./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ --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 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 --- 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-dbf71c6-m [2022-10-17 10:49:46,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:49:46,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:49:46,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:49:46,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:49:46,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:49:46,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:49:46,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:49:46,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:49:46,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:49:46,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:49:46,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:49:46,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:49:46,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:49:46,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:49:46,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:49:46,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:49:46,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:49:46,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:49:46,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:49:46,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:49:46,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:49:46,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:49:46,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:49:46,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:49:46,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:49:46,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:49:46,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:49:46,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:49:46,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:49:46,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:49:46,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:49:46,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:49:46,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:49:46,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:49:46,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:49:46,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:49:46,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:49:46,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:49:46,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:49:46,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:49:46,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:49:46,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:49:46,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:49:46,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:49:46,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:49:46,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:49:46,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:49:46,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:49:46,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:49:46,594 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:49:46,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:49:46,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:49:46,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:49:46,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:49:46,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:49:46,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:49:46,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:49:46,597 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:49:46,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:49:46,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:49:46,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:49:46,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:49:46,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:49:46,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:49:46,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:49:46,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:49:46,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:49:46,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:49:46,600 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:49:46,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:49:46,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:49:46,601 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_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 [2022-10-17 10:49:46,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:49:46,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:49:46,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:49:46,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:49:46,926 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:49:46,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-10-17 10:49:47,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/data/5e1ae6e60/cc40c3c689d94397909d081271ba27ec/FLAGda0dd73f3 [2022-10-17 10:49:47,796 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:49:47,796 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-10-17 10:49:47,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/data/5e1ae6e60/cc40c3c689d94397909d081271ba27ec/FLAGda0dd73f3 [2022-10-17 10:49:48,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/data/5e1ae6e60/cc40c3c689d94397909d081271ba27ec [2022-10-17 10:49:48,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:49:48,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:49:48,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:49:48,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:49:48,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:49:48,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:49:48" (1/1) ... [2022-10-17 10:49:48,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663cc06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:48, skipping insertion in model container [2022-10-17 10:49:48,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:49:48" (1/1) ... [2022-10-17 10:49:48,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:49:48,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:49:49,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2022-10-17 10:49:49,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:49:49,532 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:49:49,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2022-10-17 10:49:49,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:49:50,035 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:49:50,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50 WrapperNode [2022-10-17 10:49:50,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:49:50,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:49:50,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:49:50,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:49:50,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,444 INFO L138 Inliner]: procedures = 133, calls = 4943, calls flagged for inlining = 57, calls inlined = 51, statements flattened = 6018 [2022-10-17 10:49:50,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:49:50,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:49:50,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:49:50,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:49:50,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:49:50,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:49:50,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:49:50,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:49:50,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (1/1) ... [2022-10-17 10:49:50,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:49:50,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:49:51,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:49:51,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e1f5a9-c60c-4c43-86fe-222772be9731/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:49:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2022-10-17 10:49:51,160 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2022-10-17 10:49:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-17 10:49:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-17 10:49:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2022-10-17 10:49:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2022-10-17 10:49:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-17 10:49:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-17 10:49:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-10-17 10:49:51,162 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-10-17 10:49:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2022-10-17 10:49:51,162 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2022-10-17 10:49:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:49:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2022-10-17 10:49:51,162 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2022-10-17 10:49:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:49:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:49:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:49:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:49:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:49:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:49:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:49:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-17 10:49:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-10-17 10:49:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-10-17 10:49:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-10-17 10:49:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2022-10-17 10:49:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2022-10-17 10:49:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2022-10-17 10:49:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2022-10-17 10:49:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:49:51,165 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-10-17 10:49:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-10-17 10:49:51,166 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 10:49:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 10:49:51,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:49:51,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:49:51,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:49:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2022-10-17 10:49:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2022-10-17 10:49:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:49:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:49:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-10-17 10:49:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-10-17 10:49:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:49:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-10-17 10:49:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-10-17 10:49:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2022-10-17 10:49:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-17 10:49:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-17 10:49:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 10:49:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 10:49:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:49:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-17 10:49:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-17 10:49:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:49:51,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:49:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2022-10-17 10:49:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2022-10-17 10:49:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:49:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:49:51,632 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:49:51,636 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:50:05,732 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:50:05,749 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:50:05,749 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:50:05,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:50:05 BoogieIcfgContainer [2022-10-17 10:50:05,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:50:05,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:50:05,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:50:05,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:50:05,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:49:48" (1/3) ... [2022-10-17 10:50:05,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b2aaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:50:05, skipping insertion in model container [2022-10-17 10:50:05,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:50" (2/3) ... [2022-10-17 10:50:05,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b2aaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:50:05, skipping insertion in model container [2022-10-17 10:50:05,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:50:05" (3/3) ... [2022-10-17 10:50:05,767 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-10-17 10:50:05,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:50:05,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:50:05,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:50:05,897 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;@1451a373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:50:05,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:50:05,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 499 states, 395 states have (on average 1.4329113924050634) internal successors, (566), 404 states have internal predecessors, (566), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-10-17 10:50:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 10:50:05,948 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:50:05,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:50:05,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:50:05,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:50:05,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1860140379, now seen corresponding path program 1 times [2022-10-17 10:50:05,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:50:05,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156172327] [2022-10-17 10:50:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:50:05,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:50:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:07,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:50:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:50:08,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:50:08,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156172327] [2022-10-17 10:50:08,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156172327] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:50:08,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:50:08,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:50:08,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84885227] [2022-10-17 10:50:08,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:50:08,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:50:08,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:50:08,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:50:08,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:50:08,080 INFO L87 Difference]: Start difference. First operand has 499 states, 395 states have (on average 1.4329113924050634) internal successors, (566), 404 states have internal predecessors, (566), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:50:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:50:08,987 INFO L93 Difference]: Finished difference Result 1407 states and 2087 transitions. [2022-10-17 10:50:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:50:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-10-17 10:50:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:50:09,028 INFO L225 Difference]: With dead ends: 1407 [2022-10-17 10:50:09,029 INFO L226 Difference]: Without dead ends: 907 [2022-10-17 10:50:09,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:50:09,046 INFO L413 NwaCegarLoop]: 1029 mSDtfsCounter, 682 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:50:09,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1642 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:50:09,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-10-17 10:50:09,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 903. [2022-10-17 10:50:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 714 states have (on average 1.4341736694677871) internal successors, (1024), 724 states have internal predecessors, (1024), 143 states have call successors, (143), 46 states have call predecessors, (143), 45 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2022-10-17 10:50:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1305 transitions. [2022-10-17 10:50:09,252 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1305 transitions. Word has length 21 [2022-10-17 10:50:09,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:50:09,253 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1305 transitions. [2022-10-17 10:50:09,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:50:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1305 transitions. [2022-10-17 10:50:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 10:50:09,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:50:09,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:50:09,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:50:09,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:50:09,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:50:09,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1341252181, now seen corresponding path program 1 times [2022-10-17 10:50:09,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:50:09,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663812495] [2022-10-17 10:50:09,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:50:09,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:50:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:50:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:50:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:50:10,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:50:10,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663812495] [2022-10-17 10:50:10,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663812495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:50:10,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:50:10,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:50:10,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969307052] [2022-10-17 10:50:10,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:50:10,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:50:10,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:50:10,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:50:10,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:50:10,469 INFO L87 Difference]: Start difference. First operand 903 states and 1305 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:50:12,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:50:12,709 INFO L93 Difference]: Finished difference Result 2674 states and 3857 transitions. [2022-10-17 10:50:12,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:50:12,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-10-17 10:50:12,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:50:12,734 INFO L225 Difference]: With dead ends: 2674 [2022-10-17 10:50:12,734 INFO L226 Difference]: Without dead ends: 1774 [2022-10-17 10:50:12,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:50:12,742 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 731 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:50:12,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 1772 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-17 10:50:12,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2022-10-17 10:50:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1577. [2022-10-17 10:50:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1235 states have (on average 1.4008097165991902) internal successors, (1730), 1251 states have internal predecessors, (1730), 256 states have call successors, (256), 86 states have call predecessors, (256), 85 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2022-10-17 10:50:12,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2237 transitions. [2022-10-17 10:50:12,904 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2237 transitions. Word has length 28 [2022-10-17 10:50:12,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:50:12,905 INFO L495 AbstractCegarLoop]: Abstraction has 1577 states and 2237 transitions. [2022-10-17 10:50:12,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:50:12,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2237 transitions. [2022-10-17 10:50:12,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 10:50:12,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:50:12,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:50:12,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:50:12,908 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:50:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:50:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1231327051, now seen corresponding path program 1 times [2022-10-17 10:50:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:50:12,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928557498] [2022-10-17 10:50:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:50:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:50:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:50:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:15,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:50:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:50:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:50:15,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:50:15,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928557498] [2022-10-17 10:50:15,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928557498] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:50:15,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:50:15,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:50:15,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916674566] [2022-10-17 10:50:15,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:50:15,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:50:15,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:50:15,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:50:15,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:50:15,465 INFO L87 Difference]: Start difference. First operand 1577 states and 2237 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)