./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro --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 e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:46:35,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:46:35,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:46:35,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:46:35,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:46:35,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:46:35,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:46:35,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:46:35,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:46:35,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:46:35,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:46:35,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:46:35,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:46:35,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:46:35,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:46:35,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:46:35,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:46:35,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:46:35,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:46:35,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:46:35,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:46:35,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:46:35,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:46:35,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:46:35,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:46:35,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:46:35,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:46:35,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:46:35,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:46:35,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:46:35,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:46:35,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:46:35,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:46:35,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:46:35,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:46:35,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:46:35,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:46:35,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:46:35,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:46:35,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:46:35,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:46:35,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:46:35,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:46:35,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:46:35,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:46:35,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:46:35,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:46:35,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:46:35,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:46:35,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:46:35,710 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:46:35,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:46:35,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:46:35,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:46:35,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:46:35,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:46:35,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:46:35,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:46:35,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:46:35,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:46:35,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:46:35,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:46:35,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:46:35,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:46:35,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:46:35,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:46:35,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:46:35,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:46:35,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:46:35,719 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:46:35,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:46:35,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:46:35,720 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_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b [2022-11-18 18:46:36,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:46:36,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:46:36,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:46:36,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:46:36,142 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:46:36,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-18 18:46:36,234 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/3b123797c/cd09c607427e438787452606b833c1d3/FLAG360933178 [2022-11-18 18:46:37,196 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:46:37,196 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-18 18:46:37,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/3b123797c/cd09c607427e438787452606b833c1d3/FLAG360933178 [2022-11-18 18:46:37,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/3b123797c/cd09c607427e438787452606b833c1d3 [2022-11-18 18:46:37,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:46:37,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:46:37,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:46:37,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:46:37,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:46:37,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:46:37" (1/1) ... [2022-11-18 18:46:37,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbee9b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:37, skipping insertion in model container [2022-11-18 18:46:37,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:46:37" (1/1) ... [2022-11-18 18:46:37,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:46:37,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:46:39,260 WARN L234 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_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-18 18:46:39,311 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-18 18:46:39,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:46:39,391 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:46:39,775 WARN L234 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_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-18 18:46:39,789 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-18 18:46:39,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:46:39,878 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:46:39,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39 WrapperNode [2022-11-18 18:46:39,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:46:39,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:46:39,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:46:39,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:46:39,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:39,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,182 INFO L138 Inliner]: procedures = 141, calls = 1103, calls flagged for inlining = 57, calls inlined = 55, statements flattened = 2428 [2022-11-18 18:46:40,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:46:40,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:46:40,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:46:40,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:46:40,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:46:40,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:46:40,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:46:40,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:46:40,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (1/1) ... [2022-11-18 18:46:40,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:46:40,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:46:40,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:46:40,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:46:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2022-11-18 18:46:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2022-11-18 18:46:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-18 18:46:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-18 18:46:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:46:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2022-11-18 18:46:40,622 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2022-11-18 18:46:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2022-11-18 18:46:40,622 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2022-11-18 18:46:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-18 18:46:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:46:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:46:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:46:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:46:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:46:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 18:46:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 18:46:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-18 18:46:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-18 18:46:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:46:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:46:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 18:46:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 18:46:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:46:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:46:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-11-18 18:46:40,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-11-18 18:46:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-18 18:46:40,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-18 18:46:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2022-11-18 18:46:40,625 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2022-11-18 18:46:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:46:40,626 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:46:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:46:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:46:40,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:46:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:46:40,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:46:40,627 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 18:46:40,627 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 18:46:40,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:46:40,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:46:40,628 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2022-11-18 18:46:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2022-11-18 18:46:40,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 18:46:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 18:46:40,629 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:46:40,629 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:46:40,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:46:40,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 18:46:40,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 18:46:40,630 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-18 18:46:40,630 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-18 18:46:40,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:46:40,631 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-18 18:46:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-18 18:46:40,632 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2022-11-18 18:46:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2022-11-18 18:46:40,633 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-18 18:46:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-18 18:46:40,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:46:40,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:46:40,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 18:46:40,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:46:40,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-18 18:46:40,635 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2022-11-18 18:46:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2022-11-18 18:46:40,635 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2022-11-18 18:46:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2022-11-18 18:46:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2022-11-18 18:46:40,636 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2022-11-18 18:46:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:46:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:46:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2022-11-18 18:46:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2022-11-18 18:46:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 18:46:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 18:46:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2022-11-18 18:46:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2022-11-18 18:46:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 18:46:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 18:46:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2022-11-18 18:46:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2022-11-18 18:46:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 18:46:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 18:46:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:46:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2022-11-18 18:46:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2022-11-18 18:46:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:46:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:46:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2022-11-18 18:46:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2022-11-18 18:46:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 18:46:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2022-11-18 18:46:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2022-11-18 18:46:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:46:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:46:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2022-11-18 18:46:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2022-11-18 18:46:41,433 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:46:41,446 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:46:45,903 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:46:57,138 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:46:57,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:46:57,170 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:46:57,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:46:57 BoogieIcfgContainer [2022-11-18 18:46:57,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:46:57,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:46:57,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:46:57,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:46:57,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:46:37" (1/3) ... [2022-11-18 18:46:57,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea4386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:46:57, skipping insertion in model container [2022-11-18 18:46:57,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:46:39" (2/3) ... [2022-11-18 18:46:57,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea4386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:46:57, skipping insertion in model container [2022-11-18 18:46:57,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:46:57" (3/3) ... [2022-11-18 18:46:57,194 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-18 18:46:57,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:46:57,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:46:57,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:46:57,380 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6719eaf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:46:57,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:46:57,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-18 18:46:57,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 18:46:57,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:57,413 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:46:57,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:46:57,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:57,420 INFO L85 PathProgramCache]: Analyzing trace with hash 653302310, now seen corresponding path program 1 times [2022-11-18 18:46:57,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:57,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868286595] [2022-11-18 18:46:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:57,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:46:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:46:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:46:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:46:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:46:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:46:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:46:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:46:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:46:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:46:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-18 18:46:58,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:58,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868286595] [2022-11-18 18:46:58,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868286595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:46:58,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:46:58,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:46:58,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963938419] [2022-11-18 18:46:58,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:46:58,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:46:58,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:58,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:46:58,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:46:59,004 INFO L87 Difference]: Start difference. First operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 18:47:01,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:06,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:10,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:12,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:14,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:15,040 INFO L93 Difference]: Finished difference Result 2052 states and 2981 transitions. [2022-11-18 18:47:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:47:15,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 133 [2022-11-18 18:47:15,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:47:15,100 INFO L225 Difference]: With dead ends: 2052 [2022-11-18 18:47:15,102 INFO L226 Difference]: Without dead ends: 1412 [2022-11-18 18:47:15,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:47:15,117 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 2116 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 1153 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:47:15,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 1965 Invalid, 2058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1153 Valid, 900 Invalid, 5 Unknown, 0 Unchecked, 15.5s Time] [2022-11-18 18:47:15,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-11-18 18:47:15,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1180. [2022-11-18 18:47:15,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 854 states have (on average 1.3302107728337236) internal successors, (1136), 873 states have internal predecessors, (1136), 250 states have call successors, (250), 75 states have call predecessors, (250), 75 states have return successors, (252), 243 states have call predecessors, (252), 248 states have call successors, (252) [2022-11-18 18:47:15,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1638 transitions. [2022-11-18 18:47:15,329 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1638 transitions. Word has length 133 [2022-11-18 18:47:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:47:15,331 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1638 transitions. [2022-11-18 18:47:15,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 18:47:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1638 transitions. [2022-11-18 18:47:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-18 18:47:15,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:47:15,336 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:47:15,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:47:15,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:47:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:15,338 INFO L85 PathProgramCache]: Analyzing trace with hash -388531533, now seen corresponding path program 1 times [2022-11-18 18:47:15,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:15,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423852014] [2022-11-18 18:47:15,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:15,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:47:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:47:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:47:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:47:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:47:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:47:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:47:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:47:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-18 18:47:16,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:16,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423852014] [2022-11-18 18:47:16,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423852014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:16,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:16,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:47:16,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760356411] [2022-11-18 18:47:16,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:16,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:47:16,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:16,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:47:16,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:47:16,291 INFO L87 Difference]: Start difference. First operand 1180 states and 1638 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 18:47:18,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:23,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:26,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:28,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:29,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:29,714 INFO L93 Difference]: Finished difference Result 2609 states and 3655 transitions. [2022-11-18 18:47:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:47:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 136 [2022-11-18 18:47:29,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:47:29,729 INFO L225 Difference]: With dead ends: 2609 [2022-11-18 18:47:29,730 INFO L226 Difference]: Without dead ends: 1453 [2022-11-18 18:47:29,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:47:29,743 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 1682 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 732 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:47:29,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 2250 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 862 Invalid, 4 Unknown, 0 Unchecked, 13.0s Time] [2022-11-18 18:47:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-11-18 18:47:29,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1206. [2022-11-18 18:47:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 874 states have (on average 1.3272311212814645) internal successors, (1160), 893 states have internal predecessors, (1160), 251 states have call successors, (251), 80 states have call predecessors, (251), 80 states have return successors, (253), 244 states have call predecessors, (253), 249 states have call successors, (253) [2022-11-18 18:47:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1664 transitions. [2022-11-18 18:47:29,925 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1664 transitions. Word has length 136 [2022-11-18 18:47:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:47:29,926 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1664 transitions. [2022-11-18 18:47:29,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 18:47:29,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1664 transitions. [2022-11-18 18:47:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-18 18:47:29,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:47:29,936 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:47:29,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:47:29,938 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:47:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:29,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1783786572, now seen corresponding path program 1 times [2022-11-18 18:47:29,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:29,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813770361] [2022-11-18 18:47:29,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:29,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:47:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:47:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:47:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:47:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:47:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:47:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:47:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:47:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-11-18 18:47:30,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:30,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813770361] [2022-11-18 18:47:30,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813770361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:30,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:30,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:47:30,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574361311] [2022-11-18 18:47:30,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:30,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:47:30,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:30,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:47:30,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:47:30,649 INFO L87 Difference]: Start difference. First operand 1206 states and 1664 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 18:47:33,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:38,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:40,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:43,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:45,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:48,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:50,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:52,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:54,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:47:55,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:55,669 INFO L93 Difference]: Finished difference Result 3996 states and 5624 transitions. [2022-11-18 18:47:55,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:47:55,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 144 [2022-11-18 18:47:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:47:55,690 INFO L225 Difference]: With dead ends: 3996 [2022-11-18 18:47:55,690 INFO L226 Difference]: Without dead ends: 2810 [2022-11-18 18:47:55,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:47:55,701 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 1812 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 828 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:47:55,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1905 Valid, 2243 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [828 Valid, 1130 Invalid, 9 Unknown, 0 Unchecked, 24.6s Time] [2022-11-18 18:47:55,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-11-18 18:47:55,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2325. [2022-11-18 18:47:55,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 1689 states have (on average 1.330373001776199) internal successors, (2247), 1722 states have internal predecessors, (2247), 483 states have call successors, (483), 152 states have call predecessors, (483), 152 states have return successors, (489), 472 states have call predecessors, (489), 481 states have call successors, (489) [2022-11-18 18:47:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 3219 transitions. [2022-11-18 18:47:55,867 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 3219 transitions. Word has length 144 [2022-11-18 18:47:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:47:55,869 INFO L495 AbstractCegarLoop]: Abstraction has 2325 states and 3219 transitions. [2022-11-18 18:47:55,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 18:47:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 3219 transitions. [2022-11-18 18:47:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-18 18:47:55,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:47:55,878 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:47:55,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:47:55,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:47:55,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:55,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1681406430, now seen corresponding path program 1 times [2022-11-18 18:47:55,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:55,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858468880] [2022-11-18 18:47:55,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:55,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:47:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:47:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:47:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:47:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:47:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:47:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:47:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:47:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:47:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:47:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-18 18:47:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 18:47:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-18 18:47:56,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:56,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858468880] [2022-11-18 18:47:56,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858468880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:56,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:56,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:47:56,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428803040] [2022-11-18 18:47:56,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:56,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:47:56,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:56,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:47:56,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:47:56,401 INFO L87 Difference]: Start difference. First operand 2325 states and 3219 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:48:00,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:02,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:04,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:08,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:10,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:12,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:13,136 INFO L93 Difference]: Finished difference Result 4821 states and 6715 transitions. [2022-11-18 18:48:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:48:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2022-11-18 18:48:13,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:13,158 INFO L225 Difference]: With dead ends: 4821 [2022-11-18 18:48:13,158 INFO L226 Difference]: Without dead ends: 2520 [2022-11-18 18:48:13,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:48:13,174 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1097 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 428 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:13,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1823 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 911 Invalid, 6 Unknown, 0 Unchecked, 16.3s Time] [2022-11-18 18:48:13,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-11-18 18:48:13,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 1993. [2022-11-18 18:48:13,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1448 states have (on average 1.3225138121546962) internal successors, (1915), 1473 states have internal predecessors, (1915), 403 states have call successors, (403), 142 states have call predecessors, (403), 141 states have return successors, (401), 393 states have call predecessors, (401), 401 states have call successors, (401) [2022-11-18 18:48:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2719 transitions. [2022-11-18 18:48:13,334 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2719 transitions. Word has length 150 [2022-11-18 18:48:13,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:13,335 INFO L495 AbstractCegarLoop]: Abstraction has 1993 states and 2719 transitions. [2022-11-18 18:48:13,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:48:13,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2719 transitions. [2022-11-18 18:48:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-18 18:48:13,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:13,341 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:48:13,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:48:13,342 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:13,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash 693090907, now seen corresponding path program 1 times [2022-11-18 18:48:13,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:13,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422088188] [2022-11-18 18:48:13,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:13,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:48:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:48:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:48:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:48:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:48:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:48:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:48:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:48:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-18 18:48:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:48:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:48:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-18 18:48:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-18 18:48:13,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:13,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422088188] [2022-11-18 18:48:13,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422088188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:13,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:13,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532163912] [2022-11-18 18:48:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:13,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:13,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:13,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:13,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:13,918 INFO L87 Difference]: Start difference. First operand 1993 states and 2719 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:48:18,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:20,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:24,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:26,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:27,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:27,895 INFO L93 Difference]: Finished difference Result 4585 states and 6341 transitions. [2022-11-18 18:48:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:48:27,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2022-11-18 18:48:27,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:27,915 INFO L225 Difference]: With dead ends: 4585 [2022-11-18 18:48:27,915 INFO L226 Difference]: Without dead ends: 2616 [2022-11-18 18:48:27,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:48:27,924 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 1376 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 817 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:27,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 2207 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 1159 Invalid, 4 Unknown, 0 Unchecked, 13.5s Time] [2022-11-18 18:48:27,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2022-11-18 18:48:28,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2068. [2022-11-18 18:48:28,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2068 states, 1500 states have (on average 1.3306666666666667) internal successors, (1996), 1525 states have internal predecessors, (1996), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-18 18:48:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2826 transitions. [2022-11-18 18:48:28,075 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2826 transitions. Word has length 175 [2022-11-18 18:48:28,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:28,076 INFO L495 AbstractCegarLoop]: Abstraction has 2068 states and 2826 transitions. [2022-11-18 18:48:28,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:48:28,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2826 transitions. [2022-11-18 18:48:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-18 18:48:28,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:28,083 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:48:28,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:48:28,084 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:28,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:28,085 INFO L85 PathProgramCache]: Analyzing trace with hash 474852391, now seen corresponding path program 1 times [2022-11-18 18:48:28,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:28,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507036332] [2022-11-18 18:48:28,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:28,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:48:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:48:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:48:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:48:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:48:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:48:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:48:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:48:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:48:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-18 18:48:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-18 18:48:28,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:28,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507036332] [2022-11-18 18:48:28,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507036332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:28,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:28,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:48:28,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079653504] [2022-11-18 18:48:28,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:28,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:48:28,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:48:28,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:48:28,818 INFO L87 Difference]: Start difference. First operand 2068 states and 2826 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-18 18:48:33,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:36,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:37,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:37,614 INFO L93 Difference]: Finished difference Result 4798 states and 6848 transitions. [2022-11-18 18:48:37,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:48:37,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 178 [2022-11-18 18:48:37,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:37,636 INFO L225 Difference]: With dead ends: 4798 [2022-11-18 18:48:37,636 INFO L226 Difference]: Without dead ends: 3111 [2022-11-18 18:48:37,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:48:37,644 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 792 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 327 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:37,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2429 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1137 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-11-18 18:48:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2022-11-18 18:48:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2072. [2022-11-18 18:48:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1504 states have (on average 1.3297872340425532) internal successors, (2000), 1529 states have internal predecessors, (2000), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-18 18:48:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2830 transitions. [2022-11-18 18:48:37,816 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2830 transitions. Word has length 178 [2022-11-18 18:48:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:37,816 INFO L495 AbstractCegarLoop]: Abstraction has 2072 states and 2830 transitions. [2022-11-18 18:48:37,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-18 18:48:37,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2830 transitions. [2022-11-18 18:48:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-18 18:48:37,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:37,823 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:48:37,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:48:37,823 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1205450467, now seen corresponding path program 1 times [2022-11-18 18:48:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:37,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420036428] [2022-11-18 18:48:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:48:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:48:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:48:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:48:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:48:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:48:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:48:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:48:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:48:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:48:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:38,469 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-18 18:48:38,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:38,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420036428] [2022-11-18 18:48:38,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420036428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:38,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:38,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:48:38,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783911856] [2022-11-18 18:48:38,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:38,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:48:38,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:38,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:48:38,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:48:38,472 INFO L87 Difference]: Start difference. First operand 2072 states and 2830 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-18 18:48:42,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:44,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:48,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:50,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:52,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:54,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:48:55,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:55,513 INFO L93 Difference]: Finished difference Result 4806 states and 6856 transitions. [2022-11-18 18:48:55,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:48:55,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 179 [2022-11-18 18:48:55,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:55,540 INFO L225 Difference]: With dead ends: 4806 [2022-11-18 18:48:55,541 INFO L226 Difference]: Without dead ends: 3115 [2022-11-18 18:48:55,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:48:55,549 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 826 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 441 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:55,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 2800 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 1230 Invalid, 6 Unknown, 0 Unchecked, 16.7s Time] [2022-11-18 18:48:55,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2022-11-18 18:48:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2072. [2022-11-18 18:48:55,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1504 states have (on average 1.3297872340425532) internal successors, (2000), 1529 states have internal predecessors, (2000), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-18 18:48:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2830 transitions. [2022-11-18 18:48:55,725 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2830 transitions. Word has length 179 [2022-11-18 18:48:55,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:55,726 INFO L495 AbstractCegarLoop]: Abstraction has 2072 states and 2830 transitions. [2022-11-18 18:48:55,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-18 18:48:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2830 transitions. [2022-11-18 18:48:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-18 18:48:55,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:55,732 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:48:55,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:48:55,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:55,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1228318910, now seen corresponding path program 1 times [2022-11-18 18:48:55,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:55,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960705636] [2022-11-18 18:48:55,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:56,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:48:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:48:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:48:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:48:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:48:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:48:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:48:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:48:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:48:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:48:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:48:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 18:48:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 18:48:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 18:48:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-18 18:48:57,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:57,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960705636] [2022-11-18 18:48:57,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960705636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:57,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:57,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:48:57,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660314356] [2022-11-18 18:48:57,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:57,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:48:57,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:57,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:48:57,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:48:57,266 INFO L87 Difference]: Start difference. First operand 2072 states and 2830 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:49:01,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:03,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:05,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:09,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:11,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:13,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:15,092 INFO L93 Difference]: Finished difference Result 4310 states and 5980 transitions. [2022-11-18 18:49:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:49:15,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 185 [2022-11-18 18:49:15,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:15,114 INFO L225 Difference]: With dead ends: 4310 [2022-11-18 18:49:15,114 INFO L226 Difference]: Without dead ends: 2619 [2022-11-18 18:49:15,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:49:15,124 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 508 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 329 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:15,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 2543 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1328 Invalid, 6 Unknown, 0 Unchecked, 17.5s Time] [2022-11-18 18:49:15,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2022-11-18 18:49:15,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2076. [2022-11-18 18:49:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 1508 states have (on average 1.3289124668435013) internal successors, (2004), 1533 states have internal predecessors, (2004), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-18 18:49:15,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2834 transitions. [2022-11-18 18:49:15,341 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2834 transitions. Word has length 185 [2022-11-18 18:49:15,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:15,342 INFO L495 AbstractCegarLoop]: Abstraction has 2076 states and 2834 transitions. [2022-11-18 18:49:15,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:49:15,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2834 transitions. [2022-11-18 18:49:15,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-18 18:49:15,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:15,349 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:49:15,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:49:15,350 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:49:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash 990566495, now seen corresponding path program 1 times [2022-11-18 18:49:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:15,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12278686] [2022-11-18 18:49:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:49:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:49:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:49:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:49:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:49:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:49:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:49:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:49:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:49:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 18:49:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-18 18:49:16,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:16,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12278686] [2022-11-18 18:49:16,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12278686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:16,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:16,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:49:16,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643311484] [2022-11-18 18:49:16,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:16,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:49:16,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:16,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:49:16,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:49:16,426 INFO L87 Difference]: Start difference. First operand 2076 states and 2834 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-18 18:49:21,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:26,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:30,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:31,427 INFO L93 Difference]: Finished difference Result 5606 states and 8238 transitions. [2022-11-18 18:49:31,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:49:31,428 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 185 [2022-11-18 18:49:31,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:31,457 INFO L225 Difference]: With dead ends: 5606 [2022-11-18 18:49:31,457 INFO L226 Difference]: Without dead ends: 3911 [2022-11-18 18:49:31,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:49:31,468 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 1533 mSDsluCounter, 4046 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 627 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 4816 SdHoareTripleChecker+Invalid, 3172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:31,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 4816 Invalid, 3172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [627 Valid, 2542 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2022-11-18 18:49:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2022-11-18 18:49:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 2084. [2022-11-18 18:49:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2084 states, 1514 states have (on average 1.3276089828269484) internal successors, (2010), 1539 states have internal predecessors, (2010), 416 states have call successors, (416), 152 states have call predecessors, (416), 153 states have return successors, (418), 412 states have call predecessors, (418), 414 states have call successors, (418) [2022-11-18 18:49:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2844 transitions. [2022-11-18 18:49:31,777 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2844 transitions. Word has length 185 [2022-11-18 18:49:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:31,778 INFO L495 AbstractCegarLoop]: Abstraction has 2084 states and 2844 transitions. [2022-11-18 18:49:31,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-18 18:49:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2844 transitions. [2022-11-18 18:49:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-18 18:49:31,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:31,786 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:31,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:49:31,787 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:49:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:31,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1789257482, now seen corresponding path program 1 times [2022-11-18 18:49:31,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:31,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239289538] [2022-11-18 18:49:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:31,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:49:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:49:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:49:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:49:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:49:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:49:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:49:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:49:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:49:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-18 18:49:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-18 18:49:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-18 18:49:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-18 18:49:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:33,771 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-18 18:49:33,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:33,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239289538] [2022-11-18 18:49:33,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239289538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:33,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:33,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 18:49:33,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030197957] [2022-11-18 18:49:33,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:33,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:49:33,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:33,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:49:33,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:49:33,774 INFO L87 Difference]: Start difference. First operand 2084 states and 2844 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:49:39,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:41,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:43,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:45,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:50,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:52,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:54,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:56,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:58,706 INFO L93 Difference]: Finished difference Result 4334 states and 6008 transitions. [2022-11-18 18:49:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:49:58,706 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 197 [2022-11-18 18:49:58,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:58,722 INFO L225 Difference]: With dead ends: 4334 [2022-11-18 18:49:58,722 INFO L226 Difference]: Without dead ends: 2631 [2022-11-18 18:49:58,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:49:58,730 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 459 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 323 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:58,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 4895 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 2503 Invalid, 8 Unknown, 0 Unchecked, 24.2s Time] [2022-11-18 18:49:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2022-11-18 18:49:58,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2096. [2022-11-18 18:49:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 1522 states have (on average 1.325886990801577) internal successors, (2018), 1547 states have internal predecessors, (2018), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 416 states have call predecessors, (434), 414 states have call successors, (434) [2022-11-18 18:49:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2868 transitions. [2022-11-18 18:49:58,970 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2868 transitions. Word has length 197 [2022-11-18 18:49:58,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:58,971 INFO L495 AbstractCegarLoop]: Abstraction has 2096 states and 2868 transitions. [2022-11-18 18:49:58,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:49:58,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2868 transitions. [2022-11-18 18:49:58,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-18 18:49:58,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:58,980 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:58,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:49:58,981 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:49:58,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1452629847, now seen corresponding path program 1 times [2022-11-18 18:49:58,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:58,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778217476] [2022-11-18 18:49:58,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:59,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:49:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:49:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:49:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:50:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:50:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:50:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:50:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:50:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:50:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:50:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:50:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 18:50:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 18:50:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-18 18:50:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-18 18:50:00,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:00,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778217476] [2022-11-18 18:50:00,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778217476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:00,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:00,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:50:00,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052256156] [2022-11-18 18:50:00,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:00,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:50:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:50:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:50:00,638 INFO L87 Difference]: Start difference. First operand 2096 states and 2868 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:50:05,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:07,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:12,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:14,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:17,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:19,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:21,185 INFO L93 Difference]: Finished difference Result 4731 states and 6693 transitions. [2022-11-18 18:50:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:50:21,185 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 196 [2022-11-18 18:50:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:21,204 INFO L225 Difference]: With dead ends: 4731 [2022-11-18 18:50:21,205 INFO L226 Difference]: Without dead ends: 3016 [2022-11-18 18:50:21,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:50:21,214 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 601 mSDsluCounter, 5127 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 316 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 5903 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:21,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 5903 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 2346 Invalid, 6 Unknown, 0 Unchecked, 19.9s Time] [2022-11-18 18:50:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-11-18 18:50:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2100. [2022-11-18 18:50:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1526 states have (on average 1.3250327653997378) internal successors, (2022), 1549 states have internal predecessors, (2022), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 418 states have call predecessors, (434), 414 states have call successors, (434) [2022-11-18 18:50:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2872 transitions. [2022-11-18 18:50:21,542 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2872 transitions. Word has length 196 [2022-11-18 18:50:21,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:21,544 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2872 transitions. [2022-11-18 18:50:21,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:50:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2872 transitions. [2022-11-18 18:50:21,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-18 18:50:21,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:21,552 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:50:21,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:50:21,553 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:21,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:21,554 INFO L85 PathProgramCache]: Analyzing trace with hash -859840518, now seen corresponding path program 1 times [2022-11-18 18:50:21,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:21,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603001123] [2022-11-18 18:50:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:21,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:50:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:50:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:50:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:50:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:50:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:50:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 18:50:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 18:50:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-18 18:50:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:50:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-18 18:50:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-18 18:50:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-18 18:50:22,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603001123] [2022-11-18 18:50:22,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603001123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:50:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669280940] [2022-11-18 18:50:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:22,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:22,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:50:22,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:50:22,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:50:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:23,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 18:50:23,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:50:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-18 18:50:24,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:50:24,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669280940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:24,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:50:24,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2022-11-18 18:50:24,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118832264] [2022-11-18 18:50:24,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:24,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:24,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:24,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:24,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:50:24,083 INFO L87 Difference]: Start difference. First operand 2100 states and 2872 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:50:24,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:24,523 INFO L93 Difference]: Finished difference Result 4192 states and 5771 transitions. [2022-11-18 18:50:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:24,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 203 [2022-11-18 18:50:24,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:24,548 INFO L225 Difference]: With dead ends: 4192 [2022-11-18 18:50:24,548 INFO L226 Difference]: Without dead ends: 2105 [2022-11-18 18:50:24,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:50:24,558 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 6 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:24,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3529 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:50:24,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2022-11-18 18:50:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2105. [2022-11-18 18:50:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2105 states, 1531 states have (on average 1.3239712606139777) internal successors, (2027), 1554 states have internal predecessors, (2027), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 418 states have call predecessors, (434), 414 states have call successors, (434) [2022-11-18 18:50:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2877 transitions. [2022-11-18 18:50:24,788 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2877 transitions. Word has length 203 [2022-11-18 18:50:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:24,789 INFO L495 AbstractCegarLoop]: Abstraction has 2105 states and 2877 transitions. [2022-11-18 18:50:24,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:50:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2877 transitions. [2022-11-18 18:50:24,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-18 18:50:24,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:24,796 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:50:24,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 18:50:25,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:25,006 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:25,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1170975090, now seen corresponding path program 1 times [2022-11-18 18:50:25,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:25,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697536800] [2022-11-18 18:50:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:25,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:50:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:50:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:50:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:50:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:50:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:50:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 18:50:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 18:50:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 18:50:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-18 18:50:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-18 18:50:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-18 18:50:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-18 18:50:26,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:26,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697536800] [2022-11-18 18:50:26,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697536800] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:50:26,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660202173] [2022-11-18 18:50:26,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:26,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:26,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:50:26,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:50:26,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:50:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:27,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 18:50:27,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:50:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-18 18:50:27,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:50:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-18 18:50:28,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660202173] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:50:28,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:50:28,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 18 [2022-11-18 18:50:28,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581697330] [2022-11-18 18:50:28,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:50:28,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:50:28,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:28,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:50:28,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:50:28,951 INFO L87 Difference]: Start difference. First operand 2105 states and 2877 transitions. Second operand has 18 states, 16 states have (on average 8.5625) internal successors, (137), 13 states have internal predecessors, (137), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:50:35,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:37,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:42,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:44,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:47,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:47,817 INFO L93 Difference]: Finished difference Result 4709 states and 6538 transitions. [2022-11-18 18:50:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:50:47,819 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 13 states have internal predecessors, (137), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 205 [2022-11-18 18:50:47,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:47,833 INFO L225 Difference]: With dead ends: 4709 [2022-11-18 18:50:47,833 INFO L226 Difference]: Without dead ends: 2617 [2022-11-18 18:50:47,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 454 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2022-11-18 18:50:47,843 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 721 mSDsluCounter, 5075 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 609 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:47,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 5650 Invalid, 3327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [609 Valid, 2714 Invalid, 4 Unknown, 0 Unchecked, 17.8s Time] [2022-11-18 18:50:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2022-11-18 18:50:48,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2115. [2022-11-18 18:50:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 1539 states have (on average 1.322287199480182) internal successors, (2035), 1562 states have internal predecessors, (2035), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-18 18:50:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2887 transitions. [2022-11-18 18:50:48,094 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2887 transitions. Word has length 205 [2022-11-18 18:50:48,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:48,094 INFO L495 AbstractCegarLoop]: Abstraction has 2115 states and 2887 transitions. [2022-11-18 18:50:48,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 13 states have internal predecessors, (137), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:50:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2887 transitions. [2022-11-18 18:50:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-18 18:50:48,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:48,103 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-11-18 18:50:48,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:50:48,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:48,315 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:48,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1871077894, now seen corresponding path program 2 times [2022-11-18 18:50:48,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:48,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626268895] [2022-11-18 18:50:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:48,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:50:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:50:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:50:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:50:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:50:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:50:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:50:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 18:50:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:50:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:50:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 18:50:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 18:50:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:50,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 18:50:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-11-18 18:50:50,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:50,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626268895] [2022-11-18 18:50:50,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626268895] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:50:50,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340647119] [2022-11-18 18:50:50,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:50:50,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:50,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:50:50,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:50:50,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:50:50,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:50:50,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:50:50,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 18:50:50,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:50:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-18 18:50:51,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:50:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-11-18 18:50:52,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340647119] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:50:52,127 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:50:52,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2022-11-18 18:50:52,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661547691] [2022-11-18 18:50:52,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:50:52,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 18:50:52,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:52,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 18:50:52,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:50:52,130 INFO L87 Difference]: Start difference. First operand 2115 states and 2887 transitions. Second operand has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 16 states have internal predecessors, (140), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:50:58,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:02,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:04,967 INFO L93 Difference]: Finished difference Result 4722 states and 6550 transitions. [2022-11-18 18:51:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:51:04,968 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 16 states have internal predecessors, (140), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 207 [2022-11-18 18:51:04,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:04,977 INFO L225 Difference]: With dead ends: 4722 [2022-11-18 18:51:04,977 INFO L226 Difference]: Without dead ends: 2622 [2022-11-18 18:51:04,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 457 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=171, Invalid=821, Unknown=0, NotChecked=0, Total=992 [2022-11-18 18:51:04,985 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 516 mSDsluCounter, 4608 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 342 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 5207 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:04,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 5207 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2393 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-11-18 18:51:04,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2022-11-18 18:51:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2120. [2022-11-18 18:51:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 1544 states have (on average 1.3212435233160622) internal successors, (2040), 1567 states have internal predecessors, (2040), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-18 18:51:05,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2892 transitions. [2022-11-18 18:51:05,198 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2892 transitions. Word has length 207 [2022-11-18 18:51:05,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:05,198 INFO L495 AbstractCegarLoop]: Abstraction has 2120 states and 2892 transitions. [2022-11-18 18:51:05,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 16 states have internal predecessors, (140), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:51:05,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2892 transitions. [2022-11-18 18:51:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-18 18:51:05,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:05,205 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:51:05,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:05,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:05,416 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:05,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:05,416 INFO L85 PathProgramCache]: Analyzing trace with hash 758905009, now seen corresponding path program 1 times [2022-11-18 18:51:05,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:05,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850999213] [2022-11-18 18:51:05,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:05,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:51:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:51:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:51:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:51:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:51:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:51:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 18:51:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 18:51:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-18 18:51:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-18 18:51:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-18 18:51:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 18:51:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-18 18:51:07,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:07,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850999213] [2022-11-18 18:51:07,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850999213] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:51:07,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429712861] [2022-11-18 18:51:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:07,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:07,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:07,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:07,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:51:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:07,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 2323 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-18 18:51:07,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-18 18:51:08,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:51:09,376 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-18 18:51:09,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429712861] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:51:09,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:51:09,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 24 [2022-11-18 18:51:09,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594665792] [2022-11-18 18:51:09,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:51:09,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 18:51:09,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:09,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 18:51:09,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:51:09,380 INFO L87 Difference]: Start difference. First operand 2120 states and 2892 transitions. Second operand has 24 states, 22 states have (on average 6.454545454545454) internal successors, (142), 19 states have internal predecessors, (142), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:51:16,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:18,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:23,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:25,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:28,091 INFO L93 Difference]: Finished difference Result 4732 states and 6560 transitions. [2022-11-18 18:51:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 18:51:28,092 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 6.454545454545454) internal successors, (142), 19 states have internal predecessors, (142), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 208 [2022-11-18 18:51:28,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:28,104 INFO L225 Difference]: With dead ends: 4732 [2022-11-18 18:51:28,105 INFO L226 Difference]: Without dead ends: 2627 [2022-11-18 18:51:28,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 457 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 18:51:28,113 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 724 mSDsluCounter, 5832 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 605 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 6434 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:28,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 6434 Invalid, 3598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [605 Valid, 2989 Invalid, 4 Unknown, 0 Unchecked, 17.7s Time] [2022-11-18 18:51:28,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-11-18 18:51:28,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2125. [2022-11-18 18:51:28,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 1549 states have (on average 1.3202065848934796) internal successors, (2045), 1572 states have internal predecessors, (2045), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-18 18:51:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2897 transitions. [2022-11-18 18:51:28,336 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2897 transitions. Word has length 208 [2022-11-18 18:51:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:28,337 INFO L495 AbstractCegarLoop]: Abstraction has 2125 states and 2897 transitions. [2022-11-18 18:51:28,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 6.454545454545454) internal successors, (142), 19 states have internal predecessors, (142), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:51:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2897 transitions. [2022-11-18 18:51:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-18 18:51:28,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:28,343 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:51:28,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:28,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 18:51:28,559 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1464034055, now seen corresponding path program 1 times [2022-11-18 18:51:28,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:28,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968568321] [2022-11-18 18:51:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:28,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:51:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:51:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:51:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:51:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:51:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:51:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:29,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 18:51:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 18:51:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:51:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-18 18:51:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-18 18:51:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-18 18:51:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:51:30,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:30,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968568321] [2022-11-18 18:51:30,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968568321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:51:30,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763816257] [2022-11-18 18:51:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:30,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:30,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:30,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:30,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:51:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:31,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 18:51:31,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 57 proven. 10 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-18 18:51:32,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:51:34,228 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:51:34,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763816257] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:51:34,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:51:34,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 26 [2022-11-18 18:51:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514613085] [2022-11-18 18:51:34,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:51:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 18:51:34,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:34,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 18:51:34,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:51:34,234 INFO L87 Difference]: Start difference. First operand 2125 states and 2897 transitions. Second operand has 26 states, 24 states have (on average 6.0) internal successors, (144), 21 states have internal predecessors, (144), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:51:45,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:48,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:55,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:55,779 INFO L93 Difference]: Finished difference Result 4790 states and 6625 transitions. [2022-11-18 18:51:55,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 18:51:55,780 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.0) internal successors, (144), 21 states have internal predecessors, (144), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 210 [2022-11-18 18:51:55,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:55,794 INFO L225 Difference]: With dead ends: 4790 [2022-11-18 18:51:55,794 INFO L226 Difference]: Without dead ends: 2685 [2022-11-18 18:51:55,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 458 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=374, Invalid=2278, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 18:51:55,809 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 627 mSDsluCounter, 6730 mSDsCounter, 0 mSdLazyCounter, 3585 mSolverCounterSat, 480 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 7313 SdHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 3585 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:55,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 7313 Invalid, 4067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [480 Valid, 3585 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2022-11-18 18:51:55,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-11-18 18:51:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2183. [2022-11-18 18:51:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1601 states have (on average 1.3141786383510305) internal successors, (2104), 1624 states have internal predecessors, (2104), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-18 18:51:56,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2956 transitions. [2022-11-18 18:51:56,134 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2956 transitions. Word has length 210 [2022-11-18 18:51:56,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:56,134 INFO L495 AbstractCegarLoop]: Abstraction has 2183 states and 2956 transitions. [2022-11-18 18:51:56,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.0) internal successors, (144), 21 states have internal predecessors, (144), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:51:56,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2956 transitions. [2022-11-18 18:51:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-18 18:51:56,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:56,141 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:51:56,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:56,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 18:51:56,354 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:56,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:56,354 INFO L85 PathProgramCache]: Analyzing trace with hash -2127416970, now seen corresponding path program 3 times [2022-11-18 18:51:56,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:56,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183349168] [2022-11-18 18:51:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:56,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:51:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:51:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:51:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:51:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:51:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:51:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:51:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:51:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 18:51:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:51:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-18 18:51:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 18:51:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-18 18:51:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:51:58,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:58,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183349168] [2022-11-18 18:51:58,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183349168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:51:58,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837530134] [2022-11-18 18:51:58,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:51:58,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:58,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:58,365 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:58,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:52:05,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-18 18:52:05,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:52:05,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 2382 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-18 18:52:05,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:52:06,895 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 62 proven. 15 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-18 18:52:06,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:52:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:52:09,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837530134] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:52:09,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:52:09,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 27 [2022-11-18 18:52:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829442256] [2022-11-18 18:52:09,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:52:09,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-18 18:52:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:52:09,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-18 18:52:09,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-11-18 18:52:09,303 INFO L87 Difference]: Start difference. First operand 2183 states and 2956 transitions. Second operand has 27 states, 25 states have (on average 5.84) internal successors, (146), 22 states have internal predecessors, (146), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:52:24,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:26,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:29,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:31,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:52:40,838 INFO L93 Difference]: Finished difference Result 4870 states and 6699 transitions. [2022-11-18 18:52:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 18:52:40,838 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.84) internal successors, (146), 22 states have internal predecessors, (146), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 212 [2022-11-18 18:52:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:52:40,849 INFO L225 Difference]: With dead ends: 4870 [2022-11-18 18:52:40,849 INFO L226 Difference]: Without dead ends: 2695 [2022-11-18 18:52:40,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 462 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=312, Invalid=2340, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 18:52:40,858 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 631 mSDsluCounter, 9083 mSDsCounter, 0 mSdLazyCounter, 4685 mSolverCounterSat, 473 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 9682 SdHoareTripleChecker+Invalid, 5162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 4685 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:52:40,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 9682 Invalid, 5162 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [473 Valid, 4685 Invalid, 4 Unknown, 0 Unchecked, 27.7s Time] [2022-11-18 18:52:40,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-11-18 18:52:41,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2193. [2022-11-18 18:52:41,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1611 states have (on average 1.3122284295468654) internal successors, (2114), 1634 states have internal predecessors, (2114), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-18 18:52:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 2966 transitions. [2022-11-18 18:52:41,207 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 2966 transitions. Word has length 212 [2022-11-18 18:52:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:52:41,207 INFO L495 AbstractCegarLoop]: Abstraction has 2193 states and 2966 transitions. [2022-11-18 18:52:41,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.84) internal successors, (146), 22 states have internal predecessors, (146), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:52:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 2966 transitions. [2022-11-18 18:52:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-18 18:52:41,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:52:41,214 INFO L195 NwaCegarLoop]: trace histogram [10, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:52:41,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:52:41,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 18:52:41,431 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:52:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:52:41,431 INFO L85 PathProgramCache]: Analyzing trace with hash 254591879, now seen corresponding path program 2 times [2022-11-18 18:52:41,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:52:41,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060817885] [2022-11-18 18:52:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:52:41,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:52:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:52:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:52:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:52:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:52:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:52:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:52:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:52:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:52:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 18:52:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 18:52:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:52:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:52:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:52:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-18 18:52:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 18:52:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-18 18:52:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:52:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:52:43,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:52:43,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060817885] [2022-11-18 18:52:43,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060817885] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:52:43,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032926228] [2022-11-18 18:52:43,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:52:43,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:52:43,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:52:43,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:52:43,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:52:45,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:52:45,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:52:45,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-18 18:52:45,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:52:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-18 18:52:46,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:52:48,968 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:52:48,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032926228] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:52:48,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:52:48,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12] total 29 [2022-11-18 18:52:48,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116045419] [2022-11-18 18:52:48,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:52:48,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 18:52:48,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:52:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 18:52:48,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-11-18 18:52:48,971 INFO L87 Difference]: Start difference. First operand 2193 states and 2966 transitions. Second operand has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:53:04,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:08,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:53:16,579 INFO L93 Difference]: Finished difference Result 4890 states and 6719 transitions. [2022-11-18 18:53:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 18:53:16,579 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 212 [2022-11-18 18:53:16,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:53:16,591 INFO L225 Difference]: With dead ends: 4890 [2022-11-18 18:53:16,591 INFO L226 Difference]: Without dead ends: 2705 [2022-11-18 18:53:16,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 461 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=335, Invalid=2745, Unknown=0, NotChecked=0, Total=3080 [2022-11-18 18:53:16,600 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 797 mSDsluCounter, 8205 mSDsCounter, 0 mSdLazyCounter, 4365 mSolverCounterSat, 629 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 8778 SdHoareTripleChecker+Invalid, 4996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 4365 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:53:16,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 8778 Invalid, 4996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [629 Valid, 4365 Invalid, 2 Unknown, 0 Unchecked, 22.6s Time] [2022-11-18 18:53:16,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-11-18 18:53:16,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2203. [2022-11-18 18:53:16,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 1621 states have (on average 1.310302282541641) internal successors, (2124), 1644 states have internal predecessors, (2124), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-18 18:53:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2976 transitions. [2022-11-18 18:53:16,886 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2976 transitions. Word has length 212 [2022-11-18 18:53:16,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:53:16,887 INFO L495 AbstractCegarLoop]: Abstraction has 2203 states and 2976 transitions. [2022-11-18 18:53:16,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:53:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2976 transitions. [2022-11-18 18:53:16,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-18 18:53:16,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:53:16,893 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:53:16,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:53:17,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 18:53:17,105 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:53:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:53:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash 510160813, now seen corresponding path program 2 times [2022-11-18 18:53:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:53:17,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309547030] [2022-11-18 18:53:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:53:17,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:53:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:53:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:53:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:53:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:53:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:53:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:53:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:53:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:53:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 18:53:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:53:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:53:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:18,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:53:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 18:53:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:18,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:53:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:53:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:53:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:19,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:53:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:19,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-18 18:53:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-18 18:53:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 18:53:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:53:19,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:53:19,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309547030] [2022-11-18 18:53:19,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309547030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:53:19,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701682219] [2022-11-18 18:53:19,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:53:19,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:53:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:53:19,166 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:53:19,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 18:53:20,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:53:20,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:53:20,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2398 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-18 18:53:20,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:53:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 72 proven. 28 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-18 18:53:21,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:53:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 18:53:24,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701682219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:53:24,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:53:24,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 32 [2022-11-18 18:53:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311064084] [2022-11-18 18:53:24,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:53:24,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 18:53:24,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:53:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 18:53:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2022-11-18 18:53:24,647 INFO L87 Difference]: Start difference. First operand 2203 states and 2976 transitions. Second operand has 32 states, 30 states have (on average 5.0) internal successors, (150), 27 states have internal predecessors, (150), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:53:40,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:43,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:51,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:53:51,502 INFO L93 Difference]: Finished difference Result 4910 states and 6739 transitions. [2022-11-18 18:53:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-18 18:53:51,503 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 5.0) internal successors, (150), 27 states have internal predecessors, (150), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 213 [2022-11-18 18:53:51,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:53:51,512 INFO L225 Difference]: With dead ends: 4910 [2022-11-18 18:53:51,512 INFO L226 Difference]: Without dead ends: 2715 [2022-11-18 18:53:51,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 461 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=368, Invalid=3292, Unknown=0, NotChecked=0, Total=3660 [2022-11-18 18:53:51,519 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 860 mSDsluCounter, 9097 mSDsCounter, 0 mSdLazyCounter, 4770 mSolverCounterSat, 640 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 9682 SdHoareTripleChecker+Invalid, 5412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 4770 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:53:51,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 9682 Invalid, 5412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [640 Valid, 4770 Invalid, 2 Unknown, 0 Unchecked, 21.8s Time] [2022-11-18 18:53:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-11-18 18:53:51,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2213. [2022-11-18 18:53:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1631 states have (on average 1.3083997547516861) internal successors, (2134), 1654 states have internal predecessors, (2134), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-18 18:53:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2986 transitions. [2022-11-18 18:53:51,811 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2986 transitions. Word has length 213 [2022-11-18 18:53:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:53:51,812 INFO L495 AbstractCegarLoop]: Abstraction has 2213 states and 2986 transitions. [2022-11-18 18:53:51,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 5.0) internal successors, (150), 27 states have internal predecessors, (150), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-18 18:53:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2986 transitions. [2022-11-18 18:53:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-18 18:53:51,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:53:51,817 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:53:51,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:53:52,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:53:52,031 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:53:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:53:52,032 INFO L85 PathProgramCache]: Analyzing trace with hash 597662458, now seen corresponding path program 4 times [2022-11-18 18:53:52,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:53:52,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369125790] [2022-11-18 18:53:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:53:52,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:53:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:53:52,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:53:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:53:53,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:53:53,404 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:53:53,405 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:53:53,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:53:53,411 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:53:53,417 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:53:53,471 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-18 18:53:53,472 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-18 18:53:53,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:53:53 BoogieIcfgContainer [2022-11-18 18:53:53,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:53:53,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:53:53,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:53:53,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:53:53,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:46:57" (3/4) ... [2022-11-18 18:53:53,634 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:53:53,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:53:53,635 INFO L158 Benchmark]: Toolchain (without parser) took 435988.19ms. Allocated memory was 125.8MB in the beginning and 742.4MB in the end (delta: 616.6MB). Free memory was 91.2MB in the beginning and 416.5MB in the end (delta: -325.3MB). Peak memory consumption was 291.1MB. Max. memory is 16.1GB. [2022-11-18 18:53:53,635 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:53:53,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2228.91ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.1MB in the beginning and 65.2MB in the end (delta: 25.8MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2022-11-18 18:53:53,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 301.45ms. Allocated memory is still 151.0MB. Free memory was 65.2MB in the beginning and 83.7MB in the end (delta: -18.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-11-18 18:53:53,636 INFO L158 Benchmark]: Boogie Preprocessor took 318.49ms. Allocated memory is still 151.0MB. Free memory was 83.7MB in the beginning and 62.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-18 18:53:53,636 INFO L158 Benchmark]: RCFGBuilder took 16676.76ms. Allocated memory was 151.0MB in the beginning and 583.0MB in the end (delta: 432.0MB). Free memory was 62.3MB in the beginning and 227.7MB in the end (delta: -165.4MB). Peak memory consumption was 334.7MB. Max. memory is 16.1GB. [2022-11-18 18:53:53,637 INFO L158 Benchmark]: TraceAbstraction took 416447.54ms. Allocated memory was 583.0MB in the beginning and 742.4MB in the end (delta: 159.4MB). Free memory was 226.7MB in the beginning and 416.5MB in the end (delta: -189.9MB). Peak memory consumption was 177.1MB. Max. memory is 16.1GB. [2022-11-18 18:53:53,637 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 742.4MB. Free memory is still 416.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:53:53,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2228.91ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.1MB in the beginning and 65.2MB in the end (delta: 25.8MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 301.45ms. Allocated memory is still 151.0MB. Free memory was 65.2MB in the beginning and 83.7MB in the end (delta: -18.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 318.49ms. Allocated memory is still 151.0MB. Free memory was 83.7MB in the beginning and 62.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * RCFGBuilder took 16676.76ms. Allocated memory was 151.0MB in the beginning and 583.0MB in the end (delta: 432.0MB). Free memory was 62.3MB in the beginning and 227.7MB in the end (delta: -165.4MB). Peak memory consumption was 334.7MB. Max. memory is 16.1GB. * TraceAbstraction took 416447.54ms. Allocated memory was 583.0MB in the beginning and 742.4MB in the end (delta: 159.4MB). Free memory was 226.7MB in the beginning and 416.5MB in the end (delta: -189.9MB). Peak memory consumption was 177.1MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 742.4MB. Free memory is still 416.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7526]: 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 6952, overapproximation of shiftRight at line 6045, overapproximation of bitwiseAnd at line 6045. Possible FailurePath: [L6262] int LDV_IN_INTERRUPT = 1; [L6945-L6946] static struct atmdev_ops atmtcp_c_dev_ops = {0, 0, & atmtcp_c_close, 0, 0, 0, 0, & atmtcp_c_send, 0, 0, 0, 0, 0, 0}; [L6947-L7055] static struct atm_dev atmtcp_control_dev = {(struct atmdev_ops const *)(& atmtcp_c_dev_ops), 0, "atmtcp", 999, 0, 0, 0UL, {0, 0}, {0, 0}, {(unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, {(signed char)0, (signed char)0}, {{{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}}, (char)0, 0, {0}, {{{{{0}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "atmtcp_control_dev.lock", 0, 0UL}}}}, 0, 0, {0, 0, {0, {0, 0}, 0, 0, 0, 0, {{0}}, {{{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, 0, 0, {{0}, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, 0, 0, {0, {0, 0}, 0, 0, 0UL}}, 0, 0, 0, 0, {{0}, (unsigned char)0, (unsigned char)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0U, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}}, 0, (_Bool)0, (_Bool)0, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0UL, {{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0, {0}, {0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0, 0, 0, 0, 0UL, 0UL, 0UL, 0UL, 0, 0, 0}, 0, 0, 0, 0, 0ULL, 0UL, 0, {0, 0}, 0, 0, {0, 0}, 0, 0, 0U, 0U, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0, {0, 0}, {{0}}}, 0, 0, 0, 0, (_Bool)0, (_Bool)0}, {0, 0}}; [L7228] int ldv_retval_0 ; [L7229] int ldv_retval_1 ; [L6265] int ref_cnt ; [L7565] int ldv_module_refcounter = 1; [L6942-L6944] static struct atmdev_ops atmtcp_v_dev_ops = {& atmtcp_v_dev_close, & atmtcp_v_open, & atmtcp_v_close, & atmtcp_v_ioctl, 0, 0, 0, & atmtcp_v_send, 0, 0, 0, 0, & atmtcp_v_proc, & __this_module}; [L6263] int ldv_state_variable_2 ; [L6261] int ldv_state_variable_3 ; [L6269] int ldv_state_variable_0 ; [L6268] int ldv_state_variable_1 ; [L6264] struct atm_vcc *atmtcp_c_dev_ops_group0 ; [L6267] struct atm_dev *atmtcp_v_dev_ops_group0 ; [L6266] struct atm_vcc *atmtcp_v_dev_ops_group1 ; [L7212] static struct atm_ioctl atmtcp_ioctl_ops = {& __this_module, & atmtcp_ioctl, {0, 0}}; VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7255] unsigned long ldvarg1 ; [L7256] struct socket *ldvarg0 ; [L7257] void *tmp ; [L7258] unsigned int ldvarg2 ; [L7259] loff_t *ldvarg7 ; [L7260] void *tmp___0 ; [L7261] void *ldvarg4 ; [L7262] void *tmp___1 ; [L7263] struct sk_buff *ldvarg3 ; [L7264] void *tmp___2 ; [L7265] unsigned int ldvarg5 ; [L7266] char *ldvarg6 ; [L7267] void *tmp___3 ; [L7268] struct sk_buff *ldvarg8 ; [L7269] void *tmp___4 ; [L7270] int tmp___5 ; [L7271] int tmp___6 ; [L7272] int tmp___7 ; [L7273] int tmp___8 ; [L7274] int tmp___9 ; VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={18446744073709551621:0}, ldvarg5={18446744073709551620:0}, ref_cnt=0] [L7276] CALL, EXPR ldv_init_zalloc(48UL) VAL [\old(size)=48, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=48, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=48] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=48, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=48, tmp={-18446744073709551617:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=48, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=48, tmp={-18446744073709551617:0}] [L6221] return (p); VAL [\old(size)=48, \result={-18446744073709551617:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=48, tmp={-18446744073709551617:0}] [L7276] RET, EXPR ldv_init_zalloc(48UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(48UL)={-18446744073709551617:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={18446744073709551621:0}, ldvarg5={18446744073709551620:0}, ref_cnt=0] [L7276] tmp = ldv_init_zalloc(48UL) [L7277] ldvarg0 = (struct socket *)tmp VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg5={18446744073709551620:0}, ref_cnt=0, tmp={-18446744073709551617:0}] [L7278] CALL, EXPR ldv_init_zalloc(8UL) VAL [\old(size)=8, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=8, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654847:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=8] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=8, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654847:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654847:0}, ref_cnt=0, size=8, tmp={-55340232221128654847:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=8, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654847:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654847:0}, ref_cnt=0, size=8, tmp={-55340232221128654847:0}] [L6221] return (p); VAL [\old(size)=8, \result={-55340232221128654847:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654847:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654847:0}, ref_cnt=0, size=8, tmp={-55340232221128654847:0}] [L7278] RET, EXPR ldv_init_zalloc(8UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(8UL)={-55340232221128654847:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg5={18446744073709551620:0}, ref_cnt=0, tmp={-18446744073709551617:0}] [L7278] tmp___0 = ldv_init_zalloc(8UL) [L7279] ldvarg7 = (loff_t *)tmp___0 VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg5={18446744073709551620:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}] [L7280] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654849:0}, ref_cnt=0, size=1, tmp={-55340232221128654849:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654849:0}, ref_cnt=0, size=1, tmp={-55340232221128654849:0}] [L6221] return (p); VAL [\old(size)=1, \result={-55340232221128654849:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654849:0}, ref_cnt=0, size=1, tmp={-55340232221128654849:0}] [L7280] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={-55340232221128654849:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg5={18446744073709551620:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}] [L7280] tmp___1 = ldv_init_zalloc(1UL) [L7281] ldvarg4 = tmp___1 VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}] [L7282] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-73786976294838206465:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-73786976294838206465:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-73786976294838206465:0}, ref_cnt=0, size=232, tmp={-73786976294838206465:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-73786976294838206465:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-73786976294838206465:0}, ref_cnt=0, size=232, tmp={-73786976294838206465:0}] [L6221] return (p); VAL [\old(size)=232, \result={-73786976294838206465:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-73786976294838206465:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-73786976294838206465:0}, ref_cnt=0, size=232, tmp={-73786976294838206465:0}] [L7282] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={-73786976294838206465:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}] [L7282] tmp___2 = ldv_init_zalloc(232UL) [L7283] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}] [L7284] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-92233720368547758081:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-92233720368547758081:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-92233720368547758081:0}, ref_cnt=0, size=1, tmp={-92233720368547758081:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-92233720368547758081:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-92233720368547758081:0}, ref_cnt=0, size=1, tmp={-92233720368547758081:0}] [L6221] return (p); VAL [\old(size)=1, \result={-92233720368547758081:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-92233720368547758081:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-92233720368547758081:0}, ref_cnt=0, size=1, tmp={-92233720368547758081:0}] [L7284] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={-92233720368547758081:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}] [L7284] tmp___3 = ldv_init_zalloc(1UL) [L7285] ldvarg6 = (char *)tmp___3 VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}] [L7286] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=232, tmp={18446744073709551617:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=232, tmp={18446744073709551617:0}] [L6221] return (p); VAL [\old(size)=232, \result={18446744073709551617:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=232, tmp={18446744073709551617:0}] [L7286] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={18446744073709551617:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}] [L7286] tmp___4 = ldv_init_zalloc(232UL) [L7287] ldvarg8 = (struct sk_buff *)tmp___4 [L7288] FCALL ldv_initialize() [L7289] CALL ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [\old(c)=0, \old(n)=8, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={18446744073709551621:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=8, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={18446744073709551621:0}, s={18446744073709551621:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=8, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={18446744073709551621:0}, n=8, ref_cnt=0, s={18446744073709551621:0}, s={18446744073709551621:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=8, \result={18446744073709551621:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={18446744073709551621:0}, s={18446744073709551621:0}, tmp={18446744073709551621:0}] [L7289] RET ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={18446744073709551621:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}] [L7290] ldvarg2 = __VERIFIER_nondet_uint () [L7291] CALL ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [\old(c)=0, \old(n)=4, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={18446744073709551620:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=4, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={18446744073709551620:0}, s={18446744073709551620:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=4, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={18446744073709551620:0}, n=4, ref_cnt=0, s={18446744073709551620:0}, s={18446744073709551620:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=4, \result={18446744073709551620:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={18446744073709551620:0}, s={18446744073709551620:0}, tmp={18446744073709551620:0}] [L7291] RET ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg5), 0, 4UL)={18446744073709551620:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}] [L7292] ldv_state_variable_1 = 0 [L7293] ref_cnt = 0 [L7294] ldv_state_variable_0 = 1 [L7295] ldv_state_variable_3 = 0 [L7296] ldv_state_variable_2 = 0 VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: [L7318] case 1: VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}, tmp___5=1] [L7319] COND TRUE ldv_state_variable_0 != 0 [L7320] tmp___7 = __VERIFIER_nondet_int() [L7322] case 0: [L7330] case 1: VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}, tmp___5=1, tmp___7=1] [L7331] COND TRUE ldv_state_variable_0 == 1 [L7332] CALL, EXPR atmtcp_init() [L7216] FCALL register_atm_ioctl(& atmtcp_ioctl_ops) [L7217] return (0); VAL [\result=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7332] RET, EXPR atmtcp_init() [L7332] ldv_retval_0 = atmtcp_init() [L7333] COND TRUE ldv_retval_0 == 0 [L7334] ldv_state_variable_0 = 3 [L7335] ldv_state_variable_1 = 1 VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}, tmp___5=1, tmp___7=1] [L7338] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}, tmp___5=1, tmp___7=1] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}, tmp___5=0, tmp___7=1] [L7301] COND TRUE ldv_state_variable_1 != 0 [L7302] tmp___6 = __VERIFIER_nondet_int() [L7304] case 0: VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={18446744073709551621:0}, ldvarg2=24960, ldvarg3={-73786976294838206465:0}, ldvarg4={-55340232221128654849:0}, ldvarg5={18446744073709551620:0}, ldvarg6={-92233720368547758081:0}, ldvarg7={-55340232221128654847:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-55340232221128654847:0}, tmp___1={-55340232221128654849:0}, tmp___2={-73786976294838206465:0}, tmp___3={-92233720368547758081:0}, tmp___4={18446744073709551617:0}, tmp___5=0, tmp___6=0, tmp___7=1] [L7305] COND TRUE ldv_state_variable_1 == 1 [L7306] EXPR \read(ldvarg1) [L7306] CALL atmtcp_ioctl(ldvarg0, ldvarg2, ldvarg1) [L7169] int err ; [L7170] struct atm_vcc *vcc ; [L7171] struct atm_vcc *tmp ; [L7172] bool tmp___0 ; [L7173] int tmp___1 ; [L7175] err = 0 [L7176] CALL, EXPR ATM_SD(sock) [L6342] struct atm_vcc *tmp ; [L6344] EXPR sock->sk VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, sock->sk={18446744073709551632:18446744073709551623}] [L6344] CALL, EXPR atm_sk(sock->sk) VAL [__this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={18446744073709551632:18446744073709551623}] [L6337] return ((struct atm_vcc *)sk); VAL [\result={18446744073709551632:18446744073709551623}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={18446744073709551632:18446744073709551623}, sk={18446744073709551632:18446744073709551623}] [L6344] RET, EXPR atm_sk(sock->sk) VAL [__this_module={29:-28}, atm_sk(sock->sk)={18446744073709551632:18446744073709551623}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, sock->sk={18446744073709551632:18446744073709551623}] [L6344] tmp = atm_sk(sock->sk) [L6345] return (tmp); VAL [\result={18446744073709551632:18446744073709551623}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, tmp={18446744073709551632:18446744073709551623}] [L7176] RET, EXPR ATM_SD(sock) [L7176] tmp = ATM_SD(sock) [L7177] vcc = tmp VAL [\old(arg)=0, \old(cmd)=24960, __this_module={29:-28}, arg=0, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24960, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, tmp={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7178] COND FALSE !((cmd != 24960U && cmd != 24974U) && cmd != 24975U) [L7182] CALL, EXPR capable(12) [L7680] return __VERIFIER_nondet_bool(); [L7182] RET, EXPR capable(12) [L7182] tmp___0 = capable(12) [L7183] COND TRUE \read(tmp___0) [L7184] tmp___1 = 0 VAL [\old(arg)=0, \old(cmd)=24960, __this_module={29:-28}, arg=0, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24960, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, tmp={18446744073709551632:18446744073709551623}, tmp___0=1, tmp___1=0, vcc={18446744073709551632:18446744073709551623}] [L7188] COND FALSE !(\read(tmp___1)) [L7193] case 24960U: [L7194] CALL atmtcp_attach(vcc, (int )arg) [L7089] struct atm_dev *dev ; [L7090] int error ; [L7091] struct sock *tmp ; [L7093] dev = (struct atm_dev *)0 VAL [\old(itf)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={18446744073709551619:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7094] COND TRUE itf != -1 VAL [\old(itf)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={18446744073709551619:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7095] CALL, EXPR atm_dev_lookup(itf) VAL [\old(arg0)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] CALL, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(size)=1598, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6181] void *p ; [L6182] void *tmp ; [L6183] int tmp___0 ; [L6185] tmp___0 = __VERIFIER_nondet_int() [L6186] COND FALSE !(tmp___0 != 0) [L6189] tmp = malloc(size) [L6190] p = tmp VAL [\old(size)=1598, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551615:0}, ref_cnt=0, size=1598, tmp={-18446744073709551615:0}, tmp___0=0] [L6191] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6191] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1598, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551615:0}, ref_cnt=0, size=1598, tmp={-18446744073709551615:0}, tmp___0=0] [L6192] return (p); VAL [\old(size)=1598, \result={-18446744073709551615:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551615:0}, ref_cnt=0, size=1598, tmp={-18446744073709551615:0}, tmp___0=0] [L7669] RET, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(arg0)=0, __this_module={29:-28}, arg0=0, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct atm_dev))={-18446744073709551615:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] return ldv_malloc(sizeof(struct atm_dev)); [L7095] RET, EXPR atm_dev_lookup(itf) VAL [\old(itf)=0, __this_module={29:-28}, atm_dev_lookup(itf)={-18446744073709551615:0}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={18446744073709551619:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7095] dev = atm_dev_lookup(itf) [L7098] EXPR \read(*dev) VAL [\old(itf)=0, \read(*dev)={-18446744073709551615:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={18446744073709551619:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7098] COND TRUE (unsigned long )dev != (unsigned long )((struct atm_dev *)0) [L7099] EXPR \read(*dev) [L7099] EXPR dev->ops VAL [\old(itf)=0, \read(*dev)={-18446744073709551615:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={18446744073709551619:0}, dev->ops={20:-6}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7099] COND FALSE !((unsigned long )dev->ops != (unsigned long )((struct atmdev_ops const *)(& atmtcp_v_dev_ops))) [L7104] EXPR \read(*dev) [L7104] EXPR dev->dev_data [L7104] EXPR ((struct atmtcp_dev_data *)dev->dev_data)->vcc VAL [((struct atmtcp_dev_data *)dev->dev_data)->vcc={-20:21}, \old(itf)=0, \read(*dev)={-18446744073709551615:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={18446744073709551619:0}, dev->dev_data={18446744073709551627:18446744073709551628}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7104] COND TRUE (unsigned long )((struct atmtcp_dev_data *)dev->dev_data)->vcc != (unsigned long )((struct atm_vcc *)0) [L7105] EXPR \read(*dev) VAL [\old(itf)=0, \read(*dev)={-18446744073709551615:0}, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={18446744073709551619:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={18446744073709551632:18446744073709551623}, vcc={18446744073709551632:18446744073709551623}] [L7105] CALL atm_dev_put(dev) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6377] int tmp ; [L6378] long tmp___0 ; [L6379] int tmp___1 ; [L6381] CALL, EXPR atomic_dec_and_test(& dev->refcnt) [L6126] char c ; [L6130] return ((int )((signed char )c) != 0); VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=1, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=18446744073709551622, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, v={-18446744073709551615:157}, v={-18446744073709551615:157}] [L6381] RET, EXPR atomic_dec_and_test(& dev->refcnt) [L6381] tmp___1 = atomic_dec_and_test(& dev->refcnt) [L6382] COND TRUE tmp___1 != 0 [L6383] CALL, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6045] EXPR addr + (unsigned long )(nr >> 6) [L6045] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L6383] RET, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6383] tmp = constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6384] CALL, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6258] return (exp); VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6384] RET, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-18446744073709551615:0}, dev={-18446744073709551615:0}, ldv__builtin_expect(tmp == 0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=26, tmp___1=1] [L6384] tmp___0 = ldv__builtin_expect(tmp == 0, 0L) [L6385] COND FALSE !(tmp___0 != 0L) [L6392] EXPR dev->ops [L6392] EXPR (dev->ops)->dev_close VAL [(dev->ops)->dev_close={-1:7}, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-18446744073709551615:0}, dev={-18446744073709551615:0}, dev->ops={20:-6}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=26, tmp___0=0, tmp___1=1] [L6392] COND TRUE (unsigned long )(dev->ops)->dev_close != (unsigned long )((void (* )(struct atm_dev * ))0) [L6393] EXPR dev->ops [L6393] EXPR (dev->ops)->dev_close [L6393] CALL (*((dev->ops)->dev_close))(dev) [L6824] struct atm_dev *atmtcp_dev ; [L6825] struct atmtcp_dev_data *dev_data ; [L6827] EXPR vcc->dev_data [L6827] atmtcp_dev = (struct atm_dev *)vcc->dev_data [L6828] EXPR atmtcp_dev->dev_data [L6828] dev_data = (struct atmtcp_dev_data *)atmtcp_dev->dev_data [L6829] dev_data->vcc = (struct atm_vcc *)0 [L6830] EXPR dev_data->persist VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_dev={-18446744073709551615:27}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={18446744073709551631:-13}, dev_data->persist=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-18446744073709551615:0}, vcc={-18446744073709551615:0}] [L6830] COND FALSE !(dev_data->persist != 0) [L6834] atmtcp_dev->dev_data = (void *)0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_dev={-18446744073709551615:27}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={18446744073709551631:-13}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-18446744073709551615:0}, vcc={-18446744073709551615:0}] [L6835] CALL kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551631:-13}, ref_cnt=0] [L6835] RET kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_dev={-18446744073709551615:27}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={18446744073709551631:-13}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-18446744073709551615:0}, vcc={-18446744073709551615:0}] [L6836] CALL ldv_atm_dev_deregister_5(atmtcp_dev) [L7476] FCALL atm_dev_deregister(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={-18446744073709551615:27}, ldv_func_arg1={-18446744073709551615:27}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7477] ldv_state_variable_3 = 0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={-18446744073709551615:27}, ldv_func_arg1={-18446744073709551615:27}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6836] RET ldv_atm_dev_deregister_5(atmtcp_dev) [L6837] vcc->dev_data = (void *)0 [L6838] CALL ldv_module_put_6(& __this_module) [L7484] CALL ldv_module_put(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={29:-28}, ref_cnt=0] [L7596] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={29:-28}, module={29:-28}, ref_cnt=0] [L7597] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={29:-28}, module={29:-28}, ref_cnt=0] [L7598] CALL ldv_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7526] reach_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={29:-28}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 626 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 416.1s, OverallIterations: 20, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 348.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 mSolverCounterUnknown, 18576 SdHoareTripleChecker+Valid, 321.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17684 mSDsluCounter, 90149 SdHoareTripleChecker+Invalid, 308.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77270 mSDsCounter, 10103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41585 IncrementalHoareTripleChecker+Invalid, 51767 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10103 mSolverCounterUnsat, 12879 mSDtfsCounter, 41585 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4451 GetRequests, 4006 SyntacticMatches, 17 SemanticMatches, 428 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2986 ImplicationChecksByTransitivity, 35.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2325occurred in iteration=3, InterpolantAutomatonStates: 269, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 11456 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 13.1s SatisfiabilityAnalysisTime, 42.4s InterpolantComputationTime, 5413 NumberOfCodeBlocks, 5413 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 6631 ConstructedInterpolants, 0 QuantifiedInterpolants, 13193 SizeOfPredicates, 25 NumberOfNonLiveVariables, 18572 ConjunctsInSsa, 214 ConjunctsInUnsatCore, 34 InterpolantComputations, 12 PerfectInterpolantSequences, 8279/8940 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 18:53:53,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro --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 e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:53:55,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:53:55,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:53:55,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:53:55,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:53:55,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:53:55,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:53:55,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:53:55,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:53:55,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:53:55,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:53:55,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:53:55,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:53:55,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:53:55,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:53:55,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:53:55,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:53:55,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:53:55,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:53:55,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:53:55,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:53:55,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:53:55,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:53:55,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:53:55,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:53:55,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:53:55,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:53:55,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:53:55,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:53:55,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:53:55,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:53:55,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:53:55,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:53:55,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:53:55,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:53:55,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:53:55,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:53:55,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:53:55,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:53:55,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:53:55,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:53:55,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 18:53:56,016 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:53:56,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:53:56,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:53:56,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:53:56,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:53:56,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:53:56,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:53:56,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:53:56,021 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:53:56,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:53:56,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:53:56,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:53:56,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:53:56,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:53:56,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:53:56,023 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:53:56,023 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:53:56,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:53:56,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:53:56,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:53:56,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:53:56,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:53:56,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:53:56,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:53:56,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:53:56,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:53:56,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:53:56,026 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:53:56,026 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:53:56,026 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:53:56,027 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:53:56,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:53:56,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:53:56,027 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_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b [2022-11-18 18:53:56,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:53:56,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:53:56,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:53:56,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:53:56,479 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:53:56,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-18 18:53:56,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/728feff4a/8f40758e0a4249c580ad341ebea0379e/FLAG023ee3428 [2022-11-18 18:53:57,470 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:53:57,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-18 18:53:57,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/728feff4a/8f40758e0a4249c580ad341ebea0379e/FLAG023ee3428 [2022-11-18 18:53:57,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/data/728feff4a/8f40758e0a4249c580ad341ebea0379e [2022-11-18 18:53:58,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:53:58,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:53:58,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:53:58,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:53:58,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:53:58,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:53:58" (1/1) ... [2022-11-18 18:53:58,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df7da9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:53:58, skipping insertion in model container [2022-11-18 18:53:58,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:53:58" (1/1) ... [2022-11-18 18:53:58,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:53:58,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:53:59,654 WARN L234 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_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-18 18:53:59,703 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-18 18:53:59,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:53:59,824 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 18:53:59,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:54:00,103 WARN L234 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_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-18 18:54:00,108 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-18 18:54:00,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:54:00,147 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:54:00,523 WARN L234 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_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-18 18:54:00,532 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-18 18:54:00,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:54:00,631 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:54:00,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00 WrapperNode [2022-11-18 18:54:00,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:54:00,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:54:00,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:54:00,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:54:00,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:00,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:00,885 INFO L138 Inliner]: procedures = 155, calls = 1103, calls flagged for inlining = 57, calls inlined = 55, statements flattened = 2393 [2022-11-18 18:54:00,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:54:00,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:54:00,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:54:00,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:54:00,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:00,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:00,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:00,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:01,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:01,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:01,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:01,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:01,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:54:01,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:54:01,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:54:01,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:54:01,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (1/1) ... [2022-11-18 18:54:01,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:54:01,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:54:01,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:54:01,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:54:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2022-11-18 18:54:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2022-11-18 18:54:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 18:54:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-18 18:54:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-18 18:54:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2022-11-18 18:54:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2022-11-18 18:54:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2022-11-18 18:54:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2022-11-18 18:54:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 18:54:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-18 18:54:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 18:54:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:54:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-18 18:54:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:54:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:54:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:54:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 18:54:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 18:54:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-18 18:54:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-18 18:54:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:54:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:54:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 18:54:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 18:54:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:54:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:54:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-11-18 18:54:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-11-18 18:54:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-18 18:54:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-18 18:54:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2022-11-18 18:54:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2022-11-18 18:54:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:54:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:54:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:54:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:54:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-18 18:54:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-18 18:54:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-18 18:54:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-18 18:54:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:54:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:54:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 18:54:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 18:54:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:54:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:54:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2022-11-18 18:54:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2022-11-18 18:54:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 18:54:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 18:54:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:54:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:54:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:54:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 18:54:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 18:54:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-18 18:54:01,295 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-18 18:54:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:54:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-18 18:54:01,296 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-18 18:54:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2022-11-18 18:54:01,296 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2022-11-18 18:54:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-18 18:54:01,297 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-18 18:54:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:54:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:54:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 18:54:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-18 18:54:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-18 18:54:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-18 18:54:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:54:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-18 18:54:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2022-11-18 18:54:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2022-11-18 18:54:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2022-11-18 18:54:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2022-11-18 18:54:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2022-11-18 18:54:01,299 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2022-11-18 18:54:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-18 18:54:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-18 18:54:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-18 18:54:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:54:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 18:54:01,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:54:01,301 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2022-11-18 18:54:01,302 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2022-11-18 18:54:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:54:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 18:54:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-18 18:54:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 18:54:01,302 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 18:54:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2022-11-18 18:54:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2022-11-18 18:54:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 18:54:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 18:54:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2022-11-18 18:54:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2022-11-18 18:54:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 18:54:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 18:54:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-18 18:54:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2022-11-18 18:54:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2022-11-18 18:54:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:54:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:54:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2022-11-18 18:54:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2022-11-18 18:54:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2022-11-18 18:54:01,307 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2022-11-18 18:54:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:54:01,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:54:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2022-11-18 18:54:01,309 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2022-11-18 18:54:01,853 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:54:01,856 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:54:07,293 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:54:30,745 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:54:30,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:54:30,759 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:54:30,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:54:30 BoogieIcfgContainer [2022-11-18 18:54:30,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:54:30,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:54:30,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:54:30,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:54:30,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:53:58" (1/3) ... [2022-11-18 18:54:30,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb071d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:54:30, skipping insertion in model container [2022-11-18 18:54:30,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:54:00" (2/3) ... [2022-11-18 18:54:30,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb071d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:54:30, skipping insertion in model container [2022-11-18 18:54:30,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:54:30" (3/3) ... [2022-11-18 18:54:30,777 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-18 18:54:30,796 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:54:30,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:54:30,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:54:30,875 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ba2bea3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:54:30,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:54:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-18 18:54:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 18:54:30,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:54:30,900 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:54:30,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:54:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:54:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash 653302310, now seen corresponding path program 1 times [2022-11-18 18:54:30,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:54:30,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820800877] [2022-11-18 18:54:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:54:30,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:30,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:54:30,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:54:30,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:54:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:54:31,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:54:31,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:54:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-18 18:54:32,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:54:32,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:54:32,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820800877] [2022-11-18 18:54:32,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820800877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:54:32,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:54:32,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:54:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359042551] [2022-11-18 18:54:32,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:54:32,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:54:32,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:54:32,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:54:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:54:32,814 INFO L87 Difference]: Start difference. First operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 18:54:33,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:54:33,929 INFO L93 Difference]: Finished difference Result 1251 states and 1782 transitions. [2022-11-18 18:54:33,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:54:33,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2022-11-18 18:54:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:54:33,967 INFO L225 Difference]: With dead ends: 1251 [2022-11-18 18:54:33,967 INFO L226 Difference]: Without dead ends: 613 [2022-11-18 18:54:33,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:54:33,979 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 6 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4279 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:54:33,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4279 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 18:54:34,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-11-18 18:54:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2022-11-18 18:54:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 442 states have (on average 1.3257918552036199) internal successors, (586), 452 states have internal predecessors, (586), 132 states have call successors, (132), 39 states have call predecessors, (132), 38 states have return successors, (130), 127 states have call predecessors, (130), 130 states have call successors, (130) [2022-11-18 18:54:34,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 848 transitions. [2022-11-18 18:54:34,091 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 848 transitions. Word has length 133 [2022-11-18 18:54:34,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:54:34,094 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 848 transitions. [2022-11-18 18:54:34,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 18:54:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 848 transitions. [2022-11-18 18:54:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 18:54:34,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:54:34,100 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:54:34,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:54:34,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:34,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:54:34,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:54:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash 551984542, now seen corresponding path program 1 times [2022-11-18 18:54:34,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:54:34,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356067156] [2022-11-18 18:54:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:54:34,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:34,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:54:34,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:54:34,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:54:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:54:35,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:54:35,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:54:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-11-18 18:54:36,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:54:39,105 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-18 18:54:39,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:54:39,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356067156] [2022-11-18 18:54:39,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356067156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:54:39,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:54:39,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-18 18:54:39,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388020184] [2022-11-18 18:54:39,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:54:39,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:54:39,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:54:39,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:54:39,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:54:39,110 INFO L87 Difference]: Start difference. First operand 613 states and 848 transitions. Second operand has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-18 18:54:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:54:41,639 INFO L93 Difference]: Finished difference Result 1221 states and 1698 transitions. [2022-11-18 18:54:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:54:41,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 135 [2022-11-18 18:54:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:54:41,647 INFO L225 Difference]: With dead ends: 1221 [2022-11-18 18:54:41,647 INFO L226 Difference]: Without dead ends: 619 [2022-11-18 18:54:41,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:54:41,651 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 8 mSDsluCounter, 7542 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8385 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:54:41,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8385 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 18:54:41,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-11-18 18:54:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2022-11-18 18:54:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 446 states have (on average 1.3228699551569507) internal successors, (590), 456 states have internal predecessors, (590), 133 states have call successors, (133), 40 states have call predecessors, (133), 39 states have return successors, (131), 128 states have call predecessors, (131), 131 states have call successors, (131) [2022-11-18 18:54:41,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 854 transitions. [2022-11-18 18:54:41,696 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 854 transitions. Word has length 135 [2022-11-18 18:54:41,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:54:41,696 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 854 transitions. [2022-11-18 18:54:41,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-18 18:54:41,697 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 854 transitions. [2022-11-18 18:54:41,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-18 18:54:41,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:54:41,700 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-11-18 18:54:41,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:54:41,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:41,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:54:41,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:54:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash -784279514, now seen corresponding path program 2 times [2022-11-18 18:54:41,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:54:41,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39488643] [2022-11-18 18:54:41,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:54:41,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:41,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:54:41,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:54:41,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 18:54:42,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:54:42,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:54:42,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:54:42,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:54:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-18 18:54:46,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:54:46,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:54:46,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39488643] [2022-11-18 18:54:46,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39488643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:54:46,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:54:46,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:54:46,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085115925] [2022-11-18 18:54:46,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:54:46,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:54:46,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:54:46,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:54:46,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:54:46,877 INFO L87 Difference]: Start difference. First operand 619 states and 854 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 18:54:47,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:54:47,070 INFO L93 Difference]: Finished difference Result 1797 states and 2493 transitions. [2022-11-18 18:54:47,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:54:47,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 137 [2022-11-18 18:54:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:54:47,085 INFO L225 Difference]: With dead ends: 1797 [2022-11-18 18:54:47,085 INFO L226 Difference]: Without dead ends: 1203 [2022-11-18 18:54:47,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:54:47,091 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 784 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:54:47,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1928 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:54:47,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-11-18 18:54:47,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1200. [2022-11-18 18:54:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 869 states have (on average 1.327963176064442) internal successors, (1154), 888 states have internal predecessors, (1154), 254 states have call successors, (254), 77 states have call predecessors, (254), 76 states have return successors, (252), 246 states have call predecessors, (252), 252 states have call successors, (252) [2022-11-18 18:54:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1660 transitions. [2022-11-18 18:54:47,194 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1660 transitions. Word has length 137 [2022-11-18 18:54:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:54:47,195 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 1660 transitions. [2022-11-18 18:54:47,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 18:54:47,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1660 transitions. [2022-11-18 18:54:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-18 18:54:47,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:54:47,206 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-11-18 18:54:47,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:54:47,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:47,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:54:47,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:54:47,420 INFO L85 PathProgramCache]: Analyzing trace with hash -122962978, now seen corresponding path program 1 times [2022-11-18 18:54:47,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:54:47,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562803386] [2022-11-18 18:54:47,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:54:47,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:47,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:54:47,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:54:47,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 18:54:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:54:48,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:54:48,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:54:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-18 18:54:49,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:54:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-18 18:54:53,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:54:53,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562803386] [2022-11-18 18:54:53,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562803386] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:54:53,067 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:54:53,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-18 18:54:53,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990097989] [2022-11-18 18:54:53,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:54:53,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:54:53,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:54:53,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:54:53,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:54:53,069 INFO L87 Difference]: Start difference. First operand 1200 states and 1660 transitions. Second operand has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:54:55,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:54:55,491 INFO L93 Difference]: Finished difference Result 2391 states and 3328 transitions. [2022-11-18 18:54:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:54:55,492 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 154 [2022-11-18 18:54:55,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:54:55,500 INFO L225 Difference]: With dead ends: 2391 [2022-11-18 18:54:55,500 INFO L226 Difference]: Without dead ends: 1202 [2022-11-18 18:54:55,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:54:55,506 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 13 mSDsluCounter, 5869 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6712 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:54:55,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6712 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-18 18:54:55,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-11-18 18:54:55,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1202. [2022-11-18 18:54:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 871 states have (on average 1.3272101033295063) internal successors, (1156), 890 states have internal predecessors, (1156), 254 states have call successors, (254), 77 states have call predecessors, (254), 76 states have return successors, (252), 246 states have call predecessors, (252), 252 states have call successors, (252) [2022-11-18 18:54:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1662 transitions. [2022-11-18 18:54:55,567 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1662 transitions. Word has length 154 [2022-11-18 18:54:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:54:55,569 INFO L495 AbstractCegarLoop]: Abstraction has 1202 states and 1662 transitions. [2022-11-18 18:54:55,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:54:55,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1662 transitions. [2022-11-18 18:54:55,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 18:54:55,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:54:55,574 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:54:55,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:54:55,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:55,787 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:54:55,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:54:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash 865547622, now seen corresponding path program 2 times [2022-11-18 18:54:55,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:54:55,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382770132] [2022-11-18 18:54:55,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:54:55,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:54:55,790 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:54:55,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 18:54:56,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:54:56,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:54:56,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:54:56,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:54:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-18 18:54:56,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:54:56,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:54:56,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382770132] [2022-11-18 18:54:56,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382770132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:54:56,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:54:56,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:54:56,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956978587] [2022-11-18 18:54:56,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:54:56,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:54:56,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:54:56,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:54:56,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:54:56,777 INFO L87 Difference]: Start difference. First operand 1202 states and 1662 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:54:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:54:57,017 INFO L93 Difference]: Finished difference Result 2201 states and 3027 transitions. [2022-11-18 18:54:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:54:57,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 156 [2022-11-18 18:54:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:54:57,025 INFO L225 Difference]: With dead ends: 2201 [2022-11-18 18:54:57,026 INFO L226 Difference]: Without dead ends: 1028 [2022-11-18 18:54:57,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:54:57,031 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 709 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:54:57,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 715 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:54:57,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-11-18 18:54:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2022-11-18 18:54:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 747 states have (on average 1.319946452476573) internal successors, (986), 760 states have internal predecessors, (986), 208 states have call successors, (208), 73 states have call predecessors, (208), 72 states have return successors, (206), 202 states have call predecessors, (206), 206 states have call successors, (206) [2022-11-18 18:54:57,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1400 transitions. [2022-11-18 18:54:57,100 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1400 transitions. Word has length 156 [2022-11-18 18:54:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:54:57,101 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1400 transitions. [2022-11-18 18:54:57,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:54:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1400 transitions. [2022-11-18 18:54:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-18 18:54:57,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:54:57,107 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:54:57,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:54:57,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:57,331 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:54:57,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:54:57,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1850370297, now seen corresponding path program 1 times [2022-11-18 18:54:57,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:54:57,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63270892] [2022-11-18 18:54:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:54:57,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:54:57,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:54:57,336 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:54:57,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 18:54:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:54:58,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:54:58,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:54:59,676 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-18 18:54:59,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:55:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-18 18:55:04,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:55:04,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63270892] [2022-11-18 18:55:04,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63270892] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:55:04,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:55:04,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-18 18:55:04,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418795032] [2022-11-18 18:55:04,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:55:04,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 18:55:04,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:55:04,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 18:55:04,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:55:04,523 INFO L87 Difference]: Start difference. First operand 1028 states and 1400 transitions. Second operand has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:55:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:55:07,549 INFO L93 Difference]: Finished difference Result 2047 states and 2808 transitions. [2022-11-18 18:55:07,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:55:07,551 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 173 [2022-11-18 18:55:07,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:55:07,557 INFO L225 Difference]: With dead ends: 2047 [2022-11-18 18:55:07,558 INFO L226 Difference]: Without dead ends: 1030 [2022-11-18 18:55:07,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:55:07,562 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 10 mSDsluCounter, 6366 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:55:07,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7078 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 18:55:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-11-18 18:55:07,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-11-18 18:55:07,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 749 states have (on average 1.3190921228304406) internal successors, (988), 762 states have internal predecessors, (988), 208 states have call successors, (208), 73 states have call predecessors, (208), 72 states have return successors, (206), 202 states have call predecessors, (206), 206 states have call successors, (206) [2022-11-18 18:55:07,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1402 transitions. [2022-11-18 18:55:07,617 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1402 transitions. Word has length 173 [2022-11-18 18:55:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:55:07,618 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1402 transitions. [2022-11-18 18:55:07,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:55:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1402 transitions. [2022-11-18 18:55:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-18 18:55:07,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:55:07,626 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:55:07,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:55:07,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:07,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:55:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:55:07,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1083564159, now seen corresponding path program 2 times [2022-11-18 18:55:07,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:55:07,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434583050] [2022-11-18 18:55:07,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:55:07,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:07,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:55:07,855 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:55:07,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 18:55:08,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:55:08,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:55:08,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:55:08,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:55:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-18 18:55:09,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:55:09,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:55:09,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434583050] [2022-11-18 18:55:09,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434583050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:55:09,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:55:09,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:55:09,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953380464] [2022-11-18 18:55:09,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:55:09,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:55:09,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:55:09,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:55:09,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:55:09,711 INFO L87 Difference]: Start difference. First operand 1030 states and 1402 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:55:10,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:55:10,158 INFO L93 Difference]: Finished difference Result 3021 states and 4119 transitions. [2022-11-18 18:55:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:55:10,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 175 [2022-11-18 18:55:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:55:10,174 INFO L225 Difference]: With dead ends: 3021 [2022-11-18 18:55:10,174 INFO L226 Difference]: Without dead ends: 2020 [2022-11-18 18:55:10,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:55:10,179 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 636 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:55:10,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1562 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:55:10,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2022-11-18 18:55:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 2016. [2022-11-18 18:55:10,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1469 states have (on average 1.3206262763784888) internal successors, (1940), 1494 states have internal predecessors, (1940), 404 states have call successors, (404), 143 states have call predecessors, (404), 142 states have return successors, (402), 394 states have call predecessors, (402), 402 states have call successors, (402) [2022-11-18 18:55:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2746 transitions. [2022-11-18 18:55:10,297 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2746 transitions. Word has length 175 [2022-11-18 18:55:10,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:55:10,297 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 2746 transitions. [2022-11-18 18:55:10,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:55:10,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2746 transitions. [2022-11-18 18:55:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-18 18:55:10,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:55:10,303 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:55:10,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:55:10,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:10,518 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:55:10,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:55:10,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1216301736, now seen corresponding path program 1 times [2022-11-18 18:55:10,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:55:10,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618322827] [2022-11-18 18:55:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:55:10,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:10,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:55:10,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:55:10,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 18:55:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:11,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:55:11,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:55:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-18 18:55:13,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:55:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-18 18:55:18,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:55:18,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618322827] [2022-11-18 18:55:18,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618322827] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:55:18,734 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:55:18,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-18 18:55:18,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606711314] [2022-11-18 18:55:18,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:55:18,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 18:55:18,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:55:18,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 18:55:18,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:55:18,737 INFO L87 Difference]: Start difference. First operand 2016 states and 2746 transitions. Second operand has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 18:55:23,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:55:23,102 INFO L93 Difference]: Finished difference Result 4032 states and 5533 transitions. [2022-11-18 18:55:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 18:55:23,103 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 182 [2022-11-18 18:55:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:55:23,120 INFO L225 Difference]: With dead ends: 4032 [2022-11-18 18:55:23,121 INFO L226 Difference]: Without dead ends: 2028 [2022-11-18 18:55:23,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:55:23,132 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 20 mSDsluCounter, 6370 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7083 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:55:23,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7083 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-18 18:55:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-11-18 18:55:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-11-18 18:55:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1480 states have (on average 1.318918918918919) internal successors, (1952), 1505 states have internal predecessors, (1952), 404 states have call successors, (404), 144 states have call predecessors, (404), 143 states have return successors, (402), 394 states have call predecessors, (402), 402 states have call successors, (402) [2022-11-18 18:55:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2758 transitions. [2022-11-18 18:55:23,256 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2758 transitions. Word has length 182 [2022-11-18 18:55:23,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:55:23,259 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 2758 transitions. [2022-11-18 18:55:23,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 18:55:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2758 transitions. [2022-11-18 18:55:23,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-18 18:55:23,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:55:23,265 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:55:23,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:55:23,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:23,479 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:55:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:55:23,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1013021780, now seen corresponding path program 2 times [2022-11-18 18:55:23,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:55:23,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408391840] [2022-11-18 18:55:23,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:55:23,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:23,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:55:23,482 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:55:23,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 18:55:24,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:55:24,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:55:24,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:55:24,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:55:24,389 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-11-18 18:55:24,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:55:24,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:55:24,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408391840] [2022-11-18 18:55:24,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408391840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:55:24,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:55:24,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:55:24,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340579890] [2022-11-18 18:55:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:55:24,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:55:24,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:55:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:55:24,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:55:24,392 INFO L87 Difference]: Start difference. First operand 2028 states and 2758 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:55:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:55:24,830 INFO L93 Difference]: Finished difference Result 5456 states and 7431 transitions. [2022-11-18 18:55:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:55:24,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 183 [2022-11-18 18:55:24,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:55:24,853 INFO L225 Difference]: With dead ends: 5456 [2022-11-18 18:55:24,853 INFO L226 Difference]: Without dead ends: 3461 [2022-11-18 18:55:24,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:55:24,865 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 527 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:55:24,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1499 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:55:24,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2022-11-18 18:55:25,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3454. [2022-11-18 18:55:25,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 2522 states have (on average 1.3251387787470261) internal successors, (3342), 2563 states have internal predecessors, (3342), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-18 18:55:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 4704 transitions. [2022-11-18 18:55:25,109 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 4704 transitions. Word has length 183 [2022-11-18 18:55:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:55:25,110 INFO L495 AbstractCegarLoop]: Abstraction has 3454 states and 4704 transitions. [2022-11-18 18:55:25,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:55:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 4704 transitions. [2022-11-18 18:55:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 18:55:25,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:55:25,117 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:55:25,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:55:25,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:25,331 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:55:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:55:25,332 INFO L85 PathProgramCache]: Analyzing trace with hash 145557291, now seen corresponding path program 1 times [2022-11-18 18:55:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:55:25,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230723712] [2022-11-18 18:55:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:55:25,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:25,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:55:25,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:55:25,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 18:55:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:26,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 18:55:26,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:55:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-18 18:55:28,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:55:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-18 18:55:34,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:55:34,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230723712] [2022-11-18 18:55:34,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230723712] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:55:34,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:55:34,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-18 18:55:34,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784405929] [2022-11-18 18:55:34,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:55:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 18:55:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:55:34,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 18:55:34,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:55:34,810 INFO L87 Difference]: Start difference. First operand 3454 states and 4704 transitions. Second operand has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:55:40,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:55:40,399 INFO L93 Difference]: Finished difference Result 6904 states and 9466 transitions. [2022-11-18 18:55:40,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 18:55:40,400 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 187 [2022-11-18 18:55:40,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:55:40,418 INFO L225 Difference]: With dead ends: 6904 [2022-11-18 18:55:40,419 INFO L226 Difference]: Without dead ends: 3462 [2022-11-18 18:55:40,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:55:40,431 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 31 mSDsluCounter, 6372 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 7086 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:55:40,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 7086 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-18 18:55:40,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2022-11-18 18:55:40,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3462. [2022-11-18 18:55:40,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 2530 states have (on average 1.3241106719367588) internal successors, (3350), 2571 states have internal predecessors, (3350), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-18 18:55:40,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4712 transitions. [2022-11-18 18:55:40,643 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4712 transitions. Word has length 187 [2022-11-18 18:55:40,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:55:40,643 INFO L495 AbstractCegarLoop]: Abstraction has 3462 states and 4712 transitions. [2022-11-18 18:55:40,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:55:40,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4712 transitions. [2022-11-18 18:55:40,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-18 18:55:40,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:55:40,652 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:55:40,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:55:40,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:40,867 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:55:40,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:55:40,867 INFO L85 PathProgramCache]: Analyzing trace with hash -201535321, now seen corresponding path program 2 times [2022-11-18 18:55:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:55:40,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103820666] [2022-11-18 18:55:40,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:55:40,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:55:40,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:55:40,870 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:55:40,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 18:55:43,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:55:43,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:55:43,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 18:55:43,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:55:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 43 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-18 18:55:46,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:55:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-18 18:55:53,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:55:53,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103820666] [2022-11-18 18:55:53,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103820666] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:55:53,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:55:53,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-18 18:55:53,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132671402] [2022-11-18 18:55:53,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:55:53,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 18:55:53,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:55:53,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 18:55:53,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:55:53,891 INFO L87 Difference]: Start difference. First operand 3462 states and 4712 transitions. Second operand has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:56:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:56:00,875 INFO L93 Difference]: Finished difference Result 6920 states and 9482 transitions. [2022-11-18 18:56:00,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 18:56:00,877 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 188 [2022-11-18 18:56:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:56:00,896 INFO L225 Difference]: With dead ends: 6920 [2022-11-18 18:56:00,897 INFO L226 Difference]: Without dead ends: 3470 [2022-11-18 18:56:00,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-11-18 18:56:00,909 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 26 mSDsluCounter, 9911 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 10625 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:56:00,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 10625 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-18 18:56:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2022-11-18 18:56:01,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3470. [2022-11-18 18:56:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 2538 states have (on average 1.3230890464933018) internal successors, (3358), 2579 states have internal predecessors, (3358), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-18 18:56:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 4720 transitions. [2022-11-18 18:56:01,110 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 4720 transitions. Word has length 188 [2022-11-18 18:56:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:56:01,110 INFO L495 AbstractCegarLoop]: Abstraction has 3470 states and 4720 transitions. [2022-11-18 18:56:01,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 18:56:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 4720 transitions. [2022-11-18 18:56:01,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-18 18:56:01,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:56:01,117 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:56:01,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:56:01,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:01,331 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:56:01,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:56:01,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1923495595, now seen corresponding path program 3 times [2022-11-18 18:56:01,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:56:01,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722342054] [2022-11-18 18:56:01,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:56:01,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:01,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:56:01,335 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:56:01,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-18 18:56:04,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 18:56:04,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:56:04,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:56:04,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:56:04,206 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-18 18:56:04,268 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-18 18:56:04,518 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-18 18:56:04,555 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-18 18:56:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-11-18 18:56:04,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:56:04,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:56:04,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722342054] [2022-11-18 18:56:04,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722342054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:56:04,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:56:04,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:56:04,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788531085] [2022-11-18 18:56:04,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:56:04,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:56:04,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:56:04,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:56:04,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:56:04,763 INFO L87 Difference]: Start difference. First operand 3470 states and 4720 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:56:09,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:11,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:14,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:16,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:17,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:56:17,016 INFO L93 Difference]: Finished difference Result 6907 states and 9407 transitions. [2022-11-18 18:56:17,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:56:17,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 189 [2022-11-18 18:56:17,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:56:17,040 INFO L225 Difference]: With dead ends: 6907 [2022-11-18 18:56:17,041 INFO L226 Difference]: Without dead ends: 3482 [2022-11-18 18:56:17,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:56:17,052 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 3 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:56:17,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2058 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2022-11-18 18:56:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2022-11-18 18:56:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3478. [2022-11-18 18:56:17,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 2546 states have (on average 1.3220738413197173) internal successors, (3366), 2587 states have internal predecessors, (3366), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-18 18:56:17,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 4728 transitions. [2022-11-18 18:56:17,266 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 4728 transitions. Word has length 189 [2022-11-18 18:56:17,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:56:17,266 INFO L495 AbstractCegarLoop]: Abstraction has 3478 states and 4728 transitions. [2022-11-18 18:56:17,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 18:56:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 4728 transitions. [2022-11-18 18:56:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-18 18:56:17,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:56:17,273 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:56:17,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:56:17,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:17,487 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:56:17,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:56:17,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2080493221, now seen corresponding path program 1 times [2022-11-18 18:56:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:56:17,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394122774] [2022-11-18 18:56:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:56:17,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:17,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:56:17,490 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:56:17,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 18:56:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:56:18,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 18:56:18,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:56:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 48 proven. 28 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-18 18:56:21,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:56:32,557 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-18 18:56:32,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:56:32,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394122774] [2022-11-18 18:56:32,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394122774] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:56:32,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:56:32,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-18 18:56:32,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301330780] [2022-11-18 18:56:32,558 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:56:32,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 18:56:32,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:56:32,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 18:56:32,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:56:32,560 INFO L87 Difference]: Start difference. First operand 3478 states and 4728 transitions. Second operand has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-18 18:56:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:56:40,460 INFO L93 Difference]: Finished difference Result 6952 states and 9514 transitions. [2022-11-18 18:56:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:56:40,464 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 196 [2022-11-18 18:56:40,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:56:40,492 INFO L225 Difference]: With dead ends: 6952 [2022-11-18 18:56:40,492 INFO L226 Difference]: Without dead ends: 3486 [2022-11-18 18:56:40,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-11-18 18:56:40,503 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 39 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 7088 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:56:40,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 7088 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-18 18:56:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3486 states. [2022-11-18 18:56:40,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3486 to 3486. [2022-11-18 18:56:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3486 states, 2554 states have (on average 1.3210649960845733) internal successors, (3374), 2595 states have internal predecessors, (3374), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-18 18:56:40,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3486 states to 3486 states and 4736 transitions. [2022-11-18 18:56:40,700 INFO L78 Accepts]: Start accepts. Automaton has 3486 states and 4736 transitions. Word has length 196 [2022-11-18 18:56:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:56:40,702 INFO L495 AbstractCegarLoop]: Abstraction has 3486 states and 4736 transitions. [2022-11-18 18:56:40,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-18 18:56:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3486 states and 4736 transitions. [2022-11-18 18:56:40,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-18 18:56:40,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:56:40,710 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:56:40,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:56:40,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:40,923 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:56:40,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:56:40,924 INFO L85 PathProgramCache]: Analyzing trace with hash -554478753, now seen corresponding path program 2 times [2022-11-18 18:56:40,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:56:40,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489684301] [2022-11-18 18:56:40,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:56:40,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:40,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:56:40,926 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:56:40,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 18:56:44,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:56:44,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:56:44,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:56:44,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:56:45,627 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-18 18:56:45,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:56:45,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:56:45,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489684301] [2022-11-18 18:56:45,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489684301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:56:45,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:56:45,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:56:45,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734846754] [2022-11-18 18:56:45,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:56:45,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:56:45,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:56:45,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:56:45,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:56:45,632 INFO L87 Difference]: Start difference. First operand 3486 states and 4736 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-18 18:56:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:56:47,399 INFO L93 Difference]: Finished difference Result 8233 states and 11523 transitions. [2022-11-18 18:56:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:56:47,400 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), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 197 [2022-11-18 18:56:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:56:47,424 INFO L225 Difference]: With dead ends: 8233 [2022-11-18 18:56:47,424 INFO L226 Difference]: Without dead ends: 4792 [2022-11-18 18:56:47,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:56:47,436 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 575 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 5046 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:56:47,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 5046 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 18:56:47,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2022-11-18 18:56:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 3510. [2022-11-18 18:56:47,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 2574 states have (on average 1.3185703185703186) internal successors, (3394), 2615 states have internal predecessors, (3394), 682 states have call successors, (682), 250 states have call predecessors, (682), 253 states have return successors, (688), 676 states have call predecessors, (688), 680 states have call successors, (688) [2022-11-18 18:56:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 4764 transitions. [2022-11-18 18:56:47,734 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 4764 transitions. Word has length 197 [2022-11-18 18:56:47,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:56:47,734 INFO L495 AbstractCegarLoop]: Abstraction has 3510 states and 4764 transitions. [2022-11-18 18:56:47,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-18 18:56:47,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 4764 transitions. [2022-11-18 18:56:47,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-18 18:56:47,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:56:47,743 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:56:47,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-18 18:56:47,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:47,967 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:56:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:56:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash 133179952, now seen corresponding path program 1 times [2022-11-18 18:56:47,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:56:47,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369699161] [2022-11-18 18:56:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:56:47,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:56:47,972 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:56:48,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-18 18:56:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:56:49,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 18:56:49,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:56:50,447 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-18 18:56:50,519 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-18 18:56:50,876 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-18 18:56:50,911 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-18 18:56:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-18 18:56:51,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:56:51,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:56:51,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369699161] [2022-11-18 18:56:51,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369699161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:56:51,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:56:51,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:56:51,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093154632] [2022-11-18 18:56:51,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:56:51,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:56:51,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:56:51,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:56:51,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:56:51,290 INFO L87 Difference]: Start difference. First operand 3510 states and 4764 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:56:56,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:00,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:02,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:04,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:05,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:57:05,820 INFO L93 Difference]: Finished difference Result 7019 states and 9563 transitions. [2022-11-18 18:57:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:57:05,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 201 [2022-11-18 18:57:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:57:05,847 INFO L225 Difference]: With dead ends: 7019 [2022-11-18 18:57:05,848 INFO L226 Difference]: Without dead ends: 3554 [2022-11-18 18:57:05,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:57:05,860 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 4 mSDsluCounter, 4179 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:57:05,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4892 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2022-11-18 18:57:05,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2022-11-18 18:57:06,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3534. [2022-11-18 18:57:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 2590 states have (on average 1.3166023166023166) internal successors, (3410), 2631 states have internal predecessors, (3410), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 684 states have call predecessors, (720), 680 states have call successors, (720) [2022-11-18 18:57:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4812 transitions. [2022-11-18 18:57:06,128 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4812 transitions. Word has length 201 [2022-11-18 18:57:06,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:57:06,129 INFO L495 AbstractCegarLoop]: Abstraction has 3534 states and 4812 transitions. [2022-11-18 18:57:06,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:57:06,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4812 transitions. [2022-11-18 18:57:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-18 18:57:06,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:57:06,137 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:57:06,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-18 18:57:06,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:57:06,351 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:57:06,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:57:06,352 INFO L85 PathProgramCache]: Analyzing trace with hash 203555927, now seen corresponding path program 1 times [2022-11-18 18:57:06,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:57:06,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025649169] [2022-11-18 18:57:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:57:06,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:57:06,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:57:06,355 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:57:06,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-18 18:57:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:07,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 18:57:07,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:57:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-18 18:57:09,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:57:09,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:57:09,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025649169] [2022-11-18 18:57:09,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025649169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:57:09,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:57:09,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:57:09,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976108901] [2022-11-18 18:57:09,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:57:09,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:57:09,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:57:09,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:57:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:57:09,402 INFO L87 Difference]: Start difference. First operand 3534 states and 4812 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:57:10,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:57:10,507 INFO L93 Difference]: Finished difference Result 7818 states and 10835 transitions. [2022-11-18 18:57:10,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:57:10,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 208 [2022-11-18 18:57:10,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:57:10,529 INFO L225 Difference]: With dead ends: 7818 [2022-11-18 18:57:10,529 INFO L226 Difference]: Without dead ends: 4329 [2022-11-18 18:57:10,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:57:10,542 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 148 mSDsluCounter, 4345 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 5252 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:57:10,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 5252 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 18:57:10,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4329 states. [2022-11-18 18:57:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4329 to 3542. [2022-11-18 18:57:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3542 states, 2598 states have (on average 1.3156274056966897) internal successors, (3418), 2635 states have internal predecessors, (3418), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 688 states have call predecessors, (720), 680 states have call successors, (720) [2022-11-18 18:57:10,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4820 transitions. [2022-11-18 18:57:10,858 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4820 transitions. Word has length 208 [2022-11-18 18:57:10,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:57:10,859 INFO L495 AbstractCegarLoop]: Abstraction has 3542 states and 4820 transitions. [2022-11-18 18:57:10,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 18:57:10,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4820 transitions. [2022-11-18 18:57:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-18 18:57:10,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:57:10,920 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2022-11-18 18:57:10,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-18 18:57:11,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:57:11,130 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:57:11,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:57:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1558303520, now seen corresponding path program 1 times [2022-11-18 18:57:11,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:57:11,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588320320] [2022-11-18 18:57:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:57:11,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:57:11,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:57:11,133 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:57:11,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-18 18:57:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:12,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:57:12,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:57:12,600 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-11-18 18:57:12,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:57:12,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:57:12,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588320320] [2022-11-18 18:57:12,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588320320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:57:12,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:57:12,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:57:12,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180589289] [2022-11-18 18:57:12,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:57:12,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:57:12,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:57:12,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:57:12,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:57:12,603 INFO L87 Difference]: Start difference. First operand 3542 states and 4820 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 18:57:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:57:13,629 INFO L93 Difference]: Finished difference Result 8337 states and 11679 transitions. [2022-11-18 18:57:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:57:13,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 207 [2022-11-18 18:57:13,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:57:13,715 INFO L225 Difference]: With dead ends: 8337 [2022-11-18 18:57:13,716 INFO L226 Difference]: Without dead ends: 4840 [2022-11-18 18:57:13,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:57:13,725 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 339 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:57:13,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 2520 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 18:57:13,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4840 states. [2022-11-18 18:57:14,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4840 to 3542. [2022-11-18 18:57:14,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3542 states, 2598 states have (on average 1.3156274056966897) internal successors, (3418), 2635 states have internal predecessors, (3418), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 688 states have call predecessors, (720), 680 states have call successors, (720) [2022-11-18 18:57:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4820 transitions. [2022-11-18 18:57:14,060 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4820 transitions. Word has length 207 [2022-11-18 18:57:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:57:14,061 INFO L495 AbstractCegarLoop]: Abstraction has 3542 states and 4820 transitions. [2022-11-18 18:57:14,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 18:57:14,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4820 transitions. [2022-11-18 18:57:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-18 18:57:14,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:57:14,068 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 18:57:14,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-18 18:57:14,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:57:14,283 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:57:14,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:57:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1916797959, now seen corresponding path program 1 times [2022-11-18 18:57:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:57:14,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243163400] [2022-11-18 18:57:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:57:14,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:57:14,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:57:14,287 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:57:14,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ccb8ce-bb48-4bd7-b455-a40adb957b08/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process