2021-12-06 20:34:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57495 to 57406. [2021-12-06 20:34:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57406 states, 42915 states have (on average 1.294046370732844) internal successors, (55534), 44003 states have internal predecessors, (55534), 9532 states have call successors, (9532), 4863 states have call predecessors, (9532), 4958 states have return successors, (10827), 9163 states have call predecessors, (10827), 9531 states have call successors, (10827) [2021-12-06 20:34:53,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57406 states to 57406 states and 75893 transitions. [2021-12-06 20:34:53,949 INFO L78 Accepts]: Start accepts. Automaton has 57406 states and 75893 transitions. Word has length 142 [2021-12-06 20:34:53,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:53,950 INFO L470 AbstractCegarLoop]: Abstraction has 57406 states and 75893 transitions. [2021-12-06 20:34:53,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 6 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-12-06 20:34:53,950 INFO L276 IsEmpty]: Start isEmpty. Operand 57406 states and 75893 transitions. [2021-12-06 20:34:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-06 20:34:53,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:53,976 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-06 20:34:53,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 20:34:54,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:54,177 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:54,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1304065312, now seen corresponding path program 1 times [2021-12-06 20:34:54,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:54,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645045441] [2021-12-06 20:34:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:34:54,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:54,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:54,184 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:54,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 20:34:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:34:54,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:34:54,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:34:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-06 20:34:55,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:34:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 20:34:56,120 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:34:56,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645045441] [2021-12-06 20:34:56,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645045441] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:34:56,121 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:34:56,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-12-06 20:34:56,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956023058] [2021-12-06 20:34:56,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:34:56,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:34:56,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:34:56,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:34:56,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:34:56,122 INFO L87 Difference]: Start difference. First operand 57406 states and 75893 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:34:59,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:59,442 INFO L93 Difference]: Finished difference Result 115946 states and 153494 transitions. [2021-12-06 20:34:59,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:34:59,443 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2021-12-06 20:34:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:59,608 INFO L225 Difference]: With dead ends: 115946 [2021-12-06 20:34:59,608 INFO L226 Difference]: Without dead ends: 58558 [2021-12-06 20:34:59,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2021-12-06 20:34:59,697 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 10 mSDsluCounter, 4270 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5127 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:59,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 5127 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 20:34:59,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58558 states. [2021-12-06 20:35:01,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58558 to 58558. [2021-12-06 20:35:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58558 states, 44067 states have (on average 1.2863594072662083) internal successors, (56686), 45155 states have internal predecessors, (56686), 9532 states have call successors, (9532), 4863 states have call predecessors, (9532), 4958 states have return successors, (10827), 9163 states have call predecessors, (10827), 9531 states have call successors, (10827) [2021-12-06 20:35:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58558 states to 58558 states and 77045 transitions. [2021-12-06 20:35:02,128 INFO L78 Accepts]: Start accepts. Automaton has 58558 states and 77045 transitions. Word has length 152 [2021-12-06 20:35:02,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:35:02,128 INFO L470 AbstractCegarLoop]: Abstraction has 58558 states and 77045 transitions. [2021-12-06 20:35:02,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:35:02,129 INFO L276 IsEmpty]: Start isEmpty. Operand 58558 states and 77045 transitions. [2021-12-06 20:35:02,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-06 20:35:02,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:35:02,157 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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] [2021-12-06 20:35:02,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-12-06 20:35:02,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:35:02,358 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:35:02,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:35:02,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1784799867, now seen corresponding path program 1 times [2021-12-06 20:35:02,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:35:02,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173688392] [2021-12-06 20:35:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:35:02,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:35:02,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:35:02,366 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:35:02,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 20:35:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:35:03,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 20:35:03,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:35:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-06 20:35:03,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:35:03,771 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:35:03,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173688392] [2021-12-06 20:35:03,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173688392] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:35:03,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:35:03,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:35:03,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842529282] [2021-12-06 20:35:03,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:35:03,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:35:03,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:35:03,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:35:03,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:35:03,773 INFO L87 Difference]: Start difference. First operand 58558 states and 77045 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-06 20:35:06,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:35:06,306 INFO L93 Difference]: Finished difference Result 118346 states and 156134 transitions. [2021-12-06 20:35:06,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:35:06,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 152 [2021-12-06 20:35:06,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:35:06,454 INFO L225 Difference]: With dead ends: 118346 [2021-12-06 20:35:06,454 INFO L226 Difference]: Without dead ends: 59806 [2021-12-06 20:35:06,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:35:06,526 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 4 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:35:06,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3427 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:35:06,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59806 states. [2021-12-06 20:35:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59806 to 59590. [2021-12-06 20:35:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59590 states, 44835 states have (on average 1.2846659975465595) internal successors, (57598), 45899 states have internal predecessors, (57598), 9676 states have call successors, (9676), 4863 states have call predecessors, (9676), 5078 states have return successors, (11259), 9451 states have call predecessors, (11259), 9675 states have call successors, (11259) [2021-12-06 20:35:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59590 states to 59590 states and 78533 transitions. [2021-12-06 20:35:09,171 INFO L78 Accepts]: Start accepts. Automaton has 59590 states and 78533 transitions. Word has length 152 [2021-12-06 20:35:09,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:35:09,172 INFO L470 AbstractCegarLoop]: Abstraction has 59590 states and 78533 transitions. [2021-12-06 20:35:09,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-06 20:35:09,172 INFO L276 IsEmpty]: Start isEmpty. Operand 59590 states and 78533 transitions. [2021-12-06 20:35:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 20:35:09,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:35:09,199 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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] [2021-12-06 20:35:09,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-06 20:35:09,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:35:09,400 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:35:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:35:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1763055935, now seen corresponding path program 1 times [2021-12-06 20:35:09,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:35:09,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806646042] [2021-12-06 20:35:09,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:35:09,405 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:35:09,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:35:09,406 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:35:09,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 20:35:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:35:10,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 20:35:10,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:35:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-06 20:35:10,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:35:10,662 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:35:10,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806646042] [2021-12-06 20:35:10,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806646042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:35:10,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:35:10,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:35:10,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22896641] [2021-12-06 20:35:10,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:35:10,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:35:10,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:35:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:35:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:35:10,665 INFO L87 Difference]: Start difference. First operand 59590 states and 78533 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 20:35:12,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:35:25,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:35:25,306 INFO L93 Difference]: Finished difference Result 176324 states and 241334 transitions. [2021-12-06 20:35:25,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:35:25,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 158 [2021-12-06 20:35:25,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:35:25,619 INFO L225 Difference]: With dead ends: 176324 [2021-12-06 20:35:25,619 INFO L226 Difference]: Without dead ends: 116752 [2021-12-06 20:35:25,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:35:25,721 INFO L933 BasicCegarLoop]: 2021 mSDtfsCounter, 2991 mSDsluCounter, 9314 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 475 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 11335 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:35:25,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3116 Valid, 11335 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 650 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-12-06 20:35:25,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116752 states. [2021-12-06 20:35:29,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116752 to 59590. [2021-12-06 20:35:29,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59590 states, 44835 states have (on average 1.2841307014609122) internal successors, (57574), 45899 states have internal predecessors, (57574), 9676 states have call successors, (9676), 4863 states have call predecessors, (9676), 5078 states have return successors, (11259), 9451 states have call predecessors, (11259), 9675 states have call successors, (11259) [2021-12-06 20:35:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59590 states to 59590 states and 78509 transitions. [2021-12-06 20:35:29,610 INFO L78 Accepts]: Start accepts. Automaton has 59590 states and 78509 transitions. Word has length 158 [2021-12-06 20:35:29,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:35:29,610 INFO L470 AbstractCegarLoop]: Abstraction has 59590 states and 78509 transitions. [2021-12-06 20:35:29,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-06 20:35:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 59590 states and 78509 transitions. [2021-12-06 20:35:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-06 20:35:29,637 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:35:29,637 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:35:29,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-12-06 20:35:29,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:35:29,838 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:35:29,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:35:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1843347202, now seen corresponding path program 1 times [2021-12-06 20:35:29,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:35:29,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841564309] [2021-12-06 20:35:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:35:29,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:35:29,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:35:29,846 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:35:29,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 20:35:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:35:30,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-06 20:35:30,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:35:32,163 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-06 20:35:32,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:35:32,164 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:35:32,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841564309] [2021-12-06 20:35:32,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841564309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:35:32,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:35:32,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 20:35:32,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355786235] [2021-12-06 20:35:32,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:35:32,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:35:32,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:35:32,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:35:32,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:35:32,165 INFO L87 Difference]: Start difference. First operand 59590 states and 78509 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, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 20:35:34,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:35:47,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:35:47,650 INFO L93 Difference]: Finished difference Result 137344 states and 184006 transitions. [2021-12-06 20:35:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-06 20:35:47,652 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, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2021-12-06 20:35:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:35:47,849 INFO L225 Difference]: With dead ends: 137344 [2021-12-06 20:35:47,849 INFO L226 Difference]: Without dead ends: 77772 [2021-12-06 20:35:47,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2021-12-06 20:35:47,936 INFO L933 BasicCegarLoop]: 2295 mSDtfsCounter, 1166 mSDsluCounter, 23540 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 102 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 25835 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:35:47,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 25835 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 952 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-12-06 20:35:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77772 states. [2021-12-06 20:35:50,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77772 to 59518. [2021-12-06 20:35:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59518 states, 44763 states have (on average 1.2802984607823427) internal successors, (57310), 45827 states have internal predecessors, (57310), 9676 states have call successors, (9676), 4863 states have call predecessors, (9676), 5078 states have return successors, (11259), 9451 states have call predecessors, (11259), 9675 states have call successors, (11259) [2021-12-06 20:35:51,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59518 states to 59518 states and 78245 transitions. [2021-12-06 20:35:51,178 INFO L78 Accepts]: Start accepts. Automaton has 59518 states and 78245 transitions. Word has length 170 [2021-12-06 20:35:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:35:51,178 INFO L470 AbstractCegarLoop]: Abstraction has 59518 states and 78245 transitions. [2021-12-06 20:35:51,179 INFO L471 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, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 20:35:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 59518 states and 78245 transitions. [2021-12-06 20:35:51,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-06 20:35:51,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:35:51,209 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2021-12-06 20:35:51,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-12-06 20:35:51,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:35:51,410 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:35:51,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:35:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1403238571, now seen corresponding path program 1 times [2021-12-06 20:35:51,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:35:51,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035355419] [2021-12-06 20:35:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:35:51,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:35:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:35:51,419 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:35:51,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 20:35:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:35:52,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:35:52,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:35:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-06 20:35:52,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:35:52,657 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:35:52,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035355419] [2021-12-06 20:35:52,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035355419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:35:52,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:35:52,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:35:52,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617790551] [2021-12-06 20:35:52,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:35:52,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:35:52,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:35:52,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:35:52,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:35:52,659 INFO L87 Difference]: Start difference. First operand 59518 states and 78245 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:35:54,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:35:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:35:59,449 INFO L93 Difference]: Finished difference Result 155284 states and 204507 transitions. [2021-12-06 20:35:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:35:59,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 170 [2021-12-06 20:35:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:35:59,696 INFO L225 Difference]: With dead ends: 155284 [2021-12-06 20:35:59,696 INFO L226 Difference]: Without dead ends: 95784 [2021-12-06 20:35:59,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:35:59,792 INFO L933 BasicCegarLoop]: 1541 mSDtfsCounter, 932 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 3921 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:35:59,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 3921 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 20:35:59,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95784 states. [2021-12-06 20:36:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95784 to 59614. [2021-12-06 20:36:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59614 states, 44859 states have (on average 1.2796986112039948) internal successors, (57406), 45923 states have internal predecessors, (57406), 9676 states have call successors, (9676), 4863 states have call predecessors, (9676), 5078 states have return successors, (11259), 9451 states have call predecessors, (11259), 9675 states have call successors, (11259) [2021-12-06 20:36:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59614 states to 59614 states and 78341 transitions. [2021-12-06 20:36:03,316 INFO L78 Accepts]: Start accepts. Automaton has 59614 states and 78341 transitions. Word has length 170 [2021-12-06 20:36:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:36:03,316 INFO L470 AbstractCegarLoop]: Abstraction has 59614 states and 78341 transitions. [2021-12-06 20:36:03,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 20:36:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 59614 states and 78341 transitions. [2021-12-06 20:36:03,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-06 20:36:03,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:36:03,348 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:36:03,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-12-06 20:36:03,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:36:03,549 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:36:03,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:36:03,551 INFO L85 PathProgramCache]: Analyzing trace with hash -695409246, now seen corresponding path program 1 times [2021-12-06 20:36:03,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:36:03,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262976075] [2021-12-06 20:36:03,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:36:03,554 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:36:03,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:36:03,557 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:36:03,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 20:36:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:36:04,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1134 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:36:04,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:36:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-06 20:36:05,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:36:05,769 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:36:05,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262976075] [2021-12-06 20:36:05,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262976075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:36:05,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:36:05,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:36:05,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990043293] [2021-12-06 20:36:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:36:05,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:36:05,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:36:05,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:36:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:36:05,771 INFO L87 Difference]: Start difference. First operand 59614 states and 78341 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-06 20:36:07,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:09,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:36:09,908 INFO L93 Difference]: Finished difference Result 91962 states and 120708 transitions. [2021-12-06 20:36:09,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:36:09,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 176 [2021-12-06 20:36:09,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:36:09,982 INFO L225 Difference]: With dead ends: 91962 [2021-12-06 20:36:09,982 INFO L226 Difference]: Without dead ends: 32231 [2021-12-06 20:36:10,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:36:10,094 INFO L933 BasicCegarLoop]: 1043 mSDtfsCounter, 720 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:36:10,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 1279 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 20:36:10,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32231 states. [2021-12-06 20:36:11,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32231 to 32141. [2021-12-06 20:36:11,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32141 states, 24196 states have (on average 1.2663250123987435) internal successors, (30640), 24726 states have internal predecessors, (30640), 5188 states have call successors, (5188), 2631 states have call predecessors, (5188), 2756 states have return successors, (6045), 5095 states have call predecessors, (6045), 5187 states have call successors, (6045) [2021-12-06 20:36:11,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32141 states to 32141 states and 41873 transitions. [2021-12-06 20:36:11,828 INFO L78 Accepts]: Start accepts. Automaton has 32141 states and 41873 transitions. Word has length 176 [2021-12-06 20:36:11,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:36:11,828 INFO L470 AbstractCegarLoop]: Abstraction has 32141 states and 41873 transitions. [2021-12-06 20:36:11,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-06 20:36:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 32141 states and 41873 transitions. [2021-12-06 20:36:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-06 20:36:11,848 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:36:11,849 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:36:11,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-12-06 20:36:12,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:36:12,050 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:36:12,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:36:12,051 INFO L85 PathProgramCache]: Analyzing trace with hash 977948158, now seen corresponding path program 1 times [2021-12-06 20:36:12,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:36:12,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314466225] [2021-12-06 20:36:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:36:12,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:36:12,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:36:12,058 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:36:12,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b0937-6692-426c-ba89-14f969f76943/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-06 20:36:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:36:12,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 49 conjunts are in the unsatisfiable core [2021-12-06 20:36:12,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:36:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-06 20:36:16,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:36:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-06 20:36:29,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:36:29,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314466225] [2021-12-06 20:36:29,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314466225] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:36:29,239 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:36:29,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 32 [2021-12-06 20:36:29,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229759613] [2021-12-06 20:36:29,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:36:29,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-06 20:36:29,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:36:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-06 20:36:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2021-12-06 20:36:29,240 INFO L87 Difference]: Start difference. First operand 32141 states and 41873 transitions. Second operand has 32 states, 30 states have (on average 4.9) internal successors, (147), 24 states have internal predecessors, (147), 11 states have call successors, (23), 5 states have call predecessors, (23), 10 states have return successors, (24), 13 states have call predecessors, (24), 11 states have call successors, (24) [2021-12-06 20:36:31,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:33,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:35,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:37,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:39,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:41,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:49,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:51,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:53,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:55,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:57,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:36:59,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []