./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:59:01,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:59:01,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:59:01,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:59:01,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:59:01,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:59:01,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:59:01,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:59:01,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:59:01,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:59:01,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:59:01,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:59:01,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:59:01,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:59:01,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:59:01,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:59:01,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:59:01,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:59:01,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:59:01,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:59:01,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:59:01,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:59:01,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:59:01,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:59:01,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:59:01,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:59:01,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:59:01,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:59:01,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:59:01,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:59:01,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:59:01,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:59:01,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:59:01,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:59:01,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:59:01,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:59:01,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:59:01,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:59:01,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:59:01,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:59:01,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:59:01,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:59:01,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:59:01,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:59:01,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:59:01,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:59:01,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:59:01,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:59:01,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:59:01,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:59:01,797 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:59:01,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:59:01,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:59:01,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:59:01,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:59:01,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:59:01,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:59:01,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:59:01,798 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:59:01,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:59:01,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:59:01,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:59:01,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:59:01,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:59:01,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:59:01,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:59:01,799 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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c [2021-12-06 23:59:01,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:59:01,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:59:01,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:59:01,994 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:59:01,995 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:59:01,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-12-06 23:59:02,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/98eca3300/eb914c3a8f724d07acf2d3a1a33b6068/FLAGc2fac4ce3 [2021-12-06 23:59:02,650 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:59:02,650 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-12-06 23:59:02,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/98eca3300/eb914c3a8f724d07acf2d3a1a33b6068/FLAGc2fac4ce3 [2021-12-06 23:59:03,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/98eca3300/eb914c3a8f724d07acf2d3a1a33b6068 [2021-12-06 23:59:03,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:59:03,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:59:03,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:03,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:59:03,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:59:03,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:03" (1/1) ... [2021-12-06 23:59:03,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7b97cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:03, skipping insertion in model container [2021-12-06 23:59:03,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:03" (1/1) ... [2021-12-06 23:59:03,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:59:03,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:59:03,955 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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-12-06 23:59:03,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:04,016 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:59:04,178 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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-12-06 23:59:04,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:04,463 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:59:04,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04 WrapperNode [2021-12-06 23:59:04,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:04,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:59:04,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:59:04,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:59:04,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,566 INFO L137 Inliner]: procedures = 142, calls = 839, calls flagged for inlining = 59, calls inlined = 40, statements flattened = 1657 [2021-12-06 23:59:04,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:59:04,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:59:04,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:59:04,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:59:04,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:59:04,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:59:04,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:59:04,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:59:04,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (1/1) ... [2021-12-06 23:59:04,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:59:04,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:04,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:59:04,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:59:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 23:59:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure catc_tx_run [2021-12-06 23:59:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_tx_run [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-06 23:59:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-06 23:59:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 23:59:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 23:59:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_run [2021-12-06 23:59:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_run [2021-12-06 23:59:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure catc_get_drvinfo [2021-12-06 23:59:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_get_drvinfo [2021-12-06 23:59:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_msg [2021-12-06 23:59:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_msg [2021-12-06 23:59:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:59:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:59:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 23:59:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 23:59:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:59:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:59:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure catc_multicast [2021-12-06 23:59:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_multicast [2021-12-06 23:59:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-06 23:59:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-06 23:59:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-12-06 23:59:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-06 23:59:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 23:59:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:59:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 23:59:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 23:59:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-06 23:59:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-06 23:59:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 23:59:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_async [2021-12-06 23:59:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_async [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:59:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure catc_exit [2021-12-06 23:59:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_exit [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-06 23:59:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-06 23:59:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 23:59:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure catc_init [2021-12-06 23:59:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_init [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-06 23:59:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 23:59:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 23:59:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 23:59:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 23:59:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-06 23:59:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 23:59:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-12-06 23:59:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-06 23:59:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-06 23:59:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:59:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:59:04,972 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:59:04,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:59:05,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-12-06 23:59:05,560 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:59:05,568 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:59:06,399 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2021-12-06 23:59:06,399 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2021-12-06 23:59:06,399 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-12-06 23:59:06,399 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-12-06 23:59:06,422 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:59:06,434 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:59:06,435 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-12-06 23:59:06,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:06 BoogieIcfgContainer [2021-12-06 23:59:06,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:59:06,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:59:06,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:59:06,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:59:06,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:59:03" (1/3) ... [2021-12-06 23:59:06,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa05b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:06, skipping insertion in model container [2021-12-06 23:59:06,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:04" (2/3) ... [2021-12-06 23:59:06,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa05b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:06, skipping insertion in model container [2021-12-06 23:59:06,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:06" (3/3) ... [2021-12-06 23:59:06,445 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-12-06 23:59:06,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:59:06,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:59:06,490 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:59:06,495 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 23:59:06,495 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:59:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 539 states, 380 states have (on average 1.381578947368421) internal successors, (525), 393 states have internal predecessors, (525), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2021-12-06 23:59:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 23:59:06,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:06,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:06,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:06,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:06,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1343427639, now seen corresponding path program 1 times [2021-12-06 23:59:06,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:06,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299922017] [2021-12-06 23:59:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:06,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:06,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:06,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:06,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299922017] [2021-12-06 23:59:06,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299922017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:06,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:06,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:59:06,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266147726] [2021-12-06 23:59:06,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:06,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:59:06,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:06,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:59:06,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:06,952 INFO L87 Difference]: Start difference. First operand has 539 states, 380 states have (on average 1.381578947368421) internal successors, (525), 393 states have internal predecessors, (525), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:59:07,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:07,132 INFO L93 Difference]: Finished difference Result 1076 states and 1560 transitions. [2021-12-06 23:59:07,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:59:07,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-06 23:59:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:07,148 INFO L225 Difference]: With dead ends: 1076 [2021-12-06 23:59:07,149 INFO L226 Difference]: Without dead ends: 540 [2021-12-06 23:59:07,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:07,158 INFO L933 BasicCegarLoop]: 709 mSDtfsCounter, 301 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:07,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 3141 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:59:07,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-12-06 23:59:07,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 535. [2021-12-06 23:59:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 378 states have (on average 1.216931216931217) internal successors, (460), 386 states have internal predecessors, (460), 121 states have call successors, (121), 35 states have call predecessors, (121), 35 states have return successors, (119), 118 states have call predecessors, (119), 118 states have call successors, (119) [2021-12-06 23:59:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 700 transitions. [2021-12-06 23:59:07,251 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 700 transitions. Word has length 17 [2021-12-06 23:59:07,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:07,251 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 700 transitions. [2021-12-06 23:59:07,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:59:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 700 transitions. [2021-12-06 23:59:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 23:59:07,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:07,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:07,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:59:07,253 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:07,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:07,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1736454649, now seen corresponding path program 1 times [2021-12-06 23:59:07,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:07,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994510299] [2021-12-06 23:59:07,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:07,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:07,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:07,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994510299] [2021-12-06 23:59:07,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994510299] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:07,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:07,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:59:07,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435866289] [2021-12-06 23:59:07,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:07,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:59:07,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:07,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:59:07,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:07,378 INFO L87 Difference]: Start difference. First operand 535 states and 700 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:59:07,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:07,451 INFO L93 Difference]: Finished difference Result 1565 states and 2072 transitions. [2021-12-06 23:59:07,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:59:07,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-06 23:59:07,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:07,460 INFO L225 Difference]: With dead ends: 1565 [2021-12-06 23:59:07,460 INFO L226 Difference]: Without dead ends: 1048 [2021-12-06 23:59:07,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:07,464 INFO L933 BasicCegarLoop]: 973 mSDtfsCounter, 683 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:07,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 1649 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:59:07,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-12-06 23:59:07,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1045. [2021-12-06 23:59:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 738 states have (on average 1.2168021680216803) internal successors, (898), 751 states have internal predecessors, (898), 238 states have call successors, (238), 68 states have call predecessors, (238), 68 states have return successors, (240), 234 states have call predecessors, (240), 235 states have call successors, (240) [2021-12-06 23:59:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1376 transitions. [2021-12-06 23:59:07,533 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1376 transitions. Word has length 17 [2021-12-06 23:59:07,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:07,533 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 1376 transitions. [2021-12-06 23:59:07,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:59:07,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1376 transitions. [2021-12-06 23:59:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 23:59:07,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:07,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:07,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:59:07,535 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:07,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:07,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2004221234, now seen corresponding path program 1 times [2021-12-06 23:59:07,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:07,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921123124] [2021-12-06 23:59:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:07,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:07,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:07,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921123124] [2021-12-06 23:59:07,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921123124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:07,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:07,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:59:07,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215373446] [2021-12-06 23:59:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:07,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:59:07,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:07,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:59:07,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:07,658 INFO L87 Difference]: Start difference. First operand 1045 states and 1376 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:59:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:07,697 INFO L93 Difference]: Finished difference Result 1047 states and 1377 transitions. [2021-12-06 23:59:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:59:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-06 23:59:07,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:07,703 INFO L225 Difference]: With dead ends: 1047 [2021-12-06 23:59:07,703 INFO L226 Difference]: Without dead ends: 1036 [2021-12-06 23:59:07,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:07,705 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 685 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 693 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 23:59:07,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [685 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:59:07,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-12-06 23:59:07,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1031. [2021-12-06 23:59:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 728 states have (on average 1.2115384615384615) internal successors, (882), 739 states have internal predecessors, (882), 236 states have call successors, (236), 67 states have call predecessors, (236), 66 states have return successors, (238), 232 states have call predecessors, (238), 234 states have call successors, (238) [2021-12-06 23:59:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1356 transitions. [2021-12-06 23:59:07,751 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1356 transitions. Word has length 18 [2021-12-06 23:59:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:07,751 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1356 transitions. [2021-12-06 23:59:07,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:59:07,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1356 transitions. [2021-12-06 23:59:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 23:59:07,754 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:07,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:07,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:59:07,755 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:07,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1305048404, now seen corresponding path program 1 times [2021-12-06 23:59:07,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:07,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202857352] [2021-12-06 23:59:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:07,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 23:59:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 23:59:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:07,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:07,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202857352] [2021-12-06 23:59:07,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202857352] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:07,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:07,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:07,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177119686] [2021-12-06 23:59:07,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:07,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:07,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:07,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:07,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:07,857 INFO L87 Difference]: Start difference. First operand 1031 states and 1356 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:08,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:08,725 INFO L93 Difference]: Finished difference Result 2371 states and 3192 transitions. [2021-12-06 23:59:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:59:08,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2021-12-06 23:59:08,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:08,737 INFO L225 Difference]: With dead ends: 2371 [2021-12-06 23:59:08,737 INFO L226 Difference]: Without dead ends: 1352 [2021-12-06 23:59:08,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:08,743 INFO L933 BasicCegarLoop]: 763 mSDtfsCounter, 417 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:08,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1446 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 23:59:08,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2021-12-06 23:59:08,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1330. [2021-12-06 23:59:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 945 states have (on average 1.2338624338624338) internal successors, (1166), 964 states have internal predecessors, (1166), 318 states have call successors, (318), 67 states have call predecessors, (318), 66 states have return successors, (320), 312 states have call predecessors, (320), 316 states have call successors, (320) [2021-12-06 23:59:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1804 transitions. [2021-12-06 23:59:08,827 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1804 transitions. Word has length 50 [2021-12-06 23:59:08,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:08,827 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 1804 transitions. [2021-12-06 23:59:08,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1804 transitions. [2021-12-06 23:59:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-06 23:59:08,833 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:08,833 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:59:08,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:59:08,834 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:08,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:08,834 INFO L85 PathProgramCache]: Analyzing trace with hash -518166049, now seen corresponding path program 1 times [2021-12-06 23:59:08,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:08,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497259518] [2021-12-06 23:59:08,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:08,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:08,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 23:59:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 23:59:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:08,964 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:08,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:08,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497259518] [2021-12-06 23:59:08,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497259518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:08,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:08,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:08,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452795769] [2021-12-06 23:59:08,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:08,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:08,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:08,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:08,966 INFO L87 Difference]: Start difference. First operand 1330 states and 1804 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 23:59:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:10,146 INFO L93 Difference]: Finished difference Result 2687 states and 3650 transitions. [2021-12-06 23:59:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:59:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 72 [2021-12-06 23:59:10,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:10,158 INFO L225 Difference]: With dead ends: 2687 [2021-12-06 23:59:10,158 INFO L226 Difference]: Without dead ends: 1358 [2021-12-06 23:59:10,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:10,165 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 173 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:10,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 2013 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 23:59:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2021-12-06 23:59:10,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1330. [2021-12-06 23:59:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 945 states have (on average 1.2317460317460318) internal successors, (1164), 966 states have internal predecessors, (1164), 317 states have call successors, (317), 68 states have call predecessors, (317), 67 states have return successors, (317), 309 states have call predecessors, (317), 313 states have call successors, (317) [2021-12-06 23:59:10,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1798 transitions. [2021-12-06 23:59:10,259 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1798 transitions. Word has length 72 [2021-12-06 23:59:10,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:10,259 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 1798 transitions. [2021-12-06 23:59:10,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-06 23:59:10,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1798 transitions. [2021-12-06 23:59:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-06 23:59:10,265 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:10,265 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 23:59:10,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:59:10,266 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:10,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:10,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2140419496, now seen corresponding path program 1 times [2021-12-06 23:59:10,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:10,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823930023] [2021-12-06 23:59:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:10,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 23:59:10,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:10,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823930023] [2021-12-06 23:59:10,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823930023] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:10,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720818476] [2021-12-06 23:59:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:10,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:10,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:10,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:10,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 23:59:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:10,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1884 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-06 23:59:10,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:11,105 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 23:59:11,108 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 23:59:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 23:59:11,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:11,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720818476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:11,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:59:11,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-12-06 23:59:11,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69625551] [2021-12-06 23:59:11,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:11,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:59:11,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:11,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:59:11,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:59:11,159 INFO L87 Difference]: Start difference. First operand 1330 states and 1798 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-06 23:59:12,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:12,371 INFO L93 Difference]: Finished difference Result 1392 states and 1878 transitions. [2021-12-06 23:59:12,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:59:12,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 146 [2021-12-06 23:59:12,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:12,382 INFO L225 Difference]: With dead ends: 1392 [2021-12-06 23:59:12,382 INFO L226 Difference]: Without dead ends: 1332 [2021-12-06 23:59:12,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:59:12,384 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 4 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:12,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3919 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 23:59:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2021-12-06 23:59:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1330. [2021-12-06 23:59:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 945 states have (on average 1.2296296296296296) internal successors, (1162), 966 states have internal predecessors, (1162), 317 states have call successors, (317), 68 states have call predecessors, (317), 67 states have return successors, (317), 309 states have call predecessors, (317), 313 states have call successors, (317) [2021-12-06 23:59:12,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1796 transitions. [2021-12-06 23:59:12,466 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1796 transitions. Word has length 146 [2021-12-06 23:59:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:12,466 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 1796 transitions. [2021-12-06 23:59:12,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-06 23:59:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1796 transitions. [2021-12-06 23:59:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-06 23:59:12,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:12,470 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 23:59:12,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:12,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-06 23:59:12,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1832854936, now seen corresponding path program 1 times [2021-12-06 23:59:12,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:12,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144372281] [2021-12-06 23:59:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:12,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 23:59:12,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:12,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144372281] [2021-12-06 23:59:12,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144372281] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:12,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367554873] [2021-12-06 23:59:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:12,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:12,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:12,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:12,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 23:59:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:13,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 23:59:13,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-06 23:59:13,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:13,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367554873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:13,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:59:13,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 8 [2021-12-06 23:59:13,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848758203] [2021-12-06 23:59:13,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:13,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:59:13,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:13,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:59:13,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:59:13,455 INFO L87 Difference]: Start difference. First operand 1330 states and 1796 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 23:59:13,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:13,545 INFO L93 Difference]: Finished difference Result 2671 states and 3611 transitions. [2021-12-06 23:59:13,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:59:13,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2021-12-06 23:59:13,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:13,552 INFO L225 Difference]: With dead ends: 2671 [2021-12-06 23:59:13,553 INFO L226 Difference]: Without dead ends: 1351 [2021-12-06 23:59:13,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:59:13,557 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 15 mSDsluCounter, 2771 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:13,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 3469 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:59:13,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2021-12-06 23:59:13,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1337. [2021-12-06 23:59:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 950 states have (on average 1.2284210526315789) internal successors, (1167), 972 states have internal predecessors, (1167), 317 states have call successors, (317), 68 states have call predecessors, (317), 69 states have return successors, (322), 310 states have call predecessors, (322), 313 states have call successors, (322) [2021-12-06 23:59:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1806 transitions. [2021-12-06 23:59:13,604 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1806 transitions. Word has length 147 [2021-12-06 23:59:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:13,604 INFO L470 AbstractCegarLoop]: Abstraction has 1337 states and 1806 transitions. [2021-12-06 23:59:13,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 23:59:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1806 transitions. [2021-12-06 23:59:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-06 23:59:13,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:13,606 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 23:59:13,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 23:59:13,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:13,807 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:13,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:13,807 INFO L85 PathProgramCache]: Analyzing trace with hash -480950281, now seen corresponding path program 1 times [2021-12-06 23:59:13,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:13,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131943685] [2021-12-06 23:59:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:13,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:13,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 23:59:14,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:14,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131943685] [2021-12-06 23:59:14,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131943685] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:14,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392270073] [2021-12-06 23:59:14,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:14,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:14,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:14,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:14,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 23:59:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:14,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 65 conjunts are in the unsatisfiable core [2021-12-06 23:59:14,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:14,548 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 23:59:14,552 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 23:59:14,690 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 23:59:14,690 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 23 treesize of output 22 [2021-12-06 23:59:14,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:14,696 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 23:59:14,869 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 23:59:14,870 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 23 treesize of output 22 [2021-12-06 23:59:14,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:14,875 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 23:59:15,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:15,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:15,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:15,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-12-06 23:59:15,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:15,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:15,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:15,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-12-06 23:59:15,270 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 23:59:15,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 23:59:17,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392270073] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:17,880 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:59:17,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 8] total 19 [2021-12-06 23:59:17,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5394461] [2021-12-06 23:59:17,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:17,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 23:59:17,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:17,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 23:59:17,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2021-12-06 23:59:17,882 INFO L87 Difference]: Start difference. First operand 1337 states and 1806 transitions. Second operand has 19 states, 18 states have (on average 5.833333333333333) internal successors, (105), 14 states have internal predecessors, (105), 8 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (23), 8 states have call predecessors, (23), 7 states have call successors, (23) [2021-12-06 23:59:21,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:21,848 INFO L93 Difference]: Finished difference Result 2440 states and 3300 transitions. [2021-12-06 23:59:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 23:59:21,848 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.833333333333333) internal successors, (105), 14 states have internal predecessors, (105), 8 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (23), 8 states have call predecessors, (23), 7 states have call successors, (23) Word has length 147 [2021-12-06 23:59:21,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:21,854 INFO L225 Difference]: With dead ends: 2440 [2021-12-06 23:59:21,854 INFO L226 Difference]: Without dead ends: 1024 [2021-12-06 23:59:21,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 313 SyntacticMatches, 9 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2021-12-06 23:59:21,858 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 160 mSDsluCounter, 5521 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 617 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:21,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 6214 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1952 Invalid, 0 Unknown, 617 Unchecked, 3.8s Time] [2021-12-06 23:59:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2021-12-06 23:59:21,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1008. [2021-12-06 23:59:21,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 717 states have (on average 1.2259414225941423) internal successors, (879), 734 states have internal predecessors, (879), 226 states have call successors, (226), 63 states have call predecessors, (226), 64 states have return successors, (231), 221 states have call predecessors, (231), 224 states have call successors, (231) [2021-12-06 23:59:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1336 transitions. [2021-12-06 23:59:21,894 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1336 transitions. Word has length 147 [2021-12-06 23:59:21,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:21,895 INFO L470 AbstractCegarLoop]: Abstraction has 1008 states and 1336 transitions. [2021-12-06 23:59:21,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.833333333333333) internal successors, (105), 14 states have internal predecessors, (105), 8 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (23), 8 states have call predecessors, (23), 7 states have call successors, (23) [2021-12-06 23:59:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1336 transitions. [2021-12-06 23:59:21,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-06 23:59:21,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:21,897 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 23:59:21,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 23:59:22,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:22,098 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:22,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:22,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1300549654, now seen corresponding path program 1 times [2021-12-06 23:59:22,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:22,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989210977] [2021-12-06 23:59:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:22,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-06 23:59:22,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:22,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989210977] [2021-12-06 23:59:22,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989210977] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:22,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570507478] [2021-12-06 23:59:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:22,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:22,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:22,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:22,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 23:59:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 23:59:22,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-06 23:59:22,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-06 23:59:23,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570507478] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:23,184 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:59:23,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 16 [2021-12-06 23:59:23,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911348501] [2021-12-06 23:59:23,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:23,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 23:59:23,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:23,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 23:59:23,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-12-06 23:59:23,186 INFO L87 Difference]: Start difference. First operand 1008 states and 1336 transitions. Second operand has 16 states, 16 states have (on average 9.875) internal successors, (158), 12 states have internal predecessors, (158), 8 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (41), 9 states have call predecessors, (41), 8 states have call successors, (41) [2021-12-06 23:59:27,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:27,843 INFO L93 Difference]: Finished difference Result 2083 states and 2784 transitions. [2021-12-06 23:59:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 23:59:27,844 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 12 states have internal predecessors, (158), 8 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (41), 9 states have call predecessors, (41), 8 states have call successors, (41) Word has length 147 [2021-12-06 23:59:27,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:27,850 INFO L225 Difference]: With dead ends: 2083 [2021-12-06 23:59:27,851 INFO L226 Difference]: Without dead ends: 1389 [2021-12-06 23:59:27,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=269, Invalid=853, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 23:59:27,853 INFO L933 BasicCegarLoop]: 915 mSDtfsCounter, 1971 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 3627 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 4671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 3627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:27,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2102 Valid, 5469 Invalid, 4671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1044 Valid, 3627 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-06 23:59:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2021-12-06 23:59:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1364. [2021-12-06 23:59:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 967 states have (on average 1.2223371251292658) internal successors, (1182), 989 states have internal predecessors, (1182), 302 states have call successors, (302), 92 states have call predecessors, (302), 94 states have return successors, (329), 297 states have call predecessors, (329), 300 states have call successors, (329) [2021-12-06 23:59:27,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1813 transitions. [2021-12-06 23:59:27,903 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1813 transitions. Word has length 147 [2021-12-06 23:59:27,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:27,903 INFO L470 AbstractCegarLoop]: Abstraction has 1364 states and 1813 transitions. [2021-12-06 23:59:27,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 12 states have internal predecessors, (158), 8 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (41), 9 states have call predecessors, (41), 8 states have call successors, (41) [2021-12-06 23:59:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1813 transitions. [2021-12-06 23:59:27,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 23:59:27,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:27,906 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 23:59:27,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 23:59:28,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-06 23:59:28,106 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:28,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1296056406, now seen corresponding path program 1 times [2021-12-06 23:59:28,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:28,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639017688] [2021-12-06 23:59:28,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:28,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 23:59:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,336 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-06 23:59:28,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:28,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639017688] [2021-12-06 23:59:28,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639017688] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:28,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533997258] [2021-12-06 23:59:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:28,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:28,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:28,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:28,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 23:59:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1948 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 23:59:28,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:28,810 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-06 23:59:28,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:28,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533997258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:28,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:59:28,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 10 [2021-12-06 23:59:28,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022597689] [2021-12-06 23:59:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:28,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:59:28,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:28,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:59:28,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:59:28,812 INFO L87 Difference]: Start difference. First operand 1364 states and 1813 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 23:59:28,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:28,874 INFO L93 Difference]: Finished difference Result 2402 states and 3217 transitions. [2021-12-06 23:59:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:59:28,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2021-12-06 23:59:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:28,882 INFO L225 Difference]: With dead ends: 2402 [2021-12-06 23:59:28,882 INFO L226 Difference]: Without dead ends: 1364 [2021-12-06 23:59:28,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 192 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:59:28,885 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:28,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4130 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:59:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2021-12-06 23:59:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1362. [2021-12-06 23:59:28,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 965 states have (on average 1.2217616580310882) internal successors, (1179), 988 states have internal predecessors, (1179), 302 states have call successors, (302), 92 states have call predecessors, (302), 94 states have return successors, (329), 296 states have call predecessors, (329), 300 states have call successors, (329) [2021-12-06 23:59:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1810 transitions. [2021-12-06 23:59:28,935 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1810 transitions. Word has length 157 [2021-12-06 23:59:28,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:28,935 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 1810 transitions. [2021-12-06 23:59:28,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 23:59:28,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1810 transitions. [2021-12-06 23:59:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 23:59:28,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:28,938 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 23:59:28,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 23:59:29,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 23:59:29,138 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:29,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:29,139 INFO L85 PathProgramCache]: Analyzing trace with hash -657079690, now seen corresponding path program 2 times [2021-12-06 23:59:29,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:29,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386578074] [2021-12-06 23:59:29,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:29,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 23:59:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 23:59:29,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:29,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386578074] [2021-12-06 23:59:29,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386578074] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:29,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048936647] [2021-12-06 23:59:29,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 23:59:29,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:29,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:29,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:29,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 23:59:29,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 23:59:29,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 23:59:29,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 23:59:29,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-06 23:59:30,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-06 23:59:30,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048936647] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:30,386 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:59:30,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 14] total 26 [2021-12-06 23:59:30,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017772681] [2021-12-06 23:59:30,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:30,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-06 23:59:30,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:30,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-06 23:59:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2021-12-06 23:59:30,388 INFO L87 Difference]: Start difference. First operand 1362 states and 1810 transitions. Second operand has 26 states, 25 states have (on average 9.2) internal successors, (230), 22 states have internal predecessors, (230), 14 states have call successors, (47), 14 states have call predecessors, (47), 10 states have return successors, (43), 11 states have call predecessors, (43), 12 states have call successors, (43) [2021-12-06 23:59:38,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:38,893 INFO L93 Difference]: Finished difference Result 3544 states and 4740 transitions. [2021-12-06 23:59:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-12-06 23:59:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 9.2) internal successors, (230), 22 states have internal predecessors, (230), 14 states have call successors, (47), 14 states have call predecessors, (47), 10 states have return successors, (43), 11 states have call predecessors, (43), 12 states have call successors, (43) Word has length 157 [2021-12-06 23:59:38,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:38,909 INFO L225 Difference]: With dead ends: 3544 [2021-12-06 23:59:38,909 INFO L226 Difference]: Without dead ends: 3455 [2021-12-06 23:59:38,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=944, Invalid=3088, Unknown=0, NotChecked=0, Total=4032 [2021-12-06 23:59:38,912 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 6006 mSDsluCounter, 5942 mSDsCounter, 0 mSdLazyCounter, 7712 mSolverCounterSat, 3512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 6928 SdHoareTripleChecker+Invalid, 11224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3512 IncrementalHoareTripleChecker+Valid, 7712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:38,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6307 Valid, 6928 Invalid, 11224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3512 Valid, 7712 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2021-12-06 23:59:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455 states. [2021-12-06 23:59:39,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3455 to 3386. [2021-12-06 23:59:39,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 2393 states have (on average 1.226076055160886) internal successors, (2934), 2454 states have internal predecessors, (2934), 768 states have call successors, (768), 214 states have call predecessors, (768), 224 states have return successors, (853), 754 states have call predecessors, (853), 766 states have call successors, (853) [2021-12-06 23:59:39,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 4555 transitions. [2021-12-06 23:59:39,023 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 4555 transitions. Word has length 157 [2021-12-06 23:59:39,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:39,024 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 4555 transitions. [2021-12-06 23:59:39,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 9.2) internal successors, (230), 22 states have internal predecessors, (230), 14 states have call successors, (47), 14 states have call predecessors, (47), 10 states have return successors, (43), 11 states have call predecessors, (43), 12 states have call successors, (43) [2021-12-06 23:59:39,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 4555 transitions. [2021-12-06 23:59:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 23:59:39,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:39,027 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 23:59:39,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 23:59:39,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 23:59:39,227 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:39,228 INFO L85 PathProgramCache]: Analyzing trace with hash 507809139, now seen corresponding path program 1 times [2021-12-06 23:59:39,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:39,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176727099] [2021-12-06 23:59:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:39,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 23:59:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 23:59:39,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:39,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176727099] [2021-12-06 23:59:39,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176727099] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:39,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530027337] [2021-12-06 23:59:39,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:39,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:39,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:39,511 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:39,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 23:59:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 49 conjunts are in the unsatisfiable core [2021-12-06 23:59:39,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:39,957 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 23:59:39,959 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 23:59:40,045 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 23:59:40,046 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 23 treesize of output 22 [2021-12-06 23:59:40,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:40,049 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 23:59:40,172 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 23:59:40,172 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 23 treesize of output 22 [2021-12-06 23:59:40,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:40,177 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 23:59:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 23:59:40,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 23:59:40,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530027337] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:40,483 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:59:40,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 17 [2021-12-06 23:59:40,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167612467] [2021-12-06 23:59:40,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:40,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 23:59:40,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:40,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 23:59:40,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-12-06 23:59:40,484 INFO L87 Difference]: Start difference. First operand 3386 states and 4555 transitions. Second operand has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (29), 6 states have call predecessors, (29), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2021-12-06 23:59:43,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:43,161 INFO L93 Difference]: Finished difference Result 5887 states and 7901 transitions. [2021-12-06 23:59:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 23:59:43,162 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (29), 6 states have call predecessors, (29), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 158 [2021-12-06 23:59:43,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:43,174 INFO L225 Difference]: With dead ends: 5887 [2021-12-06 23:59:43,174 INFO L226 Difference]: Without dead ends: 2739 [2021-12-06 23:59:43,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 340 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-12-06 23:59:43,181 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 162 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:43,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 4519 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1438 Invalid, 0 Unknown, 293 Unchecked, 2.5s Time] [2021-12-06 23:59:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2021-12-06 23:59:43,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2739. [2021-12-06 23:59:43,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 1935 states have (on average 1.2227390180878552) internal successors, (2366), 1984 states have internal predecessors, (2366), 611 states have call successors, (611), 185 states have call predecessors, (611), 192 states have return successors, (672), 599 states have call predecessors, (672), 609 states have call successors, (672) [2021-12-06 23:59:43,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 3649 transitions. [2021-12-06 23:59:43,269 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 3649 transitions. Word has length 158 [2021-12-06 23:59:43,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:43,270 INFO L470 AbstractCegarLoop]: Abstraction has 2739 states and 3649 transitions. [2021-12-06 23:59:43,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (29), 6 states have call predecessors, (29), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2021-12-06 23:59:43,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 3649 transitions. [2021-12-06 23:59:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-06 23:59:43,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:43,272 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 23:59:43,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 23:59:43,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 23:59:43,473 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:43,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:43,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1436807920, now seen corresponding path program 1 times [2021-12-06 23:59:43,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:43,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009702257] [2021-12-06 23:59:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:43,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 23:59:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 23:59:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-06 23:59:43,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:43,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009702257] [2021-12-06 23:59:43,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009702257] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:43,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759358952] [2021-12-06 23:59:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:43,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:43,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:43,720 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:43,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 23:59:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:44,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-06 23:59:44,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:44,250 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 23:59:44,252 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 23:59:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-06 23:59:44,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-06 23:59:44,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759358952] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:44,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:59:44,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 8] total 12 [2021-12-06 23:59:44,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521311096] [2021-12-06 23:59:44,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:44,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:59:44,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:44,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:59:44,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:59:44,414 INFO L87 Difference]: Start difference. First operand 2739 states and 3649 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:59:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:45,265 INFO L93 Difference]: Finished difference Result 2872 states and 3811 transitions. [2021-12-06 23:59:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:59:45,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 168 [2021-12-06 23:59:45,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:45,278 INFO L225 Difference]: With dead ends: 2872 [2021-12-06 23:59:45,278 INFO L226 Difference]: Without dead ends: 2739 [2021-12-06 23:59:45,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 370 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-06 23:59:45,280 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 7 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:45,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 3319 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 23:59:45,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2021-12-06 23:59:45,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2739. [2021-12-06 23:59:45,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 1935 states have (on average 1.2217054263565892) internal successors, (2364), 1984 states have internal predecessors, (2364), 611 states have call successors, (611), 185 states have call predecessors, (611), 192 states have return successors, (672), 599 states have call predecessors, (672), 609 states have call successors, (672) [2021-12-06 23:59:45,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 3647 transitions. [2021-12-06 23:59:45,365 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 3647 transitions. Word has length 168 [2021-12-06 23:59:45,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:45,366 INFO L470 AbstractCegarLoop]: Abstraction has 2739 states and 3647 transitions. [2021-12-06 23:59:45,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:59:45,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 3647 transitions. [2021-12-06 23:59:45,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-06 23:59:45,368 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:45,369 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 23:59:45,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 23:59:45,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:45,571 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:45,572 INFO L85 PathProgramCache]: Analyzing trace with hash 2032139182, now seen corresponding path program 1 times [2021-12-06 23:59:45,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:45,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859333776] [2021-12-06 23:59:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:45,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 23:59:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 23:59:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:45,860 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-06 23:59:45,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:45,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859333776] [2021-12-06 23:59:45,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859333776] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:45,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046646088] [2021-12-06 23:59:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:45,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:45,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:45,861 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:45,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 23:59:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:46,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-06 23:59:46,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:46,293 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 23:59:46,296 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 23:59:46,430 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-06 23:59:46,431 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 23 treesize of output 22 [2021-12-06 23:59:46,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:46,435 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 23:59:46,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:46,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-12-06 23:59:46,857 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-06 23:59:46,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2021-12-06 23:59:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 55 proven. 8 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-06 23:59:46,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-06 23:59:47,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046646088] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:47,064 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:59:47,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 8] total 17 [2021-12-06 23:59:47,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723973885] [2021-12-06 23:59:47,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:47,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 23:59:47,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:47,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 23:59:47,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-06 23:59:47,066 INFO L87 Difference]: Start difference. First operand 2739 states and 3647 transitions. Second operand has 17 states, 16 states have (on average 7.6875) internal successors, (123), 11 states have internal predecessors, (123), 7 states have call successors, (32), 8 states have call predecessors, (32), 5 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2021-12-06 23:59:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:49,833 INFO L93 Difference]: Finished difference Result 4564 states and 6041 transitions. [2021-12-06 23:59:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 23:59:49,833 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.6875) internal successors, (123), 11 states have internal predecessors, (123), 7 states have call successors, (32), 8 states have call predecessors, (32), 5 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) Word has length 169 [2021-12-06 23:59:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:49,843 INFO L225 Difference]: With dead ends: 4564 [2021-12-06 23:59:49,843 INFO L226 Difference]: Without dead ends: 2088 [2021-12-06 23:59:49,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 364 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2021-12-06 23:59:49,848 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 314 mSDsluCounter, 4645 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 5324 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 285 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:49,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 5324 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1597 Invalid, 0 Unknown, 285 Unchecked, 2.6s Time] [2021-12-06 23:59:49,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2021-12-06 23:59:49,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2021-12-06 23:59:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1475 states have (on average 1.2169491525423728) internal successors, (1795), 1512 states have internal predecessors, (1795), 452 states have call successors, (452), 156 states have call predecessors, (452), 160 states have return successors, (488), 442 states have call predecessors, (488), 450 states have call successors, (488) [2021-12-06 23:59:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2735 transitions. [2021-12-06 23:59:49,920 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2735 transitions. Word has length 169 [2021-12-06 23:59:49,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:49,921 INFO L470 AbstractCegarLoop]: Abstraction has 2088 states and 2735 transitions. [2021-12-06 23:59:49,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.6875) internal successors, (123), 11 states have internal predecessors, (123), 7 states have call successors, (32), 8 states have call predecessors, (32), 5 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2021-12-06 23:59:49,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2735 transitions. [2021-12-06 23:59:49,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-06 23:59:49,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:49,923 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 23:59:49,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 23:59:50,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-06 23:59:50,125 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1191246487, now seen corresponding path program 1 times [2021-12-06 23:59:50,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:50,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665156958] [2021-12-06 23:59:50,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:50,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 23:59:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 23:59:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 23:59:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-12-06 23:59:50,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:50,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665156958] [2021-12-06 23:59:50,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665156958] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:50,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666762494] [2021-12-06 23:59:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:50,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:50,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:50,385 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:50,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 23:59:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 2004 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-06 23:59:50,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:50,981 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 23:59:50,983 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 23:59:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-12-06 23:59:50,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-12-06 23:59:51,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666762494] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:51,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:59:51,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 8] total 12 [2021-12-06 23:59:51,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668957588] [2021-12-06 23:59:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:51,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:59:51,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:51,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:59:51,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:59:51,151 INFO L87 Difference]: Start difference. First operand 2088 states and 2735 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:59:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:51,852 INFO L93 Difference]: Finished difference Result 2154 states and 2794 transitions. [2021-12-06 23:59:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:59:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 179 [2021-12-06 23:59:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:51,861 INFO L225 Difference]: With dead ends: 2154 [2021-12-06 23:59:51,861 INFO L226 Difference]: Without dead ends: 2059 [2021-12-06 23:59:51,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 392 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-06 23:59:51,863 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 8 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:51,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 3273 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 23:59:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2021-12-06 23:59:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2059. [2021-12-06 23:59:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 1460 states have (on average 1.2184931506849315) internal successors, (1779), 1497 states have internal predecessors, (1779), 438 states have call successors, (438), 156 states have call predecessors, (438), 160 states have return successors, (464), 428 states have call predecessors, (464), 436 states have call successors, (464) [2021-12-06 23:59:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2681 transitions. [2021-12-06 23:59:51,916 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2681 transitions. Word has length 179 [2021-12-06 23:59:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:51,916 INFO L470 AbstractCegarLoop]: Abstraction has 2059 states and 2681 transitions. [2021-12-06 23:59:51,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:59:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2681 transitions. [2021-12-06 23:59:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-06 23:59:51,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:51,919 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:51,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 23:59:52,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:52,119 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:52,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash -730439303, now seen corresponding path program 1 times [2021-12-06 23:59:52,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:52,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646049768] [2021-12-06 23:59:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:52,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 23:59:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 23:59:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 23:59:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 23:59:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 23:59:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 23:59:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:59:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 23:59:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 23:59:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:59:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-06 23:59:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 23:59:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-12-06 23:59:52,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:52,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646049768] [2021-12-06 23:59:52,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646049768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:52,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:52,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:59:52,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213313823] [2021-12-06 23:59:52,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:52,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:59:52,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:52,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:59:52,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:59:52,404 INFO L87 Difference]: Start difference. First operand 2059 states and 2681 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-06 23:59:55,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:55,035 INFO L93 Difference]: Finished difference Result 3837 states and 5036 transitions. [2021-12-06 23:59:55,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:59:55,035 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 251 [2021-12-06 23:59:55,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:55,049 INFO L225 Difference]: With dead ends: 3837 [2021-12-06 23:59:55,049 INFO L226 Difference]: Without dead ends: 2092 [2021-12-06 23:59:55,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:59:55,055 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 423 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:55,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2941 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 23:59:55,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2021-12-06 23:59:55,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2052. [2021-12-06 23:59:55,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2052 states, 1455 states have (on average 1.2192439862542956) internal successors, (1774), 1492 states have internal predecessors, (1774), 438 states have call successors, (438), 156 states have call predecessors, (438), 158 states have return successors, (461), 426 states have call predecessors, (461), 436 states have call successors, (461) [2021-12-06 23:59:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 2673 transitions. [2021-12-06 23:59:55,135 INFO L78 Accepts]: Start accepts. Automaton has 2052 states and 2673 transitions. Word has length 251 [2021-12-06 23:59:55,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:55,135 INFO L470 AbstractCegarLoop]: Abstraction has 2052 states and 2673 transitions. [2021-12-06 23:59:55,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-06 23:59:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2052 states and 2673 transitions. [2021-12-06 23:59:55,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-06 23:59:55,138 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:55,138 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:55,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 23:59:55,138 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:55,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:55,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1586354599, now seen corresponding path program 1 times [2021-12-06 23:59:55,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:55,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769283666] [2021-12-06 23:59:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:55,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 23:59:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 23:59:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 23:59:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 23:59:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 23:59:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 23:59:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:59:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 23:59:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 23:59:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:59:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-06 23:59:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 23:59:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-12-06 23:59:55,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:55,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769283666] [2021-12-06 23:59:55,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769283666] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:55,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:55,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:59:55,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772043489] [2021-12-06 23:59:55,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:55,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:59:55,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:55,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:59:55,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:55,466 INFO L87 Difference]: Start difference. First operand 2052 states and 2673 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-06 23:59:57,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:57,276 INFO L93 Difference]: Finished difference Result 2112 states and 2772 transitions. [2021-12-06 23:59:57,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:59:57,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 251 [2021-12-06 23:59:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:57,284 INFO L225 Difference]: With dead ends: 2112 [2021-12-06 23:59:57,284 INFO L226 Difference]: Without dead ends: 2102 [2021-12-06 23:59:57,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:59:57,285 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 1114 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:57,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 2055 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-06 23:59:57,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2021-12-06 23:59:57,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 2052. [2021-12-06 23:59:57,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2052 states, 1455 states have (on average 1.2185567010309277) internal successors, (1773), 1492 states have internal predecessors, (1773), 438 states have call successors, (438), 156 states have call predecessors, (438), 158 states have return successors, (461), 426 states have call predecessors, (461), 436 states have call successors, (461) [2021-12-06 23:59:57,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 2672 transitions. [2021-12-06 23:59:57,348 INFO L78 Accepts]: Start accepts. Automaton has 2052 states and 2672 transitions. Word has length 251 [2021-12-06 23:59:57,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:57,349 INFO L470 AbstractCegarLoop]: Abstraction has 2052 states and 2672 transitions. [2021-12-06 23:59:57,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-06 23:59:57,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2052 states and 2672 transitions. [2021-12-06 23:59:57,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-12-06 23:59:57,351 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:57,351 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 23:59:57,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 23:59:57,351 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:57,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:57,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1150769733, now seen corresponding path program 1 times [2021-12-06 23:59:57,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:57,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097412340] [2021-12-06 23:59:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:57,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 23:59:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 23:59:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 23:59:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 23:59:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 23:59:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 23:59:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:59:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 23:59:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 23:59:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:59:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-06 23:59:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-06 23:59:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-12-06 23:59:57,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:57,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097412340] [2021-12-06 23:59:57,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097412340] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:57,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356828220] [2021-12-06 23:59:57,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:57,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:57,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:57,736 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:57,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 23:59:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:58,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 3025 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 23:59:58,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:58,365 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-12-06 23:59:58,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:58,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356828220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:58,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:59:58,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2021-12-06 23:59:58,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370702363] [2021-12-06 23:59:58,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:58,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:58,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:58,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:58,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:59:58,367 INFO L87 Difference]: Start difference. First operand 2052 states and 2672 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-06 23:59:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:58,567 INFO L93 Difference]: Finished difference Result 3782 states and 4937 transitions. [2021-12-06 23:59:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:59:58,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 256 [2021-12-06 23:59:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:58,574 INFO L225 Difference]: With dead ends: 3782 [2021-12-06 23:59:58,574 INFO L226 Difference]: Without dead ends: 2056 [2021-12-06 23:59:58,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:59:58,578 INFO L933 BasicCegarLoop]: 888 mSDtfsCounter, 373 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:58,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 1486 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:59:58,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2021-12-06 23:59:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2052. [2021-12-06 23:59:58,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2052 states, 1455 states have (on average 1.2171821305841923) internal successors, (1771), 1492 states have internal predecessors, (1771), 438 states have call successors, (438), 156 states have call predecessors, (438), 158 states have return successors, (461), 426 states have call predecessors, (461), 436 states have call successors, (461) [2021-12-06 23:59:58,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 2670 transitions. [2021-12-06 23:59:58,647 INFO L78 Accepts]: Start accepts. Automaton has 2052 states and 2670 transitions. Word has length 256 [2021-12-06 23:59:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:58,647 INFO L470 AbstractCegarLoop]: Abstraction has 2052 states and 2670 transitions. [2021-12-06 23:59:58,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-06 23:59:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2052 states and 2670 transitions. [2021-12-06 23:59:58,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-12-06 23:59:58,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:58,650 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:58,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 23:59:58,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 23:59:58,851 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:58,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:58,853 INFO L85 PathProgramCache]: Analyzing trace with hash -389631941, now seen corresponding path program 1 times [2021-12-06 23:59:58,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:58,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342809530] [2021-12-06 23:59:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:58,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 23:59:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 23:59:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:59:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 23:59:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 23:59:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 23:59:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 23:59:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 23:59:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 23:59:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 23:59:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 23:59:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 23:59:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 23:59:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-06 23:59:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 23:59:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 23:59:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 23:59:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:59:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 23:59:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 23:59:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:59:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-06 23:59:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-06 23:59:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-06 23:59:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-06 23:59:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-06 23:59:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-06 23:59:59,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:59,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342809530] [2021-12-06 23:59:59,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342809530] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:59,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395094836] [2021-12-06 23:59:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:59,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:59,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:59,193 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:59,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 23:59:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:59,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 3122 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 23:59:59,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:00,033 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-07 00:00:00,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:00,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395094836] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:00,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:00:00,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-12-07 00:00:00,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201592600] [2021-12-07 00:00:00,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:00,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:00:00,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:00:00,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:00:00,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:00:00,035 INFO L87 Difference]: Start difference. First operand 2052 states and 2670 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-07 00:00:00,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:00,198 INFO L93 Difference]: Finished difference Result 3786 states and 4955 transitions. [2021-12-07 00:00:00,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:00:00,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 276 [2021-12-07 00:00:00,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:00,204 INFO L225 Difference]: With dead ends: 3786 [2021-12-07 00:00:00,204 INFO L226 Difference]: Without dead ends: 2060 [2021-12-07 00:00:00,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:00:00,209 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 12 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:00,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 1905 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:00:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2021-12-07 00:00:00,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 2060. [2021-12-07 00:00:00,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 1462 states have (on average 1.216826265389877) internal successors, (1779), 1499 states have internal predecessors, (1779), 438 states have call successors, (438), 157 states have call predecessors, (438), 159 states have return successors, (461), 426 states have call predecessors, (461), 436 states have call successors, (461) [2021-12-07 00:00:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2678 transitions. [2021-12-07 00:00:00,273 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2678 transitions. Word has length 276 [2021-12-07 00:00:00,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:00,273 INFO L470 AbstractCegarLoop]: Abstraction has 2060 states and 2678 transitions. [2021-12-07 00:00:00,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-07 00:00:00,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2678 transitions. [2021-12-07 00:00:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-12-07 00:00:00,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:00,276 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:00,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-07 00:00:00,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:00,476 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:00,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:00,477 INFO L85 PathProgramCache]: Analyzing trace with hash -246260549, now seen corresponding path program 1 times [2021-12-07 00:00:00,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:00,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54166302] [2021-12-07 00:00:00,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:00,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:00:00,722 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:00:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:00:03,058 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:00:03,059 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:00:03,059 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:00:03,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:00:03,063 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:03,065 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:00:03,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:00:03 BoogieIcfgContainer [2021-12-07 00:00:03,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:00:03,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:00:03,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:00:03,279 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:00:03,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:06" (3/4) ... [2021-12-07 00:00:03,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 00:00:03,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:00:03,283 INFO L158 Benchmark]: Toolchain (without parser) took 60179.84ms. Allocated memory was 113.2MB in the beginning and 625.0MB in the end (delta: 511.7MB). Free memory was 67.8MB in the beginning and 186.8MB in the end (delta: -119.0MB). Peak memory consumption was 395.1MB. Max. memory is 16.1GB. [2021-12-07 00:00:03,283 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:00:03,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1355.99ms. Allocated memory was 113.2MB in the beginning and 169.9MB in the end (delta: 56.6MB). Free memory was 67.6MB in the beginning and 91.9MB in the end (delta: -24.3MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2021-12-07 00:00:03,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.19ms. Allocated memory is still 169.9MB. Free memory was 91.9MB in the beginning and 81.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:00:03,284 INFO L158 Benchmark]: Boogie Preprocessor took 98.20ms. Allocated memory is still 169.9MB. Free memory was 81.4MB in the beginning and 69.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 00:00:03,284 INFO L158 Benchmark]: RCFGBuilder took 1771.52ms. Allocated memory is still 169.9MB. Free memory was 69.8MB in the beginning and 84.5MB in the end (delta: -14.7MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2021-12-07 00:00:03,284 INFO L158 Benchmark]: TraceAbstraction took 56839.97ms. Allocated memory was 169.9MB in the beginning and 625.0MB in the end (delta: 455.1MB). Free memory was 83.5MB in the beginning and 186.8MB in the end (delta: -103.3MB). Peak memory consumption was 365.3MB. Max. memory is 16.1GB. [2021-12-07 00:00:03,285 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 625.0MB. Free memory is still 186.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:00:03,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1355.99ms. Allocated memory was 113.2MB in the beginning and 169.9MB in the end (delta: 56.6MB). Free memory was 67.6MB in the beginning and 91.9MB in the end (delta: -24.3MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.19ms. Allocated memory is still 169.9MB. Free memory was 91.9MB in the beginning and 81.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.20ms. Allocated memory is still 169.9MB. Free memory was 81.4MB in the beginning and 69.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1771.52ms. Allocated memory is still 169.9MB. Free memory was 69.8MB in the beginning and 84.5MB in the end (delta: -14.7MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 56839.97ms. Allocated memory was 169.9MB in the beginning and 625.0MB in the end (delta: 455.1MB). Free memory was 83.5MB in the beginning and 186.8MB in the end (delta: -103.3MB). Peak memory consumption was 365.3MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 625.0MB. Free memory is still 186.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6946]: 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 6635, overapproximation of bitwiseOr at line 5696, overapproximation of shiftLeft at line 5141, overapproximation of bitwiseAnd at line 4928. Possible FailurePath: [L5170-L5181] static char const __mod_author63[40] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'a', (char const )'u', (char const )'t', (char const )'h', (char const )'o', (char const )'r', (char const )'=', (char const )'V', (char const )'o', (char const )'j', (char const )'t', (char const )'e', (char const )'c', (char const )'h', (char const )' ', (char const )'P', (char const )'a', (char const )'v', (char const )'l', (char const )'i', (char const )'k', (char const )' ', (char const )'<', (char const )'v', (char const )'o', (char const )'j', (char const )'t', (char const )'e', (char const )'c', (char const )'h', (char const )'@', (char const )'s', (char const )'u', (char const )'s', (char const )'e', (char const )'.', (char const )'c', (char const )'z', (char const )'>', (char const )'\000'}; [L5182-L5197] static char const __mod_description64[53] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'d', (char const )'e', (char const )'s', (char const )'c', (char const )'r', (char const )'i', (char const )'p', (char const )'t', (char const )'i', (char const )'o', (char const )'n', (char const )'=', (char const )'C', (char const )'A', (char const )'T', (char const )'C', (char const )' ', (char const )'E', (char const )'L', (char const )'1', (char const )'2', (char const )'1', (char const )'0', (char const )'A', (char const )' ', (char const )'N', (char const )'e', (char const )'t', (char const )'M', (char const )'a', (char const )'t', (char const )'e', (char const )' ', (char const )'U', (char const )'S', (char const )'B', (char const )' ', (char const )'E', (char const )'t', (char const )'h', (char const )'e', (char const )'r', (char const )'n', (char const )'e', (char const )'t', (char const )' ', (char const )'d', (char const )'r', (char const )'i', (char const )'v', (char const )'e', (char const )'r', (char const )'\000'}; [L5198-L5202] static char const __mod_license65[12] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'l', (char const )'i', (char const )'c', (char const )'e', (char const )'n', (char const )'s', (char const )'e', (char const )'=', (char const )'G', (char const )'P', (char const )'L', (char const )'\000'}; [L5203-L5204] static char const driver_name[5] = { (char const )'c', (char const )'a', (char const )'t', (char const )'c', (char const )'\000'}; [L6129-L6176] static struct ethtool_ops const ops = {& catc_get_settings, (int (*)(struct net_device * , struct ethtool_cmd * ))0, & catc_get_drvinfo, (int (*)(struct net_device * ))0, (void (*)(struct net_device * , struct ethtool_regs * , void * ))0, (void (*)(struct net_device * , struct ethtool_wolinfo * ))0, (int (*)(struct net_device * , struct ethtool_wolinfo * ))0, (u32 (*)(struct net_device * ))0, (void (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * ))0, & ethtool_op_get_link, (int (*)(struct net_device * ))0, (int (*)(struct net_device * , struct ethtool_eeprom * , u8 * ))0, (int (*)(struct net_device * , struct ethtool_eeprom * , u8 * ))0, (int (*)(struct net_device * , struct ethtool_coalesce * ))0, (int (*)(struct net_device * , struct ethtool_coalesce * ))0, (void (*)(struct net_device * , struct ethtool_ringparam * ))0, (int (*)(struct net_device * , struct ethtool_ringparam * ))0, (void (*)(struct net_device * , struct ethtool_pauseparam * ))0, (int (*)(struct net_device * , struct ethtool_pauseparam * ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (void (*)(struct net_device * , struct ethtool_test * , u64 * ))0, (void (*)(struct net_device * , u32 stringset , u8 * ))0, (int (*)(struct net_device * , enum ethtool_phys_id_state ))0, (void (*)(struct net_device * , struct ethtool_stats * , u64 * ))0, (int (*)(struct net_device * ))0, (void (*)(struct net_device * ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (u32 (*)(struct net_device * ))0, (int (*)(struct net_device * , u32 ))0, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , struct ethtool_rxnfc * , void * ))0, (int (*)(struct net_device * , struct ethtool_rxnfc * ))0, (int (*)(struct net_device * , struct ethtool_flash * ))0, (int (*)(struct net_device * , u32 * ))0, (int (*)(struct net_device * , struct ethtool_rx_ntuple * ))0, (int (*)(struct net_device * , u32 stringset , void * ))0, (int (*)(struct net_device * , struct ethtool_rxfh_indir * ))0, (int (*)(struct net_device * , struct ethtool_rxfh_indir const * ))0, (void (*)(struct net_device * , struct ethtool_channels * ))0, (int (*)(struct net_device * , struct ethtool_channels * ))0, (int (*)(struct net_device * , struct ethtool_dump * ))0, (int (*)(struct net_device * , struct ethtool_dump * , void * ))0, (int (*)(struct net_device * , struct ethtool_dump * ))0}; [L6231-L6269] static struct net_device_ops const catc_netdev_ops = {(int (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, & catc_open, & catc_stop, & catc_start_xmit, (u16 (*)(struct net_device *dev , struct sk_buff *skb ))0, (void (*)(struct net_device *dev , int flags ))0, (void (*)(struct net_device *dev ))0, & catc_set_multicast_list, & eth_mac_addr, & eth_validate_addr, (int (*)(struct net_device *dev , struct ifreq *ifr , int cmd ))0, (int (*)(struct net_device *dev , struct ifmap *map ))0, & eth_change_mtu, (int (*)(struct net_device *dev , struct neigh_parms * ))0, & catc_tx_timeout, (struct rtnl_link_stats64 *(*)(struct net_device *dev , struct rtnl_link_stats64 *storage ))0, (struct net_device_stats *(*)(struct net_device *dev ))0, (void (*)(struct net_device *dev , struct vlan_group *grp ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct netpoll_info *info ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , int queue , u8 *mac ))0, (int (*)(struct net_device *dev , int queue , u16 vlan , u8 qos ))0, (int (*)(struct net_device *dev , int vf , int rate ))0, (int (*)(struct net_device *dev , int vf , struct ifla_vf_info *ivf ))0, (int (*)(struct net_device *dev , int vf , struct nlattr **port ))0, (int (*)(struct net_device *dev , int vf , struct sk_buff *skb ))0, (int (*)(struct net_device *dev , u8 tc ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u16 xid ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u64 *wwn , int type ))0, (int (*)(struct net_device *dev , struct sk_buff const *skb , u16 rxq_index , u32 flow_id ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (u32 (*)(struct net_device *dev , u32 features ))0, (int (*)(struct net_device *dev , u32 features ))0}; [L6270] static struct lock_class_key __key___9 ; [L6271] static struct lock_class_key __key___10 ; [L6272] static struct lock_class_key __key___11 ; [L6684-L6692] static struct usb_device_id catc_id_table[3] = { {(__u16 )3, (__u16 )1059, (__u16 )10, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {(__u16 )3, (__u16 )1059, (__u16 )12, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {(__u16 )3, (__u16 )2257, (__u16 )1, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6695-L6710] static struct usb_driver catc_driver = {driver_name, & catc_probe, & catc_disconnect, (int (*)(struct usb_interface *intf , unsigned int code , void *buf ))0, (int (*)(struct usb_interface *intf , pm_message_t message ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (struct usb_device_id const *)(catc_id_table), {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}, {{(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device *dev ))0, (int (*)(struct device *dev ))0, (void (*)(struct device *dev ))0, (int (*)(struct device *dev , pm_message_t state ))0, (int (*)(struct device *dev ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, 0}, 0U, 0U, 0U}; [L6763] int LDV_IN_INTERRUPT ; [L6764] static int res_catc_open_15 ; [L6765] static int res_catc_stop_16 ; [L6766] static int res_catc_probe_17 ; [L6959] int ldv_urb_state = 0; [L6960] int ldv_coherent_state = 0; VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6768] struct net_device *var_group1 ; [L6769] struct ethtool_drvinfo *var_group2 ; [L6770] struct ethtool_cmd *var_group3 ; [L6771] struct sk_buff *var_group4 ; [L6772] struct usb_interface *var_group5 ; [L6773] struct usb_device_id const *var_catc_probe_17_p1 ; [L6774] unsigned long var_catc_stats_timer_10_p0 ; [L6775] int tmp___7 ; [L6776] int ldv_s_catc_netdev_ops_net_device_ops ; [L6777] int ldv_s_catc_driver_usb_driver ; [L6778] int tmp___8 ; [L6779] int tmp___9 ; [L6782] LDV_IN_INTERRUPT = 1 [L6783] FCALL ldv_initialize() [L6784] CALL, EXPR catc_init() VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6714] int result ; [L6715] int tmp___7 ; [L6718] CALL, EXPR usb_register(& catc_driver) [L5088] int tmp___7 ; [L5091] CALL, EXPR usb_register_driver(driver, & __this_module, "catc") [L7209] return __VERIFIER_nondet_int(); [L5091] RET, EXPR usb_register_driver(driver, & __this_module, "catc") [L5091] tmp___7 = usb_register_driver(driver, & __this_module, "catc") [L5093] return (tmp___7); VAL [\result=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver={32:0}, driver={32:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0] [L6718] RET, EXPR usb_register(& catc_driver) [L6718] tmp___7 = usb_register(& catc_driver) [L6719] result = tmp___7 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, result=0, tmp___7=0] [L6721] COND TRUE result == 0 [L6727] return (result); VAL [\result=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, result=0, tmp___7=0] [L6784] RET, EXPR catc_init() VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_init()=0, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6784] tmp___7 = catc_init() [L6786] COND FALSE !(\read(tmp___7)) [L6790] ldv_s_catc_netdev_ops_net_device_ops = 0 [L6791] ldv_s_catc_driver_usb_driver = 0 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0] [L6793] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0] [L6796] tmp___9 = __VERIFIER_nondet_int() [L6798] COND TRUE \read(tmp___9) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___9=-2] [L6807] tmp___8 = __VERIFIER_nondet_int() [L6809] COND FALSE !(tmp___8 == 0) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6812] COND FALSE !(tmp___8 == 1) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6815] COND FALSE !(tmp___8 == 2) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6818] COND FALSE !(tmp___8 == 3) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6821] COND FALSE !(tmp___8 == 4) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6824] COND FALSE !(tmp___8 == 5) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6827] COND FALSE !(tmp___8 == 6) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6830] COND TRUE tmp___8 == 7 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2] [L6895] COND TRUE ldv_s_catc_driver_usb_driver == 0 [L6897] CALL, EXPR catc_probe(var_group5, var_catc_probe_17_p1) [L6274] struct usb_device *usbdev ; [L6275] struct usb_device *tmp___7 ; [L6276] struct net_device *netdev ; [L6277] struct catc *catc ; [L6278] u8 broadcast[6] ; [L6279] int i ; [L6280] int pktsz ; [L6281] int tmp___8 ; [L6282] void *tmp___9 ; [L6283] unsigned int tmp___10 ; [L6284] unsigned int tmp___11 ; [L6285] unsigned int tmp___12 ; [L6286] unsigned int tmp___13 ; [L6287] char const *tmp___14 ; [L6288] int tmp___15 ; [L6291] CALL, EXPR interface_to_usbdev(intf) [L5065] struct device const *__mptr ; [L5067] EXPR intf->dev.parent [L5067] __mptr = (struct device const *)intf->dev.parent [L5068] return ((struct usb_device *)((char *)__mptr - (unsigned int )(& ((struct usb_device *)0)->dev))); VAL [\result={18446744073709551591:0}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __mptr={18446744073709551591:131}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6291] RET, EXPR interface_to_usbdev(intf) [L6291] tmp___7 = interface_to_usbdev(intf) [L6292] usbdev = tmp___7 [L6293] EXPR intf->altsetting [L6293] EXPR (intf->altsetting)->desc.bInterfaceNumber [L6293-L6294] CALL, EXPR usb_set_interface(usbdev, (int )(intf->altsetting)->desc.bInterfaceNumber, 1) [L7213] return __VERIFIER_nondet_int(); [L6293-L6294] RET, EXPR usb_set_interface(usbdev, (int )(intf->altsetting)->desc.bInterfaceNumber, 1) [L6293-L6294] tmp___8 = usb_set_interface(usbdev, (int )(intf->altsetting)->desc.bInterfaceNumber, 1) [L6296] COND FALSE !(\read(tmp___8)) [L6304] CALL, EXPR alloc_etherdev_mqs((int )sizeof(struct catc ), 1U, 1U) [L7117] CALL, EXPR ldv_malloc(sizeof(struct net_device)) VAL [\old(size)=2416, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7117] RET, EXPR ldv_malloc(sizeof(struct net_device)) VAL [\old(arg0)=70119, \old(arg1)=1, \old(arg2)=1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arg0=70119, arg1=1, arg2=1, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct net_device))={33:0}, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7117] return ldv_malloc(sizeof(struct net_device)); [L6304] RET, EXPR alloc_etherdev_mqs((int )sizeof(struct catc ), 1U, 1U) [L6304] netdev = alloc_etherdev_mqs((int )sizeof(struct catc ), 1U, 1U) [L6306] COND FALSE !(! netdev) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, usbdev={18446744073709551591:0}] [L6311] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={33:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L4928] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [\result={33:-108}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={33:0}, dev={33:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6311] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, netdev_priv((struct net_device const *)netdev)={33:-108}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, usbdev={18446744073709551591:0}] [L6311] tmp___9 = netdev_priv((struct net_device const *)netdev) [L6312] catc = (struct catc *)tmp___9 [L6313] netdev->netdev_ops = & catc_netdev_ops [L6314] netdev->watchdog_timeo = 1250 [L6315] netdev->ethtool_ops = & ops [L6316] catc->usbdev = usbdev [L6317] catc->netdev = netdev VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6320] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6323] CALL spinlock_check(& catc->tx_lock) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, lock={33:-68}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L4851] return (& lock->__annonCompField18.rlock); VAL [\result={33:-68}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, lock={33:-68}, lock={33:-68}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6323] RET spinlock_check(& catc->tx_lock) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, spinlock_check(& catc->tx_lock)={33:-68}, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6326] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6329-L6330] FCALL __raw_spin_lock_init(& catc->tx_lock.__annonCompField18.rlock, "&(&catc->tx_lock)->rlock", & __key___9) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6343] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6346] CALL spinlock_check(& catc->ctrl_lock) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, lock={33:-4}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L4851] return (& lock->__annonCompField18.rlock); VAL [\result={33:-4}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, lock={33:-4}, lock={33:-4}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6346] RET spinlock_check(& catc->ctrl_lock) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, spinlock_check(& catc->ctrl_lock)={33:-4}, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6349] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6352-L6353] FCALL __raw_spin_lock_init(& catc->ctrl_lock.__annonCompField18.rlock, "&(&catc->ctrl_lock)->rlock", & __key___10) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6366] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6369] FCALL init_timer_key(& catc->timer, "&catc->timer", & __key___11) [L6377] catc->timer.data = (unsigned long )((long )catc) [L6378] catc->timer.function = & catc_stats_timer VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6379] CALL, EXPR usb_alloc_urb(0, 208U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, \old(size)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-6:0}, ldv_urb_state=0, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] return ldv_malloc(0UL); [L7029] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-6:0}, ldv_urb_state=0, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-6:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-6:0}] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=208, \result={-6:0}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-6:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-6:0}] [L6379] RET, EXPR usb_alloc_urb(0, 208U) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usb_alloc_urb(0, 208U)={-6:0}, usbdev={18446744073709551591:0}] [L6379] catc->ctrl_urb = usb_alloc_urb(0, 208U) [L6380] CALL, EXPR usb_alloc_urb(0, 208U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=1, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=1, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=1, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=1, \old(size)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-7:0}, ldv_urb_state=1, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] return ldv_malloc(0UL); [L7029] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=1, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-7:0}, ldv_urb_state=1, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=1, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-7:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-7:0}] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=1, \old(mem_flags)=208, \result={-7:0}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-7:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-7:0}] [L6380] RET, EXPR usb_alloc_urb(0, 208U) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usb_alloc_urb(0, 208U)={-7:0}, usbdev={18446744073709551591:0}] [L6380] catc->tx_urb = usb_alloc_urb(0, 208U) [L6381] CALL, EXPR usb_alloc_urb(0, 208U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=2, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=2, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=2, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=2, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=2, \old(size)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=2, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-8:0}, ldv_urb_state=2, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] return ldv_malloc(0UL); [L7029] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=2, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-8:0}, ldv_urb_state=2, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=2, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-8:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=2, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-8:0}] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=2, \old(mem_flags)=208, \result={-8:0}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-8:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-8:0}] [L6381] RET, EXPR usb_alloc_urb(0, 208U) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usb_alloc_urb(0, 208U)={-8:0}, usbdev={18446744073709551591:0}] [L6381] catc->rx_urb = usb_alloc_urb(0, 208U) [L6382] CALL, EXPR usb_alloc_urb(0, 208U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=3, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7022] void *arbitrary_memory ; [L7023] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=3, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7026] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=3, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=3, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=3, \old(size)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7113] COND FALSE !(__VERIFIER_nondet_bool()) [L7114] return malloc(size); [L7161] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=3, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-9:0}, ldv_urb_state=3, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7161] return ldv_malloc(0UL); [L7029] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=3, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-9:0}, ldv_urb_state=3, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7029] tmp___7 = ldv_undefined_pointer() [L7030] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=3, \old(mem_flags)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-9:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=3, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-9:0}] [L7032] COND FALSE !(! arbitrary_memory) [L7036] ldv_urb_state = ldv_urb_state + 1 [L7037] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=3, \old(mem_flags)=208, \result={-9:0}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arbitrary_memory={-9:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, mem_flags=208, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={-9:0}] [L6382] RET, EXPR usb_alloc_urb(0, 208U) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usb_alloc_urb(0, 208U)={-9:0}, usbdev={18446744073709551591:0}] [L6382] catc->irq_urb = usb_alloc_urb(0, 208U) [L6384] EXPR catc->ctrl_urb VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->ctrl_urb={-6:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6384] COND FALSE !(! catc->ctrl_urb) [L6387] EXPR catc->tx_urb VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->tx_urb={-7:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6387] COND FALSE !(! catc->tx_urb) [L6390] EXPR catc->rx_urb VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->rx_urb={-8:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6390] COND FALSE !(! catc->rx_urb) [L6393] EXPR catc->irq_urb VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->irq_urb={-9:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6393] COND FALSE !(! catc->irq_urb) [L6406] EXPR usbdev->descriptor.idVendor VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}, usbdev->descriptor.idVendor=70] [L6406] COND FALSE !((int )usbdev->descriptor.idVendor == 1059) [L6429] pktsz = 23070 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6432] CALL, EXPR __create_pipe(usbdev, 0U) VAL [\old(endpoint)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6432] RET, EXPR __create_pipe(usbdev, 0U) VAL [__create_pipe(usbdev, 0U)=18446744073709551558, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6432] tmp___10 = __create_pipe(usbdev, 0U) [L6433] EXPR catc->ctrl_urb [L6433-L6435] CALL usb_fill_control_urb(catc->ctrl_urb, usbdev, (unsigned int )(2 << 30) | tmp___10, (unsigned char *)((void *)0), (void *)0, 0, & catc_ctrl_done, (void *)catc) [L5103] urb->dev = dev [L5104] urb->pipe = pipe [L5105] urb->setup_packet = setup_packet [L5106] urb->transfer_buffer = transfer_buffer [L5107] urb->transfer_buffer_length = (u32 )buffer_length [L5108] urb->complete = complete_fn [L5109] urb->context = context VAL [\old(buffer_length)=0, \old(pipe)=4294967242, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buffer_length=0, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:13}, complete_fn={-1:13}, context={33:-108}, context={33:-108}, dev={18446744073709551591:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, pipe=4294967242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, setup_packet={0:0}, setup_packet={0:0}, transfer_buffer={0:0}, transfer_buffer={0:0}, urb={-6:0}, urb={-6:0}] [L6433-L6435] RET usb_fill_control_urb(catc->ctrl_urb, usbdev, (unsigned int )(2 << 30) | tmp___10, (unsigned char *)((void *)0), (void *)0, 0, & catc_ctrl_done, (void *)catc) [L6436] CALL, EXPR __create_pipe(usbdev, 1U) VAL [\old(endpoint)=1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6436] RET, EXPR __create_pipe(usbdev, 1U) VAL [__create_pipe(usbdev, 1U)=18446744073709551560, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6436] tmp___11 = __create_pipe(usbdev, 1U) [L6437] EXPR catc->tx_urb VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->tx_urb={-7:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6437-L6438] CALL usb_fill_bulk_urb(catc->tx_urb, usbdev, (unsigned int )(3 << 30) | tmp___11, (void *)0, 0, & catc_tx_done, (void *)catc) VAL [\old(buffer_length)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:14}, context={33:-108}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, transfer_buffer={0:0}, urb={-7:0}] [L5119] urb->dev = dev [L5120] urb->pipe = pipe [L5121] urb->transfer_buffer = transfer_buffer [L5122] urb->transfer_buffer_length = (u32 )buffer_length [L5123] urb->complete = complete_fn [L5124] urb->context = context VAL [\old(buffer_length)=0, \old(pipe)=4294967257, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buffer_length=0, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:14}, complete_fn={-1:14}, context={33:-108}, context={33:-108}, dev={18446744073709551591:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, pipe=4294967257, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, transfer_buffer={0:0}, transfer_buffer={0:0}, urb={-7:0}, urb={-7:0}] [L6437-L6438] RET usb_fill_bulk_urb(catc->tx_urb, usbdev, (unsigned int )(3 << 30) | tmp___11, (void *)0, 0, & catc_tx_done, (void *)catc) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->tx_urb={-7:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6439] CALL, EXPR __create_pipe(usbdev, 1U) VAL [\old(endpoint)=1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6439] RET, EXPR __create_pipe(usbdev, 1U) VAL [__create_pipe(usbdev, 1U)=18446744073709551580, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6439] tmp___12 = __create_pipe(usbdev, 1U) [L6440] EXPR catc->rx_urb VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->rx_urb={-8:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6440-L6441] CALL usb_fill_bulk_urb(catc->rx_urb, usbdev, ((unsigned int )(3 << 30) | tmp___12) | 128U, (void *)(catc->rx_buf), pktsz, & catc_rx_done, (void *)catc) VAL [\old(buffer_length)=23070, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:15}, context={33:-108}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, transfer_buffer={33:46200}, urb={-8:0}] [L5119] urb->dev = dev [L5120] urb->pipe = pipe [L5121] urb->transfer_buffer = transfer_buffer [L5122] urb->transfer_buffer_length = (u32 )buffer_length [L5123] urb->complete = complete_fn [L5124] urb->context = context VAL [\old(buffer_length)=23070, \old(pipe)=4294967285, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buffer_length=23070, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:15}, complete_fn={-1:15}, context={33:-108}, context={33:-108}, dev={18446744073709551591:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, pipe=4294967285, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, transfer_buffer={33:46200}, transfer_buffer={33:46200}, urb={-8:0}, urb={-8:0}] [L6440-L6441] RET usb_fill_bulk_urb(catc->rx_urb, usbdev, ((unsigned int )(3 << 30) | tmp___12) | 128U, (void *)(catc->rx_buf), pktsz, & catc_rx_done, (void *)catc) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->rx_urb={-8:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6442] CALL, EXPR __create_pipe(usbdev, 2U) VAL [\old(endpoint)=2, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L6442] RET, EXPR __create_pipe(usbdev, 2U) VAL [__create_pipe(usbdev, 2U)=18446744073709551578, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6442] tmp___13 = __create_pipe(usbdev, 2U) [L6443] EXPR catc->irq_urb [L6443-L6444] CALL usb_fill_int_urb(catc->irq_urb, usbdev, ((unsigned int )(1 << 30) | tmp___13) | 128U, (void *)(catc->irq_buf), 2, & catc_irq_done, (void *)catc, 1) [L5134] urb->dev = dev [L5135] urb->pipe = pipe [L5136] urb->transfer_buffer = transfer_buffer [L5137] urb->transfer_buffer_length = (u32 )buffer_length [L5138] urb->complete = complete_fn [L5139] urb->context = context [L5140] EXPR dev->speed VAL [\old(buffer_length)=2, \old(interval)=1, \old(pipe)=4294967248, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buffer_length=2, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:16}, complete_fn={-1:16}, context={33:-108}, context={33:-108}, dev={18446744073709551591:0}, dev={18446744073709551591:0}, dev->speed=4294967299, driver_name={25:0}, interval=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, pipe=4294967248, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, transfer_buffer={33:69270}, transfer_buffer={33:69270}, urb={-9:0}, urb={-9:0}] [L5140] COND TRUE (unsigned int )dev->speed == 3U [L5141] urb->interval = 1 << (interval - 1) VAL [\old(buffer_length)=2, \old(interval)=1, \old(pipe)=4294967248, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buffer_length=2, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:16}, complete_fn={-1:16}, context={33:-108}, context={33:-108}, dev={18446744073709551591:0}, dev={18446744073709551591:0}, driver_name={25:0}, interval=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, pipe=4294967248, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, transfer_buffer={33:69270}, transfer_buffer={33:69270}, urb={-9:0}, urb={-9:0}] [L5148] urb->start_frame = -1 VAL [\old(buffer_length)=2, \old(interval)=1, \old(pipe)=4294967248, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buffer_length=2, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, complete_fn={-1:16}, complete_fn={-1:16}, context={33:-108}, context={33:-108}, dev={18446744073709551591:0}, dev={18446744073709551591:0}, driver_name={25:0}, interval=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, pipe=4294967248, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, transfer_buffer={33:69270}, transfer_buffer={33:69270}, urb={-9:0}, urb={-9:0}] [L6443-L6444] RET usb_fill_int_urb(catc->irq_urb, usbdev, ((unsigned int )(1 << 30) | tmp___13) | 128U, (void *)(catc->irq_buf), 2, & catc_irq_done, (void *)catc, 1) [L6446] EXPR catc->is_f5u011 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->is_f5u011=1, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6446] COND FALSE !(! catc->is_f5u011) [L6599] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6607] CALL catc_ctrl_msg(catc, (u8 )0, (u8 )244, (u16 )0, (u16 )0, (void *)0, 0) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5677] int retval ; [L5678] unsigned int tmp___7 ; [L5679] unsigned int tmp___8 ; [L5680] unsigned int tmp___9 ; [L5681] int tmp___10 ; [L5682] int tmp___11 ; VAL [\old(dir)=0, \old(index)=0, \old(len)=0, \old(request)=244, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={0:0}, buf={0:0}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=0, ops={26:0}, request=244, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5684] COND FALSE !(\read(dir)) [L5691] EXPR catc->usbdev VAL [\old(dir)=0, \old(index)=0, \old(len)=0, \old(request)=244, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={0:0}, buf={0:0}, catc={33:-108}, catc={33:-108}, catc->usbdev={18446744073709551591:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=0, ops={26:0}, request=244, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5691] CALL, EXPR __create_pipe(catc->usbdev, 0U) VAL [\old(endpoint)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L5691] RET, EXPR __create_pipe(catc->usbdev, 0U) VAL [\old(dir)=0, \old(index)=0, \old(len)=0, \old(request)=244, \old(value)=0, __create_pipe(catc->usbdev, 0U)=18446744073709551628, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={0:0}, buf={0:0}, catc={33:-108}, catc={33:-108}, catc->usbdev={18446744073709551591:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=0, ops={26:0}, request=244, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5691] tmp___8 = __create_pipe(catc->usbdev, 0U) [L5692] tmp___9 = (unsigned int )(2 << 30) | tmp___8 VAL [\old(dir)=0, \old(index)=0, \old(len)=0, \old(request)=244, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={0:0}, buf={0:0}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=0, ops={26:0}, request=244, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___8=12, value=0] [L5696] EXPR catc->usbdev [L5696-L5697] CALL, EXPR usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L7199] return __VERIFIER_nondet_int(); [L5696-L5697] RET, EXPR usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5696-L5697] tmp___10 = usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5698] retval = tmp___10 VAL [\old(dir)=0, \old(index)=0, \old(len)=0, \old(request)=244, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={0:0}, buf={0:0}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=0, ops={26:0}, request=244, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___8=12, tmp___9=4294967294, value=0] [L5700] COND TRUE retval < 0 [L5701] tmp___11 = retval VAL [\old(dir)=0, \old(index)=0, \old(len)=0, \old(request)=244, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={0:0}, buf={0:0}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=0, ops={26:0}, request=244, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___11=-1, tmp___8=12, tmp___9=4294967294, value=0] [L5705] return (tmp___11); VAL [\old(dir)=0, \old(index)=0, \old(len)=0, \old(request)=244, \old(value)=0, \result=-1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={0:0}, buf={0:0}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=0, ops={26:0}, request=244, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___11=-1, tmp___8=12, tmp___9=4294967294, value=0] [L6607] RET catc_ctrl_msg(catc, (u8 )0, (u8 )244, (u16 )0, (u16 )0, (void *)0, 0) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_ctrl_msg(catc, (u8 )0, (u8 )244, (u16 )0, (u16 )0, (void *)0, 0)=-1, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6608] EXPR netdev->dev_addr VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, netdev->dev_addr={18446744073709551579:18446744073709551612}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6608-L6609] CALL catc_ctrl_msg(catc, (u8 )128, (u8 )242, (u16 )0, (u16 )0, (void *)netdev->dev_addr, 6) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5677] int retval ; [L5678] unsigned int tmp___7 ; [L5679] unsigned int tmp___8 ; [L5680] unsigned int tmp___9 ; [L5681] int tmp___10 ; [L5682] int tmp___11 ; VAL [\old(dir)=128, \old(index)=0, \old(len)=6, \old(request)=242, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={18446744073709551579:18446744073709551612}, buf={18446744073709551579:18446744073709551612}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=128, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=6, ops={26:0}, request=242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5684] COND TRUE \read(dir) [L5686] EXPR catc->usbdev VAL [\old(dir)=128, \old(index)=0, \old(len)=6, \old(request)=242, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={18446744073709551579:18446744073709551612}, buf={18446744073709551579:18446744073709551612}, catc={33:-108}, catc={33:-108}, catc->usbdev={18446744073709551591:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=128, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=6, ops={26:0}, request=242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5686] CALL, EXPR __create_pipe(catc->usbdev, 0U) VAL [\old(endpoint)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L5686] RET, EXPR __create_pipe(catc->usbdev, 0U) VAL [\old(dir)=128, \old(index)=0, \old(len)=6, \old(request)=242, \old(value)=0, __create_pipe(catc->usbdev, 0U)=18446744073709551613, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={18446744073709551579:18446744073709551612}, buf={18446744073709551579:18446744073709551612}, catc={33:-108}, catc={33:-108}, catc->usbdev={18446744073709551591:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=128, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=6, ops={26:0}, request=242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5686] tmp___7 = __create_pipe(catc->usbdev, 0U) [L5687] tmp___9 = ((unsigned int )(2 << 30) | tmp___7) | 128U VAL [\old(dir)=128, \old(index)=0, \old(len)=6, \old(request)=242, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={18446744073709551579:18446744073709551612}, buf={18446744073709551579:18446744073709551612}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=128, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=6, ops={26:0}, request=242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=4294967293, value=0] [L5696] EXPR catc->usbdev [L5696-L5697] CALL, EXPR usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L7199] return __VERIFIER_nondet_int(); [L5696-L5697] RET, EXPR usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5696-L5697] tmp___10 = usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5698] retval = tmp___10 VAL [\old(dir)=128, \old(index)=0, \old(len)=6, \old(request)=242, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={18446744073709551579:18446744073709551612}, buf={18446744073709551579:18446744073709551612}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=128, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=6, ops={26:0}, request=242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___7=4294967293, tmp___9=8, value=0] [L5700] COND TRUE retval < 0 [L5701] tmp___11 = retval VAL [\old(dir)=128, \old(index)=0, \old(len)=6, \old(request)=242, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={18446744073709551579:18446744073709551612}, buf={18446744073709551579:18446744073709551612}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=128, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=6, ops={26:0}, request=242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___11=-1, tmp___7=4294967293, tmp___9=8, value=0] [L5705] return (tmp___11); VAL [\old(dir)=128, \old(index)=0, \old(len)=6, \old(request)=242, \old(value)=0, \result=-1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={18446744073709551579:18446744073709551612}, buf={18446744073709551579:18446744073709551612}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=128, driver_name={25:0}, index=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=6, ops={26:0}, request=242, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___11=-1, tmp___7=4294967293, tmp___9=8, value=0] [L6608-L6609] RET catc_ctrl_msg(catc, (u8 )128, (u8 )242, (u16 )0, (u16 )0, (void *)netdev->dev_addr, 6) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_ctrl_msg(catc, (u8 )128, (u8 )242, (u16 )0, (u16 )0, (void *)netdev->dev_addr, 6)=-1, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, netdev->dev_addr={18446744073709551579:18446744073709551612}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6612] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6620] catc->rxmode[0] = (u8 )11 [L6621] catc->rxmode[1] = (u8 )0 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6622-L6623] CALL catc_ctrl_msg(catc, (u8 )0, (u8 )245, (u16 )0, (u16 )1, (void *)(catc->rxmode), 2) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5677] int retval ; [L5678] unsigned int tmp___7 ; [L5679] unsigned int tmp___8 ; [L5680] unsigned int tmp___9 ; [L5681] int tmp___10 ; [L5682] int tmp___11 ; VAL [\old(dir)=0, \old(index)=1, \old(len)=2, \old(request)=245, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={33:70005}, buf={33:70005}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=2, ops={26:0}, request=245, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5684] COND FALSE !(\read(dir)) [L5691] EXPR catc->usbdev VAL [\old(dir)=0, \old(index)=1, \old(len)=2, \old(request)=245, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={33:70005}, buf={33:70005}, catc={33:-108}, catc={33:-108}, catc->usbdev={18446744073709551591:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=2, ops={26:0}, request=245, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5691] CALL, EXPR __create_pipe(catc->usbdev, 0U) VAL [\old(endpoint)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551591:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5167] EXPR dev->devnum [L5167] return ((unsigned int )(dev->devnum << 8) | (endpoint << 15)); [L5691] RET, EXPR __create_pipe(catc->usbdev, 0U) VAL [\old(dir)=0, \old(index)=1, \old(len)=2, \old(request)=245, \old(value)=0, __create_pipe(catc->usbdev, 0U)=18446744073709551626, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={33:70005}, buf={33:70005}, catc={33:-108}, catc={33:-108}, catc->usbdev={18446744073709551591:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=2, ops={26:0}, request=245, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, value=0] [L5691] tmp___8 = __create_pipe(catc->usbdev, 0U) [L5692] tmp___9 = (unsigned int )(2 << 30) | tmp___8 VAL [\old(dir)=0, \old(index)=1, \old(len)=2, \old(request)=245, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={33:70005}, buf={33:70005}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=2, ops={26:0}, request=245, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___8=10, value=0] [L5696] EXPR catc->usbdev [L5696-L5697] CALL, EXPR usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L7199] return __VERIFIER_nondet_int(); [L5696-L5697] RET, EXPR usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5696-L5697] tmp___10 = usb_control_msg(catc->usbdev, tmp___9, request, (__u8 )(64 | (int )dir), value, index, buf, (__u16 )len, 1000) [L5698] retval = tmp___10 VAL [\old(dir)=0, \old(index)=1, \old(len)=2, \old(request)=245, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={33:70005}, buf={33:70005}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=2, ops={26:0}, request=245, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___8=10, tmp___9=4294967229, value=0] [L5700] COND TRUE retval < 0 [L5701] tmp___11 = retval VAL [\old(dir)=0, \old(index)=1, \old(len)=2, \old(request)=245, \old(value)=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={33:70005}, buf={33:70005}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=2, ops={26:0}, request=245, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___11=-1, tmp___8=10, tmp___9=4294967229, value=0] [L5705] return (tmp___11); VAL [\old(dir)=0, \old(index)=1, \old(len)=2, \old(request)=245, \old(value)=0, \result=-1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, buf={33:70005}, buf={33:70005}, catc={33:-108}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dir=0, driver_name={25:0}, index=1, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, len=2, ops={26:0}, request=245, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, retval=-1, tmp___10=-1, tmp___11=-1, tmp___8=10, tmp___9=4294967229, value=0] [L6622-L6623] RET catc_ctrl_msg(catc, (u8 )0, (u8 )245, (u16 )0, (u16 )1, (void *)(catc->rxmode), 2) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_ctrl_msg(catc, (u8 )0, (u8 )245, (u16 )0, (u16 )1, (void *)(catc->rxmode), 2)=-1, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6627] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6634] catc->is_f5u011 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc->is_f5u011=1, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6634] COND TRUE catc->is_f5u011 [L6635] tmp___14 = "Belkin F5U011" VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___14={21:0}, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6640] EXPR usbdev->bus [L6640] (usbdev->bus)->bus_name [L6641] netdev->dev_addr [L6642] CALL usb_set_intfdata(intf, (void *)catc) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L5059] CALL dev_set_drvdata(& intf->dev, data) [L7138] return __VERIFIER_nondet_int(); [L5059] RET dev_set_drvdata(& intf->dev, data) [L6642] RET usb_set_intfdata(intf, (void *)catc) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, broadcast={53:0}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, i={55:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___14={21:0}, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6643] netdev->dev.parent = & intf->dev [L6644] CALL, EXPR register_netdev(netdev) [L7187] return __VERIFIER_nondet_int(); [L6644] RET, EXPR register_netdev(netdev) [L6644] tmp___15 = register_netdev(netdev) [L6646] COND FALSE !(tmp___15 != 0) [L6658] return (0); [L6658] return (0); [L6658] return (0); VAL [\result=0, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc={33:-108}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, id={18446744073709551627:18446744073709551555}, id={18446744073709551627:18446744073709551555}, intf={18446744073709551608:0}, intf={18446744073709551608:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={33:0}, ops={26:0}, pktsz=23070, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___10=4294967238, tmp___11=4294967240, tmp___12=4294967260, tmp___13=4294967258, tmp___14={21:0}, tmp___15=0, tmp___7={18446744073709551591:0}, tmp___8=0, tmp___9={33:-108}, usbdev={18446744073709551591:0}] [L6897] RET, EXPR catc_probe(var_group5, var_catc_probe_17_p1) [L6897] res_catc_probe_17 = catc_probe(var_group5, var_catc_probe_17_p1) [L6898] FCALL ldv_check_return_value(res_catc_probe_17) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=0, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group5={18446744073709551608:0}] [L6900] COND FALSE !(\read(res_catc_probe_17)) [L6904] ldv_s_catc_driver_usb_driver = ldv_s_catc_driver_usb_driver + 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group5={18446744073709551608:0}] [L6793] COND TRUE 1 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-2, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group5={18446744073709551608:0}] [L6796] tmp___9 = __VERIFIER_nondet_int() [L6798] COND TRUE \read(tmp___9) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=7, tmp___9=-10, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group5={18446744073709551608:0}] [L6807] tmp___8 = __VERIFIER_nondet_int() [L6809] COND FALSE !(tmp___8 == 0) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=2, tmp___9=-10, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group5={18446744073709551608:0}] [L6812] COND FALSE !(tmp___8 == 1) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=2, tmp___9=-10, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group5={18446744073709551608:0}] [L6815] COND TRUE tmp___8 == 2 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=2, tmp___9=-10, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group5={18446744073709551608:0}] [L6852] COND TRUE ldv_s_catc_netdev_ops_net_device_ops == 0 [L6854] CALL, EXPR catc_open(var_group1) [L6178] struct catc *catc ; [L6179] void *tmp___7 ; [L6180] int status ; VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={18446744073709551546:73}, netdev={18446744073709551546:73}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6183] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551546:73}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L4928] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [\result={18446744073709551546:0}, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, dev={18446744073709551546:73}, dev={18446744073709551546:73}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6183] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={18446744073709551546:73}, netdev={18446744073709551546:73}, netdev_priv((struct net_device const *)netdev)={18446744073709551546:0}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L6183] tmp___7 = netdev_priv((struct net_device const *)netdev) [L6184] catc = (struct catc *)tmp___7 [L6185] EXPR catc->irq_urb [L6185] EXPR catc->usbdev [L6185] (catc->irq_urb)->dev = catc->usbdev [L6186] EXPR catc->irq_urb VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc={18446744073709551546:0}, catc->irq_urb={18446744073709551611:18446744073709551566}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={18446744073709551546:73}, netdev={18446744073709551546:73}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551546:0}] [L6186] CALL, EXPR usb_submit_urb(catc->irq_urb, 208U) VAL [\old(arg1)=208, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, arg0={18446744073709551611:18446744073709551566}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0] [L7217] return __VERIFIER_nondet_int(); [L6186] RET, EXPR usb_submit_urb(catc->irq_urb, 208U) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc={18446744073709551546:0}, catc->irq_urb={18446744073709551611:18446744073709551566}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={18446744073709551546:73}, netdev={18446744073709551546:73}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7={18446744073709551546:0}, usb_submit_urb(catc->irq_urb, 208U)=-11] [L6186] status = usb_submit_urb(catc->irq_urb, 208U) [L6188] COND TRUE status < 0 [L6192] return (-1); VAL [\result=-1, __key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc={18446744073709551546:0}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, netdev={18446744073709551546:73}, netdev={18446744073709551546:73}, ops={26:0}, res_catc_open_15=0, res_catc_probe_17=0, res_catc_stop_16=0, status=-11, tmp___7={18446744073709551546:0}] [L6854] RET, EXPR catc_open(var_group1) [L6854] res_catc_open_15 = catc_open(var_group1) [L6855] FCALL ldv_check_return_value(res_catc_open_15) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=2, tmp___9=-10, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group1={18446744073709551546:73}, var_group5={18446744073709551608:0}] [L6857] COND TRUE res_catc_open_15 < 0 VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=2, tmp___9=-10, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group1={18446744073709551546:73}, var_group5={18446744073709551608:0}] [L6934] CALL catc_exit() VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0] [L6736] FCALL usb_deregister(& catc_driver) [L6934] RET catc_exit() VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_catc_driver_usb_driver=1, ldv_s_catc_netdev_ops_net_device_ops=0, ldv_urb_state=4, ops={26:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0, tmp___7=0, tmp___8=2, tmp___9=-10, var_catc_probe_17_p1={18446744073709551627:18446744073709551555}, var_group1={18446744073709551546:73}, var_group5={18446744073709551608:0}] [L6938] CALL ldv_check_final_state() [L7081] COND FALSE !(ldv_urb_state == 0) VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0] [L7084] CALL ldv_blast_assert() VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0] [L6946] reach_error() VAL [__key___10={29:0}, __key___11={30:0}, __key___9={28:0}, __this_module={18446744073709551607:18446744073709551583}, catc_driver={32:0}, catc_id_table={31:0}, catc_netdev_ops={27:0}, driver_name={25:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=4, ops={26:0}, res_catc_open_15=-1, res_catc_probe_17=0, res_catc_stop_16=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 540 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.6s, OverallIterations: 20, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 33.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13760 SdHoareTripleChecker+Valid, 30.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12830 mSDsluCounter, 63893 SdHoareTripleChecker+Invalid, 27.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1195 IncrementalHoareTripleChecker+Unchecked, 49699 mSDsCounter, 6457 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19943 IncrementalHoareTripleChecker+Invalid, 27595 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6457 mSolverCounterUnsat, 14194 mSDtfsCounter, 19943 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4126 GetRequests, 3835 SyntacticMatches, 36 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3386occurred in iteration=11, InterpolantAutomatonStates: 204, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 285 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 5166 NumberOfCodeBlocks, 5166 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 5977 ConstructedInterpolants, 146 QuantifiedInterpolants, 16070 SizeOfPredicates, 37 NumberOfNonLiveVariables, 25487 ConjunctsInSsa, 297 ConjunctsInUnsatCore, 38 InterpolantComputations, 14 PerfectInterpolantSequences, 4340/4581 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 [2021-12-07 00:00:03,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:00:04,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:00:04,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:00:04,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:00:04,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:00:04,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:00:04,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:00:04,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:00:04,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:00:04,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:00:04,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:00:04,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:00:04,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:00:04,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:00:04,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:00:04,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:00:04,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:00:04,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:00:04,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:00:05,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:00:05,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:00:05,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:00:05,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:00:05,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:00:05,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:00:05,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:00:05,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:00:05,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:00:05,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:00:05,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:00:05,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:00:05,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:00:05,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:00:05,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:00:05,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:00:05,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:00:05,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:00:05,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:00:05,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:00:05,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:00:05,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:00:05,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-07 00:00:05,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:00:05,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:00:05,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:00:05,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:00:05,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:00:05,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:00:05,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:00:05,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:00:05,052 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:00:05,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:00:05,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:00:05,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:00:05,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:00:05,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:00:05,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 00:00:05,054 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 00:00:05,054 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 00:00:05,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:00:05,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:00:05,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:00:05,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:00:05,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:00:05,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:00:05,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:00:05,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:00:05,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:00:05,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:00:05,056 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 00:00:05,056 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 00:00:05,056 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:00:05,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:00:05,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:00:05,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:00:05,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 00:00:05,057 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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c [2021-12-07 00:00:05,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:00:05,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:00:05,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:00:05,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:00:05,311 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:00:05,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-12-07 00:00:05,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/16f2f3706/faa47650444c43d28312658d4c97da5d/FLAG0dd7ad11f [2021-12-07 00:00:05,987 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:00:05,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-12-07 00:00:06,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/16f2f3706/faa47650444c43d28312658d4c97da5d/FLAG0dd7ad11f [2021-12-07 00:00:06,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/data/16f2f3706/faa47650444c43d28312658d4c97da5d [2021-12-07 00:00:06,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:00:06,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:00:06,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:00:06,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:00:06,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:00:06,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:00:06" (1/1) ... [2021-12-07 00:00:06,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d01009c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:06, skipping insertion in model container [2021-12-07 00:00:06,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:00:06" (1/1) ... [2021-12-07 00:00:06,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:00:06,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:00:07,341 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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-12-07 00:00:07,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:00:07,420 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-07 00:00:07,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:00:07,615 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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-12-07 00:00:07,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:00:07,635 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:00:07,772 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_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2021-12-07 00:00:07,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:00:07,969 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:00:07,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07 WrapperNode [2021-12-07 00:00:07,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:00:07,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:00:07,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:00:07,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:00:07,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,063 INFO L137 Inliner]: procedures = 157, calls = 839, calls flagged for inlining = 59, calls inlined = 40, statements flattened = 1605 [2021-12-07 00:00:08,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:00:08,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:00:08,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:00:08,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:00:08,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:00:08,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:00:08,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:00:08,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:00:08,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (1/1) ... [2021-12-07 00:00:08,183 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:00:08,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:00:08,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:00:08,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:00:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-07 00:00:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure catc_tx_run [2021-12-07 00:00:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_tx_run [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-07 00:00:08,236 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-07 00:00:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 00:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-07 00:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-07 00:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-07 00:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-07 00:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_run [2021-12-07 00:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_run [2021-12-07 00:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure catc_get_drvinfo [2021-12-07 00:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_get_drvinfo [2021-12-07 00:00:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_msg [2021-12-07 00:00:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_msg [2021-12-07 00:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 00:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 00:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-07 00:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-07 00:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 00:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 00:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure catc_multicast [2021-12-07 00:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_multicast [2021-12-07 00:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-07 00:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-07 00:00:08,238 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-07 00:00:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-12-07 00:00:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-07 00:00:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-07 00:00:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-07 00:00:08,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 00:00:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-07 00:00:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-07 00:00:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-07 00:00:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-07 00:00:08,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:00:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_async [2021-12-07 00:00:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_async [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure catc_exit [2021-12-07 00:00:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_exit [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-07 00:00:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-07 00:00:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-07 00:00:08,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-07 00:00:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure catc_init [2021-12-07 00:00:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_init [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-07 00:00:08,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-07 00:00:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-07 00:00:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-07 00:00:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-07 00:00:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-07 00:00:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-07 00:00:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-07 00:00:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-07 00:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-12-07 00:00:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-12-07 00:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-07 00:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-07 00:00:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-07 00:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-07 00:00:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:00:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:00:08,505 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:00:08,506 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:00:19,671 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-12-07 00:00:19,768 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-07 00:00:19,778 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-07 00:00:31,547 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2021-12-07 00:00:31,547 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2021-12-07 00:00:31,547 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-12-07 00:00:31,548 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-12-07 00:00:31,568 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:00:31,580 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:00:31,580 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-12-07 00:00:31,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:00:31 BoogieIcfgContainer [2021-12-07 00:00:31,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:00:31,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:00:31,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:00:31,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:00:31,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:00:06" (1/3) ... [2021-12-07 00:00:31,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6e9f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:00:31, skipping insertion in model container [2021-12-07 00:00:31,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:00:07" (2/3) ... [2021-12-07 00:00:31,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6e9f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:00:31, skipping insertion in model container [2021-12-07 00:00:31,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:00:31" (3/3) ... [2021-12-07 00:00:31,590 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-usb-catc.ko.cil.out.i [2021-12-07 00:00:31,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:00:31,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:00:31,638 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:00:31,643 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 [2021-12-07 00:00:31,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:00:31,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 539 states, 380 states have (on average 1.381578947368421) internal successors, (525), 393 states have internal predecessors, (525), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2021-12-07 00:00:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 00:00:31,672 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:31,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:31,673 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:31,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1343427639, now seen corresponding path program 1 times [2021-12-07 00:00:31,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:31,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393927245] [2021-12-07 00:00:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:31,695 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:31,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:31,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:31,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 00:00:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:32,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 00:00:32,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:32,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:32,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:32,235 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:32,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393927245] [2021-12-07 00:00:32,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393927245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:32,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:32,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:00:32,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723737757] [2021-12-07 00:00:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:32,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:00:32,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:00:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:00:32,261 INFO L87 Difference]: Start difference. First operand has 539 states, 380 states have (on average 1.381578947368421) internal successors, (525), 393 states have internal predecessors, (525), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:00:32,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:32,412 INFO L93 Difference]: Finished difference Result 1076 states and 1560 transitions. [2021-12-07 00:00:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:00:32,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-07 00:00:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:32,426 INFO L225 Difference]: With dead ends: 1076 [2021-12-07 00:00:32,426 INFO L226 Difference]: Without dead ends: 540 [2021-12-07 00:00:32,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:00:32,435 INFO L933 BasicCegarLoop]: 709 mSDtfsCounter, 301 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:32,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 3141 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-12-07 00:00:32,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 535. [2021-12-07 00:00:32,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 378 states have (on average 1.216931216931217) internal successors, (460), 386 states have internal predecessors, (460), 121 states have call successors, (121), 35 states have call predecessors, (121), 35 states have return successors, (119), 118 states have call predecessors, (119), 118 states have call successors, (119) [2021-12-07 00:00:32,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 700 transitions. [2021-12-07 00:00:32,524 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 700 transitions. Word has length 17 [2021-12-07 00:00:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:32,524 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 700 transitions. [2021-12-07 00:00:32,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:00:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 700 transitions. [2021-12-07 00:00:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 00:00:32,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:32,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:32,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:00:32,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:32,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:32,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1736454649, now seen corresponding path program 1 times [2021-12-07 00:00:32,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:32,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181587792] [2021-12-07 00:00:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:32,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:32,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:32,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 00:00:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:33,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:00:33,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:33,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:33,286 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:33,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181587792] [2021-12-07 00:00:33,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181587792] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:33,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:33,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:00:33,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168644864] [2021-12-07 00:00:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:33,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:00:33,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:00:33,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:33,289 INFO L87 Difference]: Start difference. First operand 535 states and 700 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:00:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:33,372 INFO L93 Difference]: Finished difference Result 1565 states and 2072 transitions. [2021-12-07 00:00:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:00:33,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-07 00:00:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:33,389 INFO L225 Difference]: With dead ends: 1565 [2021-12-07 00:00:33,389 INFO L226 Difference]: Without dead ends: 1048 [2021-12-07 00:00:33,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:33,393 INFO L933 BasicCegarLoop]: 973 mSDtfsCounter, 676 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:33,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 1649 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:33,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-12-07 00:00:33,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1045. [2021-12-07 00:00:33,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 738 states have (on average 1.2168021680216803) internal successors, (898), 751 states have internal predecessors, (898), 238 states have call successors, (238), 68 states have call predecessors, (238), 68 states have return successors, (240), 234 states have call predecessors, (240), 235 states have call successors, (240) [2021-12-07 00:00:33,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1376 transitions. [2021-12-07 00:00:33,462 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1376 transitions. Word has length 17 [2021-12-07 00:00:33,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:33,462 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 1376 transitions. [2021-12-07 00:00:33,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:00:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1376 transitions. [2021-12-07 00:00:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-07 00:00:33,463 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:33,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:33,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-07 00:00:33,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:33,665 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:33,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2004221234, now seen corresponding path program 1 times [2021-12-07 00:00:33,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:33,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99606560] [2021-12-07 00:00:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:33,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:33,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:33,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:33,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-07 00:00:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:34,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:00:34,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:34,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:34,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:34,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99606560] [2021-12-07 00:00:34,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99606560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:34,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:34,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:00:34,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368294799] [2021-12-07 00:00:34,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:34,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:00:34,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:34,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:00:34,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:34,213 INFO L87 Difference]: Start difference. First operand 1045 states and 1376 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:00:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:34,254 INFO L93 Difference]: Finished difference Result 1047 states and 1377 transitions. [2021-12-07 00:00:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:00:34,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-07 00:00:34,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:34,260 INFO L225 Difference]: With dead ends: 1047 [2021-12-07 00:00:34,260 INFO L226 Difference]: Without dead ends: 1036 [2021-12-07 00:00:34,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:34,261 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 678 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 693 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 [2021-12-07 00:00:34,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [678 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:34,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-12-07 00:00:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1031. [2021-12-07 00:00:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 728 states have (on average 1.2115384615384615) internal successors, (882), 739 states have internal predecessors, (882), 236 states have call successors, (236), 67 states have call predecessors, (236), 66 states have return successors, (238), 232 states have call predecessors, (238), 234 states have call successors, (238) [2021-12-07 00:00:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1356 transitions. [2021-12-07 00:00:34,309 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1356 transitions. Word has length 18 [2021-12-07 00:00:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:34,309 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1356 transitions. [2021-12-07 00:00:34,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:00:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1356 transitions. [2021-12-07 00:00:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 00:00:34,312 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:34,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:34,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-07 00:00:34,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:34,513 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:34,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1305048404, now seen corresponding path program 1 times [2021-12-07 00:00:34,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:34,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332440438] [2021-12-07 00:00:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:34,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:34,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:34,515 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:34,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-07 00:00:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:34,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:00:34,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:35,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:35,034 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:35,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332440438] [2021-12-07 00:00:35,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332440438] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:35,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:35,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:00:35,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382949167] [2021-12-07 00:00:35,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:35,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:00:35,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:35,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:00:35,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:35,036 INFO L87 Difference]: Start difference. First operand 1031 states and 1356 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 00:00:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:35,128 INFO L93 Difference]: Finished difference Result 2353 states and 3158 transitions. [2021-12-07 00:00:35,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:00:35,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2021-12-07 00:00:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:35,136 INFO L225 Difference]: With dead ends: 2353 [2021-12-07 00:00:35,136 INFO L226 Difference]: Without dead ends: 1334 [2021-12-07 00:00:35,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:00:35,141 INFO L933 BasicCegarLoop]: 786 mSDtfsCounter, 262 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:35,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1302 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2021-12-07 00:00:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1330. [2021-12-07 00:00:35,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 945 states have (on average 1.2338624338624338) internal successors, (1166), 964 states have internal predecessors, (1166), 318 states have call successors, (318), 67 states have call predecessors, (318), 66 states have return successors, (320), 312 states have call predecessors, (320), 316 states have call successors, (320) [2021-12-07 00:00:35,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1804 transitions. [2021-12-07 00:00:35,217 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1804 transitions. Word has length 50 [2021-12-07 00:00:35,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:35,218 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 1804 transitions. [2021-12-07 00:00:35,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 00:00:35,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1804 transitions. [2021-12-07 00:00:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 00:00:35,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:35,225 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-07 00:00:35,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-07 00:00:35,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:35,425 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:35,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash -518166049, now seen corresponding path program 1 times [2021-12-07 00:00:35,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:35,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683715976] [2021-12-07 00:00:35,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:35,427 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:35,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:35,428 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:35,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-07 00:00:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:35,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:00:35,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:36,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:36,011 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:36,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683715976] [2021-12-07 00:00:36,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683715976] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:36,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:36,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:00:36,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372853243] [2021-12-07 00:00:36,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:36,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:00:36,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:36,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:00:36,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:00:36,012 INFO L87 Difference]: Start difference. First operand 1330 states and 1804 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-07 00:00:36,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:36,238 INFO L93 Difference]: Finished difference Result 2669 states and 3616 transitions. [2021-12-07 00:00:36,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:00:36,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 72 [2021-12-07 00:00:36,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:36,246 INFO L225 Difference]: With dead ends: 2669 [2021-12-07 00:00:36,246 INFO L226 Difference]: Without dead ends: 1343 [2021-12-07 00:00:36,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:00:36,251 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 12 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:36,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 2075 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:00:36,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2021-12-07 00:00:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1333. [2021-12-07 00:00:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 947 states have (on average 1.232312565997888) internal successors, (1167), 967 states have internal predecessors, (1167), 318 states have call successors, (318), 68 states have call predecessors, (318), 67 states have return successors, (319), 311 states have call predecessors, (319), 315 states have call successors, (319) [2021-12-07 00:00:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1804 transitions. [2021-12-07 00:00:36,308 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1804 transitions. Word has length 72 [2021-12-07 00:00:36,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:36,308 INFO L470 AbstractCegarLoop]: Abstraction has 1333 states and 1804 transitions. [2021-12-07 00:00:36,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-07 00:00:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1804 transitions. [2021-12-07 00:00:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-07 00:00:36,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:36,311 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-07 00:00:36,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-07 00:00:36,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:36,511 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:36,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash -84772232, now seen corresponding path program 1 times [2021-12-07 00:00:36,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:36,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886450143] [2021-12-07 00:00:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:36,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:36,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:36,513 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:36,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-07 00:00:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:00:36,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:37,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:37,083 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:37,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886450143] [2021-12-07 00:00:37,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886450143] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:37,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:37,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:00:37,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604065203] [2021-12-07 00:00:37,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:37,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:00:37,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:37,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:00:37,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:00:37,085 INFO L87 Difference]: Start difference. First operand 1333 states and 1804 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-07 00:00:37,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:37,292 INFO L93 Difference]: Finished difference Result 2675 states and 3616 transitions. [2021-12-07 00:00:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:00:37,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 80 [2021-12-07 00:00:37,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:37,303 INFO L225 Difference]: With dead ends: 2675 [2021-12-07 00:00:37,303 INFO L226 Difference]: Without dead ends: 1346 [2021-12-07 00:00:37,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:00:37,309 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 12 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:37,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 2062 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:00:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2021-12-07 00:00:37,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1330. [2021-12-07 00:00:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 945 states have (on average 1.2317460317460318) internal successors, (1164), 966 states have internal predecessors, (1164), 317 states have call successors, (317), 68 states have call predecessors, (317), 67 states have return successors, (317), 309 states have call predecessors, (317), 313 states have call successors, (317) [2021-12-07 00:00:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1798 transitions. [2021-12-07 00:00:37,386 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1798 transitions. Word has length 80 [2021-12-07 00:00:37,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:37,387 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 1798 transitions. [2021-12-07 00:00:37,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-07 00:00:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1798 transitions. [2021-12-07 00:00:37,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-07 00:00:37,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:37,391 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:00:37,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-07 00:00:37,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:37,592 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:37,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2140419496, now seen corresponding path program 1 times [2021-12-07 00:00:37,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:37,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980214763] [2021-12-07 00:00:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:37,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:37,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:37,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:37,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-07 00:00:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:38,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 00:00:38,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-07 00:00:38,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:38,603 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:38,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980214763] [2021-12-07 00:00:38,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980214763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:38,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:38,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:00:38,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913941984] [2021-12-07 00:00:38,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:38,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:00:38,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:00:38,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:00:38,604 INFO L87 Difference]: Start difference. First operand 1330 states and 1798 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:00:38,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:38,988 INFO L93 Difference]: Finished difference Result 2671 states and 3615 transitions. [2021-12-07 00:00:38,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:00:38,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 146 [2021-12-07 00:00:38,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:38,998 INFO L225 Difference]: With dead ends: 2671 [2021-12-07 00:00:38,998 INFO L226 Difference]: Without dead ends: 1351 [2021-12-07 00:00:39,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:00:39,005 INFO L933 BasicCegarLoop]: 702 mSDtfsCounter, 13 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3485 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:39,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 3485 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:00:39,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2021-12-07 00:00:39,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1337. [2021-12-07 00:00:39,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 950 states have (on average 1.2305263157894737) internal successors, (1169), 972 states have internal predecessors, (1169), 317 states have call successors, (317), 68 states have call predecessors, (317), 69 states have return successors, (322), 310 states have call predecessors, (322), 313 states have call successors, (322) [2021-12-07 00:00:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1808 transitions. [2021-12-07 00:00:39,088 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1808 transitions. Word has length 146 [2021-12-07 00:00:39,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:39,089 INFO L470 AbstractCegarLoop]: Abstraction has 1337 states and 1808 transitions. [2021-12-07 00:00:39,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:00:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1808 transitions. [2021-12-07 00:00:39,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-07 00:00:39,092 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:39,093 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:00:39,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-07 00:00:39,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:39,293 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:39,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:39,294 INFO L85 PathProgramCache]: Analyzing trace with hash 971530265, now seen corresponding path program 1 times [2021-12-07 00:00:39,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:39,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013410092] [2021-12-07 00:00:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:39,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:39,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:39,296 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:39,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-07 00:00:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:39,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-07 00:00:39,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:40,159 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 [2021-12-07 00:00:40,165 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 [2021-12-07 00:00:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-07 00:00:40,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:40,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:40,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013410092] [2021-12-07 00:00:40,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013410092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:40,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:40,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:00:40,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341913926] [2021-12-07 00:00:40,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:40,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:00:40,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:40,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:00:40,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:00:40,276 INFO L87 Difference]: Start difference. First operand 1337 states and 1808 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-07 00:00:42,435 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 [] [2021-12-07 00:00:45,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:47,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:49,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:51,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:53,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:55,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:57,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:59,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:02,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:04,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:05,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:07,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:11,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:13,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:14,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:16,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:18,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:21,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:21,565 INFO L93 Difference]: Finished difference Result 1399 states and 1888 transitions. [2021-12-07 00:01:21,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:01:21,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 146 [2021-12-07 00:01:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:21,575 INFO L225 Difference]: With dead ends: 1399 [2021-12-07 00:01:21,575 INFO L226 Difference]: Without dead ends: 1339 [2021-12-07 00:01:21,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:01:21,576 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 4 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:21,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3919 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 15 Unknown, 0 Unchecked, 41.2s Time] [2021-12-07 00:01:21,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2021-12-07 00:01:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1337. [2021-12-07 00:01:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 950 states have (on average 1.2284210526315789) internal successors, (1167), 972 states have internal predecessors, (1167), 317 states have call successors, (317), 68 states have call predecessors, (317), 69 states have return successors, (322), 310 states have call predecessors, (322), 313 states have call successors, (322) [2021-12-07 00:01:21,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1806 transitions. [2021-12-07 00:01:21,622 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1806 transitions. Word has length 146 [2021-12-07 00:01:21,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:21,622 INFO L470 AbstractCegarLoop]: Abstraction has 1337 states and 1806 transitions. [2021-12-07 00:01:21,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-07 00:01:21,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1806 transitions. [2021-12-07 00:01:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-07 00:01:21,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:21,625 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:01:21,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-07 00:01:21,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:21,827 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:01:21,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:21,828 INFO L85 PathProgramCache]: Analyzing trace with hash -480950281, now seen corresponding path program 1 times [2021-12-07 00:01:21,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:21,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069153144] [2021-12-07 00:01:21,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:21,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:21,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:21,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:21,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-07 00:01:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:27,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-07 00:01:27,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:27,621 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 [2021-12-07 00:01:27,633 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 [2021-12-07 00:01:28,010 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:01:28,010 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 23 treesize of output 22 [2021-12-07 00:01:28,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:28,027 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 [2021-12-07 00:01:28,377 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:01:28,377 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 23 treesize of output 22 [2021-12-07 00:01:28,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:28,393 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 [2021-12-07 00:01:28,711 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 24 treesize of output 20 [2021-12-07 00:01:28,719 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 24 treesize of output 20 [2021-12-07 00:01:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:28,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 15 treesize of output 7 [2021-12-07 00:01:28,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 28 [2021-12-07 00:01:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-07 00:01:28,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:01:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-07 00:01:29,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:29,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069153144] [2021-12-07 00:01:29,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069153144] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:01:29,142 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:01:29,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-12-07 00:01:29,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607734631] [2021-12-07 00:01:29,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:01:29,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:01:29,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:29,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:01:29,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:01:29,143 INFO L87 Difference]: Start difference. First operand 1337 states and 1806 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-07 00:01:31,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:33,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:35,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:37,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:39,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:42,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:44,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:46,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:48,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:50,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:52,370 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 [] [2021-12-07 00:01:52,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:52,677 INFO L93 Difference]: Finished difference Result 2386 states and 3197 transitions. [2021-12-07 00:01:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:01:52,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2021-12-07 00:01:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:52,685 INFO L225 Difference]: With dead ends: 2386 [2021-12-07 00:01:52,686 INFO L226 Difference]: Without dead ends: 1008 [2021-12-07 00:01:52,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 279 SyntacticMatches, 8 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:01:52,689 INFO L933 BasicCegarLoop]: 702 mSDtfsCounter, 2 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4005 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:52,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4005 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 9 Unknown, 101 Unchecked, 23.4s Time] [2021-12-07 00:01:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-12-07 00:01:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2021-12-07 00:01:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 717 states have (on average 1.2259414225941423) internal successors, (879), 734 states have internal predecessors, (879), 226 states have call successors, (226), 63 states have call predecessors, (226), 64 states have return successors, (231), 221 states have call predecessors, (231), 224 states have call successors, (231) [2021-12-07 00:01:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1336 transitions. [2021-12-07 00:01:52,722 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1336 transitions. Word has length 147 [2021-12-07 00:01:52,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:52,723 INFO L470 AbstractCegarLoop]: Abstraction has 1008 states and 1336 transitions. [2021-12-07 00:01:52,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-07 00:01:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1336 transitions. [2021-12-07 00:01:52,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-07 00:01:52,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:52,725 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:01:52,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-07 00:01:52,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:52,927 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:01:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1300549654, now seen corresponding path program 1 times [2021-12-07 00:01:52,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207067137] [2021-12-07 00:01:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:52,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:52,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:52,935 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:52,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-07 00:01:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:53,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 00:01:53,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-12-07 00:01:53,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:01:53,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:53,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207067137] [2021-12-07 00:01:53,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207067137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:53,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:53,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:01:53,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588017023] [2021-12-07 00:01:53,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:53,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:01:53,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:53,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:01:53,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:01:53,933 INFO L87 Difference]: Start difference. First operand 1008 states and 1336 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:01:54,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:54,010 INFO L93 Difference]: Finished difference Result 1696 states and 2271 transitions. [2021-12-07 00:01:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:01:54,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2021-12-07 00:01:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:54,015 INFO L225 Difference]: With dead ends: 1696 [2021-12-07 00:01:54,016 INFO L226 Difference]: Without dead ends: 1011 [2021-12-07 00:01:54,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:01:54,018 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4129 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:54,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4129 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:01:54,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2021-12-07 00:01:54,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1011. [2021-12-07 00:01:54,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 720 states have (on average 1.2236111111111112) internal successors, (881), 735 states have internal predecessors, (881), 226 states have call successors, (226), 63 states have call predecessors, (226), 64 states have return successors, (231), 223 states have call predecessors, (231), 224 states have call successors, (231) [2021-12-07 00:01:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1338 transitions. [2021-12-07 00:01:54,054 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1338 transitions. Word has length 147 [2021-12-07 00:01:54,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:54,054 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 1338 transitions. [2021-12-07 00:01:54,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:01:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1338 transitions. [2021-12-07 00:01:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-07 00:01:54,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:54,057 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:54,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-07 00:01:54,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:54,257 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:01:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:54,258 INFO L85 PathProgramCache]: Analyzing trace with hash 345028375, now seen corresponding path program 2 times [2021-12-07 00:01:54,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:54,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335454372] [2021-12-07 00:01:54,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:01:54,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:54,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:54,259 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:54,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-07 00:01:55,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:01:55,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:01:56,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 00:01:56,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-07 00:01:56,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:01:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-07 00:01:57,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:57,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335454372] [2021-12-07 00:01:57,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335454372] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:01:57,343 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:01:57,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-12-07 00:01:57,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793436171] [2021-12-07 00:01:57,344 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:01:57,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:01:57,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:57,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:01:57,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:01:57,345 INFO L87 Difference]: Start difference. First operand 1011 states and 1338 transitions. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 9 states have call successors, (29), 8 states have call predecessors, (29), 6 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2021-12-07 00:01:59,705 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 [] [2021-12-07 00:02:01,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:04,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:08,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:10,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:12,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:14,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:16,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:17,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:19,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:21,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:23,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:25,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:27,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:31,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:33,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:35,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:38,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:40,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:42,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:44,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:46,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:48,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:51,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:53,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:55,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:57,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:02:59,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:01,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:03,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:06,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:08,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:10,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:13,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:15,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:17,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:19,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:23,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:25,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:26,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:30,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:32,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:34,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:37,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:40,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:42,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:43,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:46,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:49,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:51,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:54,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:56,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:59,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:00,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:04:00,086 INFO L93 Difference]: Finished difference Result 4439 states and 5974 transitions. [2021-12-07 00:04:00,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 00:04:00,087 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 9 states have call successors, (29), 8 states have call predecessors, (29), 6 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 147 [2021-12-07 00:04:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:04:00,105 INFO L225 Difference]: With dead ends: 4439 [2021-12-07 00:04:00,106 INFO L226 Difference]: Without dead ends: 3717 [2021-12-07 00:04:00,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:04:00,109 INFO L933 BasicCegarLoop]: 2179 mSDtfsCounter, 4421 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 5213 mSolverCounterSat, 2456 mSolverCounterUnsat, 40 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 6205 SdHoareTripleChecker+Invalid, 7709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2456 IncrementalHoareTripleChecker+Valid, 5213 IncrementalHoareTripleChecker+Invalid, 40 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:04:00,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4699 Valid, 6205 Invalid, 7709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2456 Valid, 5213 Invalid, 40 Unknown, 0 Unchecked, 122.1s Time] [2021-12-07 00:04:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2021-12-07 00:04:00,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3300. [2021-12-07 00:04:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2339 states have (on average 1.2278751603249252) internal successors, (2872), 2393 states have internal predecessors, (2872), 762 states have call successors, (762), 189 states have call predecessors, (762), 198 states have return successors, (849), 750 states have call predecessors, (849), 758 states have call successors, (849) [2021-12-07 00:04:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4483 transitions. [2021-12-07 00:04:00,240 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4483 transitions. Word has length 147 [2021-12-07 00:04:00,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:04:00,240 INFO L470 AbstractCegarLoop]: Abstraction has 3300 states and 4483 transitions. [2021-12-07 00:04:00,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 9 states have call successors, (29), 8 states have call predecessors, (29), 6 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2021-12-07 00:04:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4483 transitions. [2021-12-07 00:04:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-07 00:04:00,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:04:00,243 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:04:00,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-07 00:04:00,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:04:00,444 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:04:00,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:04:00,444 INFO L85 PathProgramCache]: Analyzing trace with hash -981047690, now seen corresponding path program 1 times [2021-12-07 00:04:00,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:04:00,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307328602] [2021-12-07 00:04:00,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:04:00,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:04:00,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:04:00,446 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:04:00,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-07 00:04:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:01,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-07 00:04:01,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:04:01,521 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 [2021-12-07 00:04:01,526 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 [2021-12-07 00:04:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-07 00:04:01,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:04:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-07 00:04:02,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:04:02,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307328602] [2021-12-07 00:04:02,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307328602] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 00:04:02,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:04:02,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-12-07 00:04:02,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536426430] [2021-12-07 00:04:02,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:04:02,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:04:02,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:04:02,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:04:02,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:04:02,178 INFO L87 Difference]: Start difference. First operand 3300 states and 4483 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:04:04,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:06,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:08,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:10,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:12,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:14,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:17,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:20,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:22,068 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 [] [2021-12-07 00:04:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:04:22,519 INFO L93 Difference]: Finished difference Result 3451 states and 4671 transitions. [2021-12-07 00:04:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:04:22,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 157 [2021-12-07 00:04:22,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:04:22,537 INFO L225 Difference]: With dead ends: 3451 [2021-12-07 00:04:22,538 INFO L226 Difference]: Without dead ends: 3302 [2021-12-07 00:04:22,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-12-07 00:04:22,539 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 6 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:04:22,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 3325 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 7 Unknown, 0 Unchecked, 20.1s Time] [2021-12-07 00:04:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2021-12-07 00:04:22,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 3302. [2021-12-07 00:04:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3302 states, 2340 states have (on average 1.2264957264957266) internal successors, (2870), 2395 states have internal predecessors, (2870), 763 states have call successors, (763), 189 states have call predecessors, (763), 198 states have return successors, (849), 750 states have call predecessors, (849), 758 states have call successors, (849) [2021-12-07 00:04:22,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3302 states to 3302 states and 4482 transitions. [2021-12-07 00:04:22,709 INFO L78 Accepts]: Start accepts. Automaton has 3302 states and 4482 transitions. Word has length 157 [2021-12-07 00:04:22,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:04:22,710 INFO L470 AbstractCegarLoop]: Abstraction has 3302 states and 4482 transitions. [2021-12-07 00:04:22,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-07 00:04:22,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3302 states and 4482 transitions. [2021-12-07 00:04:22,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-07 00:04:22,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:04:22,712 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:04:22,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-07 00:04:22,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:04:22,913 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:04:22,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:04:22,913 INFO L85 PathProgramCache]: Analyzing trace with hash 507809139, now seen corresponding path program 1 times [2021-12-07 00:04:22,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:04:22,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891038895] [2021-12-07 00:04:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:04:22,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:04:22,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:04:22,915 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:04:22,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-07 00:04:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:27,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-07 00:04:27,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:04:27,594 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 [2021-12-07 00:04:27,609 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 [2021-12-07 00:04:28,031 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:04:28,031 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 23 treesize of output 22 [2021-12-07 00:04:28,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:04:28,049 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 [2021-12-07 00:04:28,430 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:04:28,430 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 23 treesize of output 22 [2021-12-07 00:04:28,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:04:28,447 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 [2021-12-07 00:04:28,472 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 [2021-12-07 00:04:28,479 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 [2021-12-07 00:04:28,568 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 66 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-07 00:04:28,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:04:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-07 00:04:28,898 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:04:28,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891038895] [2021-12-07 00:04:28,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891038895] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:04:28,898 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:04:28,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-12-07 00:04:28,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744802154] [2021-12-07 00:04:28,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:04:28,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:04:28,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:04:28,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:04:28,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:04:28,900 INFO L87 Difference]: Start difference. First operand 3302 states and 4482 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 4 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-07 00:04:31,027 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 [] [2021-12-07 00:04:33,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:35,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:37,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:39,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:42,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:43,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:45,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:47,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:49,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:51,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:51,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:04:51,613 INFO L93 Difference]: Finished difference Result 6073 states and 8199 transitions. [2021-12-07 00:04:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:04:51,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 4 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 158 [2021-12-07 00:04:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:04:51,629 INFO L225 Difference]: With dead ends: 6073 [2021-12-07 00:04:51,629 INFO L226 Difference]: Without dead ends: 2712 [2021-12-07 00:04:51,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 304 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:04:51,636 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 4 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:04:51,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4014 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 9 Unknown, 101 Unchecked, 22.5s Time] [2021-12-07 00:04:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2021-12-07 00:04:51,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2710. [2021-12-07 00:04:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2710 states, 1920 states have (on average 1.2234375) internal successors, (2349), 1964 states have internal predecessors, (2349), 612 states have call successors, (612), 166 states have call predecessors, (612), 177 states have return successors, (686), 606 states have call predecessors, (686), 609 states have call successors, (686) [2021-12-07 00:04:51,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3647 transitions. [2021-12-07 00:04:51,739 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3647 transitions. Word has length 158 [2021-12-07 00:04:51,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:04:51,739 INFO L470 AbstractCegarLoop]: Abstraction has 2710 states and 3647 transitions. [2021-12-07 00:04:51,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 4 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-07 00:04:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3647 transitions. [2021-12-07 00:04:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-07 00:04:51,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:04:51,742 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:04:51,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-07 00:04:51,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:04:51,943 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:04:51,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:04:51,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1189281783, now seen corresponding path program 1 times [2021-12-07 00:04:51,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:04:51,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529387149] [2021-12-07 00:04:51,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:04:51,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:04:51,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:04:51,946 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:04:51,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-07 00:04:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:04:52,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-07 00:04:52,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:04:53,217 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-07 00:04:53,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:04:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-07 00:04:55,025 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:04:55,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529387149] [2021-12-07 00:04:55,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529387149] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:04:55,025 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:04:55,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15] total 22 [2021-12-07 00:04:55,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52286193] [2021-12-07 00:04:55,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:04:55,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-07 00:04:55,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:04:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-07 00:04:55,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:04:55,029 INFO L87 Difference]: Start difference. First operand 2710 states and 3647 transitions. Second operand has 22 states, 22 states have (on average 6.909090909090909) internal successors, (152), 22 states have internal predecessors, (152), 17 states have call successors, (31), 10 states have call predecessors, (31), 7 states have return successors, (28), 16 states have call predecessors, (28), 14 states have call successors, (28) [2021-12-07 00:04:57,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:04:59,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:01,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:03,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:05,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:07,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:09,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:11,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:13,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:15,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:17,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:19,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:22,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:25,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:27,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:28,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:30,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:32,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:34,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:35,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:37,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:39,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:41,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:43,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:44,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:47,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:49,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:51,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:53,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:05:55,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:00,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:02,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:04,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:06,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:08,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:10,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:14,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:16,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:18,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:21,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:23,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:25,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:30,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:32,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:34,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:36,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:38,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:41,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:43,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:45,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:46,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:56,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:58,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:06:59,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:01,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:05,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:06,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:09,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:11,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:13,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:18,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:20,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:23,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:25,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:27,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:28,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:30,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:34,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:36,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:41,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:43,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:45,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:47,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:49,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:55,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:07:56,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:00,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:03,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:05,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:06,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:14,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:16,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:21,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:23,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:29,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:33,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:35,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:37,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:41,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:42,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:44,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:46,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:48,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:50,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:52,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:54,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:57,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:08:59,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:01,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:03,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:06,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:09,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:13,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:16,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:19,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:20,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:22,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:24,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:25,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:26,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:28,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:33,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:35,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:37,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:39,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:41,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:43,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:45,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:47,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:49,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:51,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:54,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:57,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:09:59,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:01,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:05,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:09,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:11,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:13,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:15,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:18,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:21,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:23,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:28,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:10:30,366 INFO L93 Difference]: Finished difference Result 12249 states and 16299 transitions. [2021-12-07 00:10:30,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-07 00:10:30,367 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.909090909090909) internal successors, (152), 22 states have internal predecessors, (152), 17 states have call successors, (31), 10 states have call predecessors, (31), 7 states have return successors, (28), 16 states have call predecessors, (28), 14 states have call successors, (28) Word has length 147 [2021-12-07 00:10:30,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:10:30,415 INFO L225 Difference]: With dead ends: 12249 [2021-12-07 00:10:30,415 INFO L226 Difference]: Without dead ends: 10703 [2021-12-07 00:10:30,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=948, Invalid=2358, Unknown=0, NotChecked=0, Total=3306 [2021-12-07 00:10:30,422 INFO L933 BasicCegarLoop]: 2576 mSDtfsCounter, 22390 mSDsluCounter, 11071 mSDsCounter, 0 mSdLazyCounter, 18876 mSolverCounterSat, 15372 mSolverCounterUnsat, 97 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22895 SdHoareTripleChecker+Valid, 13647 SdHoareTripleChecker+Invalid, 34345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15372 IncrementalHoareTripleChecker+Valid, 18876 IncrementalHoareTripleChecker+Invalid, 97 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 331.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:10:30,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22895 Valid, 13647 Invalid, 34345 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15372 Valid, 18876 Invalid, 97 Unknown, 0 Unchecked, 331.2s Time] [2021-12-07 00:10:30,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2021-12-07 00:10:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 10355. [2021-12-07 00:10:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10355 states, 7323 states have (on average 1.2217670353680186) internal successors, (8947), 7497 states have internal predecessors, (8947), 2343 states have call successors, (2343), 650 states have call predecessors, (2343), 688 states have return successors, (2647), 2309 states have call predecessors, (2647), 2338 states have call successors, (2647) [2021-12-07 00:10:30,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10355 states to 10355 states and 13937 transitions. [2021-12-07 00:10:30,850 INFO L78 Accepts]: Start accepts. Automaton has 10355 states and 13937 transitions. Word has length 147 [2021-12-07 00:10:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:10:30,851 INFO L470 AbstractCegarLoop]: Abstraction has 10355 states and 13937 transitions. [2021-12-07 00:10:30,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.909090909090909) internal successors, (152), 22 states have internal predecessors, (152), 17 states have call successors, (31), 10 states have call predecessors, (31), 7 states have return successors, (28), 16 states have call predecessors, (28), 14 states have call successors, (28) [2021-12-07 00:10:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10355 states and 13937 transitions. [2021-12-07 00:10:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-07 00:10:30,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:10:30,854 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-07 00:10:30,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-07 00:10:31,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:10:31,054 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:10:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:10:31,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1436807920, now seen corresponding path program 1 times [2021-12-07 00:10:31,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:10:31,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559636489] [2021-12-07 00:10:31,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:10:31,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:10:31,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:10:31,057 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:10:31,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-07 00:10:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:10:31,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-07 00:10:31,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:10:32,390 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 [2021-12-07 00:10:32,395 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 [2021-12-07 00:10:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-07 00:10:32,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:10:33,183 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-07 00:10:33,184 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:10:33,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559636489] [2021-12-07 00:10:33,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559636489] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 00:10:33,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:10:33,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-12-07 00:10:33,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543543519] [2021-12-07 00:10:33,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:10:33,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:10:33,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:10:33,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:10:33,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:10:33,186 INFO L87 Difference]: Start difference. First operand 10355 states and 13937 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:10:35,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:37,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:39,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:41,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:43,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:46,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:48,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:50,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:52,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:54,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:10:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:10:54,926 INFO L93 Difference]: Finished difference Result 10805 states and 14512 transitions. [2021-12-07 00:10:54,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:10:54,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 168 [2021-12-07 00:10:54,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:10:54,968 INFO L225 Difference]: With dead ends: 10805 [2021-12-07 00:10:54,968 INFO L226 Difference]: Without dead ends: 10377 [2021-12-07 00:10:54,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-12-07 00:10:54,972 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 7 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:10:54,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 3324 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 8 Unknown, 0 Unchecked, 21.4s Time] [2021-12-07 00:10:54,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10377 states. [2021-12-07 00:10:55,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10377 to 10377. [2021-12-07 00:10:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10377 states, 7334 states have (on average 1.2207526588491955) internal successors, (8953), 7514 states have internal predecessors, (8953), 2354 states have call successors, (2354), 650 states have call predecessors, (2354), 688 states have return successors, (2654), 2314 states have call predecessors, (2654), 2344 states have call successors, (2654) [2021-12-07 00:10:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10377 states to 10377 states and 13961 transitions. [2021-12-07 00:10:55,335 INFO L78 Accepts]: Start accepts. Automaton has 10377 states and 13961 transitions. Word has length 168 [2021-12-07 00:10:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:10:55,335 INFO L470 AbstractCegarLoop]: Abstraction has 10377 states and 13961 transitions. [2021-12-07 00:10:55,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-07 00:10:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 10377 states and 13961 transitions. [2021-12-07 00:10:55,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-07 00:10:55,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:10:55,337 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:10:55,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-07 00:10:55,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:10:55,538 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:10:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:10:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1007445261, now seen corresponding path program 1 times [2021-12-07 00:10:55,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:10:55,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695822434] [2021-12-07 00:10:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:10:55,539 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:10:55,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:10:55,540 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:10:55,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-07 00:10:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:10:56,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:10:56,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:10:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-12-07 00:10:56,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:10:56,479 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:10:56,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695822434] [2021-12-07 00:10:56,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695822434] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:10:56,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:10:56,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:10:56,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114712084] [2021-12-07 00:10:56,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:10:56,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:10:56,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:10:56,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:10:56,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:10:56,480 INFO L87 Difference]: Start difference. First operand 10377 states and 13961 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:10:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:10:56,865 INFO L93 Difference]: Finished difference Result 20403 states and 27511 transitions. [2021-12-07 00:10:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:10:56,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 169 [2021-12-07 00:10:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:10:56,893 INFO L225 Difference]: With dead ends: 20403 [2021-12-07 00:10:56,893 INFO L226 Difference]: Without dead ends: 10377 [2021-12-07 00:10:56,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:10:56,914 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 2 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4136 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:10:56,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4136 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:10:56,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10377 states. [2021-12-07 00:10:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10377 to 10357. [2021-12-07 00:10:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10357 states, 7314 states have (on average 1.2193054416188132) internal successors, (8918), 7504 states have internal predecessors, (8918), 2354 states have call successors, (2354), 650 states have call predecessors, (2354), 688 states have return successors, (2654), 2304 states have call predecessors, (2654), 2344 states have call successors, (2654) [2021-12-07 00:10:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10357 states to 10357 states and 13926 transitions. [2021-12-07 00:10:57,382 INFO L78 Accepts]: Start accepts. Automaton has 10357 states and 13926 transitions. Word has length 169 [2021-12-07 00:10:57,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:10:57,382 INFO L470 AbstractCegarLoop]: Abstraction has 10357 states and 13926 transitions. [2021-12-07 00:10:57,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-07 00:10:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 10357 states and 13926 transitions. [2021-12-07 00:10:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-07 00:10:57,385 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:10:57,385 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-07 00:10:57,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-07 00:10:57,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:10:57,586 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:10:57,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:10:57,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2032139182, now seen corresponding path program 2 times [2021-12-07 00:10:57,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:10:57,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522515147] [2021-12-07 00:10:57,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:10:57,587 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:10:57,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:10:57,588 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:10:57,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-07 00:11:00,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:11:00,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:11:00,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 00:11:00,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:11:00,977 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 [2021-12-07 00:11:00,991 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 [2021-12-07 00:11:01,388 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 00:11:01,389 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 23 treesize of output 22 [2021-12-07 00:11:01,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:01,406 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 [2021-12-07 00:11:01,436 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 [2021-12-07 00:11:01,442 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 [2021-12-07 00:11:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-12-07 00:11:01,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:11:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-07 00:11:01,844 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:11:01,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522515147] [2021-12-07 00:11:01,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522515147] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:11:01,844 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:11:01,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-12-07 00:11:01,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043262995] [2021-12-07 00:11:01,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:11:01,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:11:01,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:11:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:11:01,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:11:01,846 INFO L87 Difference]: Start difference. First operand 10357 states and 13926 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-07 00:11:02,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:11:02,330 INFO L93 Difference]: Finished difference Result 19478 states and 26057 transitions. [2021-12-07 00:11:02,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:11:02,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) Word has length 169 [2021-12-07 00:11:02,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:11:02,354 INFO L225 Difference]: With dead ends: 19478 [2021-12-07 00:11:02,355 INFO L226 Difference]: Without dead ends: 9348 [2021-12-07 00:11:02,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 329 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:11:02,375 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 7 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:11:02,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 3417 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 100 Unchecked, 0.1s Time] [2021-12-07 00:11:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2021-12-07 00:11:02,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 9333. [2021-12-07 00:11:02,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9333 states, 6584 states have (on average 1.2135479951397328) internal successors, (7990), 6752 states have internal predecessors, (7990), 2077 states have call successors, (2077), 618 states have call predecessors, (2077), 671 states have return successors, (2354), 2051 states have call predecessors, (2354), 2067 states have call successors, (2354) [2021-12-07 00:11:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9333 states to 9333 states and 12421 transitions. [2021-12-07 00:11:02,766 INFO L78 Accepts]: Start accepts. Automaton has 9333 states and 12421 transitions. Word has length 169 [2021-12-07 00:11:02,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:11:02,766 INFO L470 AbstractCegarLoop]: Abstraction has 9333 states and 12421 transitions. [2021-12-07 00:11:02,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-07 00:11:02,767 INFO L276 IsEmpty]: Start isEmpty. Operand 9333 states and 12421 transitions. [2021-12-07 00:11:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-07 00:11:02,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:11:02,768 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:11:02,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-07 00:11:02,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:11:02,970 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:11:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:11:02,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1191246487, now seen corresponding path program 1 times [2021-12-07 00:11:02,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:11:02,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475762756] [2021-12-07 00:11:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:11:02,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:11:02,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:11:02,978 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:11:02,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-07 00:11:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:03,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 00:11:03,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:11:03,920 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 [2021-12-07 00:11:03,934 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 [2021-12-07 00:11:04,744 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 [2021-12-07 00:11:04,750 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 [2021-12-07 00:11:04,905 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-12-07 00:11:04,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:11:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-12-07 00:11:05,640 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:11:05,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475762756] [2021-12-07 00:11:05,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475762756] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 00:11:05,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:11:05,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2021-12-07 00:11:05,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759521023] [2021-12-07 00:11:05,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:11:05,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:11:05,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:11:05,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:11:05,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-07 00:11:05,642 INFO L87 Difference]: Start difference. First operand 9333 states and 12421 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:11:07,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:09,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:11,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:13,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:15,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:20,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:22,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:24,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:26,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:28,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:29,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:11:29,075 INFO L93 Difference]: Finished difference Result 9800 states and 13022 transitions. [2021-12-07 00:11:29,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:11:29,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 179 [2021-12-07 00:11:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:11:29,102 INFO L225 Difference]: With dead ends: 9800 [2021-12-07 00:11:29,102 INFO L226 Difference]: Without dead ends: 9491 [2021-12-07 00:11:29,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 338 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:11:29,107 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 15 mSDsluCounter, 4010 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4698 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:11:29,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 4698 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 8 Unknown, 0 Unchecked, 23.1s Time] [2021-12-07 00:11:29,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9491 states. [2021-12-07 00:11:29,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9491 to 9384. [2021-12-07 00:11:29,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9384 states, 6627 states have (on average 1.2138222423419345) internal successors, (8044), 6792 states have internal predecessors, (8044), 2085 states have call successors, (2085), 618 states have call predecessors, (2085), 671 states have return successors, (2359), 2062 states have call predecessors, (2359), 2071 states have call successors, (2359) [2021-12-07 00:11:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9384 states to 9384 states and 12488 transitions. [2021-12-07 00:11:29,402 INFO L78 Accepts]: Start accepts. Automaton has 9384 states and 12488 transitions. Word has length 179 [2021-12-07 00:11:29,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:11:29,402 INFO L470 AbstractCegarLoop]: Abstraction has 9384 states and 12488 transitions. [2021-12-07 00:11:29,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-07 00:11:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand 9384 states and 12488 transitions. [2021-12-07 00:11:29,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-07 00:11:29,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:11:29,405 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-07 00:11:29,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-12-07 00:11:29,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:11:29,607 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:11:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:11:29,608 INFO L85 PathProgramCache]: Analyzing trace with hash 295847622, now seen corresponding path program 1 times [2021-12-07 00:11:29,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:11:29,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252869532] [2021-12-07 00:11:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:11:29,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:11:29,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:11:29,614 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:11:29,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-07 00:11:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:11:30,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 00:11:30,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:11:30,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-12-07 00:11:30,736 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 20 treesize of output 8 [2021-12-07 00:11:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-12-07 00:11:30,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:11:30,876 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:11:30,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252869532] [2021-12-07 00:11:30,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252869532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:11:30,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:11:30,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:11:30,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721448960] [2021-12-07 00:11:30,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:11:30,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:11:30,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:11:30,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:11:30,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:11:30,878 INFO L87 Difference]: Start difference. First operand 9384 states and 12488 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-07 00:11:33,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:35,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:37,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:39,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:41,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:46,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:48,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:50,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:52,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:54,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:56,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:11:58,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:00,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:02,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:04,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:06,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:08,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:11,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:13,284 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 [] [2021-12-07 00:12:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:12:13,850 INFO L93 Difference]: Finished difference Result 9670 states and 12791 transitions. [2021-12-07 00:12:13,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:12:13,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) Word has length 193 [2021-12-07 00:12:13,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:12:13,874 INFO L225 Difference]: With dead ends: 9670 [2021-12-07 00:12:13,875 INFO L226 Difference]: Without dead ends: 9370 [2021-12-07 00:12:13,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:12:13,879 INFO L933 BasicCegarLoop]: 694 mSDtfsCounter, 15 mSDsluCounter, 6128 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 2 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:12:13,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 6822 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 208 Invalid, 16 Unknown, 0 Unchecked, 42.7s Time] [2021-12-07 00:12:13,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9370 states. [2021-12-07 00:12:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9370 to 9258. [2021-12-07 00:12:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9258 states, 6561 states have (on average 1.2149062642889803) internal successors, (7971), 6721 states have internal predecessors, (7971), 2025 states have call successors, (2025), 618 states have call predecessors, (2025), 671 states have return successors, (2254), 2007 states have call predecessors, (2254), 2011 states have call successors, (2254) [2021-12-07 00:12:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9258 states to 9258 states and 12250 transitions. [2021-12-07 00:12:14,180 INFO L78 Accepts]: Start accepts. Automaton has 9258 states and 12250 transitions. Word has length 193 [2021-12-07 00:12:14,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:12:14,180 INFO L470 AbstractCegarLoop]: Abstraction has 9258 states and 12250 transitions. [2021-12-07 00:12:14,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (22), 5 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-07 00:12:14,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9258 states and 12250 transitions. [2021-12-07 00:12:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-07 00:12:14,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:12:14,182 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:12:14,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-12-07 00:12:14,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:12:14,384 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:12:14,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:12:14,385 INFO L85 PathProgramCache]: Analyzing trace with hash -730439303, now seen corresponding path program 1 times [2021-12-07 00:12:14,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:12:14,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947821151] [2021-12-07 00:12:14,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:12:14,387 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:12:14,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:12:14,389 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:12:14,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3feaafd-5f65-46bd-a7ce-c84f901ddc94/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-07 00:12:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:12:15,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 00:12:15,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:12:15,647 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 [2021-12-07 00:12:15,661 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 [2021-12-07 00:12:15,739 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 [2021-12-07 00:12:15,745 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 [2021-12-07 00:12:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-12-07 00:12:15,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:12:15,989 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:12:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947821151] [2021-12-07 00:12:15,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947821151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:12:15,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:12:15,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:12:15,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14362982] [2021-12-07 00:12:15,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:12:15,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:12:15,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:12:15,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:12:15,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:12:15,990 INFO L87 Difference]: Start difference. First operand 9258 states and 12250 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-07 00:12:17,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:12:19,695 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 []