./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.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_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/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_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/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_974ac701-01db-4817-8d01-fdbd69547938/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 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 --- 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 11:06:33,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:06:33,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:06:33,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:06:33,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:06:33,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:06:33,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:06:33,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:06:33,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:06:33,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:06:33,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:06:33,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:06:33,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:06:33,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:06:33,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:06:33,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:06:33,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:06:33,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:06:33,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:06:33,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:06:33,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:06:33,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:06:33,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:06:33,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:06:33,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:06:33,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:06:33,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:06:33,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:06:33,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:06:33,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:06:33,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:06:33,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:06:33,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:06:33,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:06:33,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:06:33,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:06:33,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:06:33,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:06:33,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:06:33,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:06:33,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:06:33,823 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:06:33,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:06:33,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:06:33,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:06:33,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:06:33,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:06:33,862 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:06:33,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:06:33,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:06:33,863 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:06:33,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:06:33,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:06:33,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:06:33,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:06:33,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:06:33,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:06:33,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:06:33,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:06:33,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:06:33,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:06:33,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:06:33,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:06:33,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:33,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:06:33,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:06:33,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:06:33,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:06:33,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:06:33,872 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:06:33,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:06:33,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:06:33,876 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_974ac701-01db-4817-8d01-fdbd69547938/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 [2022-10-17 11:06:34,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:06:34,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:06:34,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:06:34,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:06:34,291 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:06:34,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-10-17 11:06:34,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/data/57aaf8691/875d6a6151d840ba98979ca05cbec164/FLAG880a42a26 [2022-10-17 11:06:35,536 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:06:35,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-10-17 11:06:35,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/data/57aaf8691/875d6a6151d840ba98979ca05cbec164/FLAG880a42a26 [2022-10-17 11:06:35,775 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/data/57aaf8691/875d6a6151d840ba98979ca05cbec164 [2022-10-17 11:06:35,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:06:35,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:06:35,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:35,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:06:35,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:06:35,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:35" (1/1) ... [2022-10-17 11:06:35,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d2ce28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:35, skipping insertion in model container [2022-10-17 11:06:35,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:35" (1/1) ... [2022-10-17 11:06:35,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:06:35,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:06:36,654 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-10-17 11:06:37,265 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_974ac701-01db-4817-8d01-fdbd69547938/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i[155153,155166] [2022-10-17 11:06:38,445 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-17 11:06:38,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:38,567 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:06:38,725 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-10-17 11:06:38,754 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_974ac701-01db-4817-8d01-fdbd69547938/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i[155153,155166] [2022-10-17 11:06:39,279 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-17 11:06:39,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:39,388 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:06:39,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39 WrapperNode [2022-10-17 11:06:39,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:39,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:39,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:06:39,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:06:39,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:39,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:39,755 INFO L138 Inliner]: procedures = 242, calls = 2936, calls flagged for inlining = 95, calls inlined = 71, statements flattened = 4044 [2022-10-17 11:06:39,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:39,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:06:39,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:06:39,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:06:39,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:39,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:39,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:39,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:40,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:40,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:40,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:40,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:40,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:06:40,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:06:40,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:06:40,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:06:40,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (1/1) ... [2022-10-17 11:06:40,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:40,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:06:40,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:06:40,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_974ac701-01db-4817-8d01-fdbd69547938/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:06:40,241 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-17 11:06:40,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-17 11:06:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2022-10-17 11:06:40,242 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2022-10-17 11:06:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2022-10-17 11:06:40,244 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2022-10-17 11:06:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 11:06:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 11:06:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 11:06:40,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 11:06:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-10-17 11:06:40,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-10-17 11:06:40,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-17 11:06:40,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-17 11:06:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2022-10-17 11:06:40,247 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2022-10-17 11:06:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2022-10-17 11:06:40,248 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2022-10-17 11:06:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-10-17 11:06:40,248 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-10-17 11:06:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 11:06:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 11:06:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2022-10-17 11:06:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2022-10-17 11:06:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-10-17 11:06:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-10-17 11:06:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 11:06:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 11:06:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-17 11:06:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-17 11:06:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-10-17 11:06:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-10-17 11:06:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2022-10-17 11:06:40,251 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2022-10-17 11:06:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2022-10-17 11:06:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2022-10-17 11:06:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-10-17 11:06:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-10-17 11:06:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-10-17 11:06:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-10-17 11:06:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2022-10-17 11:06:40,253 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2022-10-17 11:06:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 11:06:40,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 11:06:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 11:06:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 11:06:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2022-10-17 11:06:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2022-10-17 11:06:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-17 11:06:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-17 11:06:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 11:06:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 11:06:40,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 11:06:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 11:06:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 11:06:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 11:06:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2022-10-17 11:06:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2022-10-17 11:06:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure bulk_irq [2022-10-17 11:06:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure bulk_irq [2022-10-17 11:06:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-17 11:06:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-17 11:06:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-10-17 11:06:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-10-17 11:06:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-10-17 11:06:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-10-17 11:06:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:06:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-10-17 11:06:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-10-17 11:06:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-10-17 11:06:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-10-17 11:06:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:06:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-10-17 11:06:40,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-10-17 11:06:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 11:06:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-10-17 11:06:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-10-17 11:06:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_and_submit_int_urb [2022-10-17 11:06:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_and_submit_int_urb [2022-10-17 11:06:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-17 11:06:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-17 11:06:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 11:06:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 11:06:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-10-17 11:06:40,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-10-17 11:06:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2022-10-17 11:06:40,266 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2022-10-17 11:06:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-10-17 11:06:40,267 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-10-17 11:06:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:06:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:06:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure fill_frame [2022-10-17 11:06:40,268 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_frame [2022-10-17 11:06:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2022-10-17 11:06:40,269 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2022-10-17 11:06:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2022-10-17 11:06:40,269 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2022-10-17 11:06:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 11:06:40,270 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 11:06:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 11:06:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 11:06:40,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 11:06:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure isoc_irq [2022-10-17 11:06:40,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isoc_irq [2022-10-17 11:06:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-10-17 11:06:40,271 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-10-17 11:06:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2022-10-17 11:06:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2022-10-17 11:06:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2022-10-17 11:06:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2022-10-17 11:06:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-10-17 11:06:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-10-17 11:06:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-10-17 11:06:40,273 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2022-10-17 11:06:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 11:06:40,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-10-17 11:06:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-10-17 11:06:40,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-10-17 11:06:40,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-10-17 11:06:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-10-17 11:06:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-10-17 11:06:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2022-10-17 11:06:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2022-10-17 11:06:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2022-10-17 11:06:40,286 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2022-10-17 11:06:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:06:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 11:06:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 11:06:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 11:06:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 11:06:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 11:06:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 11:06:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-10-17 11:06:40,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-10-17 11:06:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-10-17 11:06:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-10-17 11:06:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 11:06:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 11:06:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:06:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 11:06:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 11:06:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-10-17 11:06:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-10-17 11:06:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:06:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2022-10-17 11:06:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2022-10-17 11:06:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:06:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-10-17 11:06:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-10-17 11:06:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 11:06:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 11:06:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:06:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 11:06:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2022-10-17 11:06:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2022-10-17 11:06:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:06:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:06:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 11:06:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 11:06:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-10-17 11:06:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-10-17 11:06:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2022-10-17 11:06:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2022-10-17 11:06:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2022-10-17 11:06:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2022-10-17 11:06:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 11:06:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 11:06:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-10-17 11:06:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-10-17 11:06:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 11:06:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 11:06:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-10-17 11:06:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-10-17 11:06:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-17 11:06:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-17 11:06:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:06:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 11:06:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 11:06:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2022-10-17 11:06:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2022-10-17 11:06:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:06:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:06:41,266 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:06:41,270 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:06:41,466 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 11:06:43,376 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-17 11:06:46,123 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:06:46,152 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:06:46,153 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:06:46,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:46 BoogieIcfgContainer [2022-10-17 11:06:46,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:06:46,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:06:46,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:06:46,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:06:46,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:06:35" (1/3) ... [2022-10-17 11:06:46,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617cf2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:46, skipping insertion in model container [2022-10-17 11:06:46,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:39" (2/3) ... [2022-10-17 11:06:46,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617cf2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:46, skipping insertion in model container [2022-10-17 11:06:46,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:46" (3/3) ... [2022-10-17 11:06:46,176 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-10-17 11:06:46,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:06:46,201 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:06:46,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:06:46,334 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;@12eae7d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:06:46,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:06:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 1436 states, 1067 states have (on average 1.415182755388941) internal successors, (1510), 1095 states have internal predecessors, (1510), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) [2022-10-17 11:06:46,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-10-17 11:06:46,384 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:46,386 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:46,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:06:46,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:46,394 INFO L85 PathProgramCache]: Analyzing trace with hash -984320848, now seen corresponding path program 1 times [2022-10-17 11:06:46,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:46,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412130499] [2022-10-17 11:06:46,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:46,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:06:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 11:06:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 11:06:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 11:06:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 11:06:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 11:06:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 11:06:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 11:06:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:06:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 11:06:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 11:06:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 11:06:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 11:06:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 11:06:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 11:06:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 11:06:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:06:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 11:06:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-17 11:06:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 11:06:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 11:06:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 11:06:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 11:06:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-17 11:06:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 11:06:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-17 11:06:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-17 11:06:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-17 11:06:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-17 11:06:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-17 11:06:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-17 11:06:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-17 11:06:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-17 11:06:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-17 11:06:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-17 11:06:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-17 11:06:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-17 11:06:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-10-17 11:06:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-10-17 11:06:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-17 11:06:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-10-17 11:06:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-17 11:06:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3124 trivial. 0 not checked. [2022-10-17 11:06:48,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:06:48,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412130499] [2022-10-17 11:06:48,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412130499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:48,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:48,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:06:48,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794059428] [2022-10-17 11:06:48,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:48,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:06:48,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:06:48,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:06:48,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:06:48,640 INFO L87 Difference]: Start difference. First operand has 1436 states, 1067 states have (on average 1.415182755388941) internal successors, (1510), 1095 states have internal predecessors, (1510), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-10-17 11:06:58,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:06:58,601 INFO L93 Difference]: Finished difference Result 5216 states and 8115 transitions. [2022-10-17 11:06:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:06:58,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2022-10-17 11:06:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:06:58,696 INFO L225 Difference]: With dead ends: 5216 [2022-10-17 11:06:58,696 INFO L226 Difference]: Without dead ends: 3761 [2022-10-17 11:06:58,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 11:06:58,732 INFO L413 NwaCegarLoop]: 2087 mSDtfsCounter, 5159 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 1997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 5514 SdHoareTripleChecker+Invalid, 4711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1997 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:06:58,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5384 Valid, 5514 Invalid, 4711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1997 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-10-17 11:06:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2022-10-17 11:06:59,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 2713. [2022-10-17 11:06:59,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2713 states, 2051 states have (on average 1.401267674305217) internal successors, (2874), 2085 states have internal predecessors, (2874), 504 states have call successors, (504), 158 states have call predecessors, (504), 157 states have return successors, (499), 487 states have call predecessors, (499), 499 states have call successors, (499) [2022-10-17 11:06:59,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2713 states to 2713 states and 3877 transitions. [2022-10-17 11:06:59,168 INFO L78 Accepts]: Start accepts. Automaton has 2713 states and 3877 transitions. Word has length 267 [2022-10-17 11:06:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:06:59,172 INFO L495 AbstractCegarLoop]: Abstraction has 2713 states and 3877 transitions. [2022-10-17 11:06:59,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-10-17 11:06:59,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2713 states and 3877 transitions. [2022-10-17 11:06:59,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-10-17 11:06:59,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:59,189 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:59,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:06:59,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:06:59,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1051859172, now seen corresponding path program 1 times [2022-10-17 11:06:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:59,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52770312] [2022-10-17 11:06:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:59,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:06:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 11:06:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 11:06:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 11:06:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 11:06:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 11:06:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 11:06:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:59,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 11:07:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:07:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 11:07:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 11:07:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 11:07:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 11:07:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 11:07:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 11:07:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 11:07:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:07:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 11:07:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-17 11:07:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 11:07:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 11:07:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 11:07:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 11:07:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-17 11:07:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 11:07:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-17 11:07:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-17 11:07:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-17 11:07:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-17 11:07:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-17 11:07:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-10-17 11:07:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-17 11:07:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-17 11:07:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-17 11:07:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-17 11:07:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-17 11:07:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-17 11:07:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-10-17 11:07:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-10-17 11:07:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-17 11:07:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-10-17 11:07:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-10-17 11:07:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3124 trivial. 0 not checked. [2022-10-17 11:07:00,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:00,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52770312] [2022-10-17 11:07:00,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52770312] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:00,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:00,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:07:00,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297287660] [2022-10-17 11:07:00,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:00,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:07:00,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:00,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:07:00,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:07:00,488 INFO L87 Difference]: Start difference. First operand 2713 states and 3877 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)