./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--ttusb-dec--ttusb_dec.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_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/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_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/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--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/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_343d2713-c4ec-4083-8df7-1f93e252545a/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 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d --- 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 10:32:47,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:32:47,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:32:47,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:32:47,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:32:47,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:32:47,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:32:47,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:32:47,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:32:47,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:32:47,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:32:47,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:32:47,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:32:47,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:32:47,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:32:47,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:32:47,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:32:47,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:32:47,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:32:47,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:32:47,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:32:47,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:32:47,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:32:47,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:32:47,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:32:47,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:32:47,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:32:47,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:32:47,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:32:47,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:32:47,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:32:47,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:32:47,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:32:47,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:32:47,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:32:47,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:32:47,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:32:47,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:32:47,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:32:47,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:32:47,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:32:47,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:32:47,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:32:47,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:32:47,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:32:47,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:32:47,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:32:47,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:32:47,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:32:47,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:32:47,886 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:32:47,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:32:47,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:32:47,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:32:47,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:32:47,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:32:47,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:32:47,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:32:47,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:32:47,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:32:47,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:32:47,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:32:47,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:32:47,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:32:47,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:32:47,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:32:47,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:32:47,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:32:47,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:32:47,891 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:32:47,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:32:47,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:32:47,892 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_343d2713-c4ec-4083-8df7-1f93e252545a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d [2022-10-17 10:32:48,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:32:48,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:32:48,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:32:48,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:32:48,210 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:32:48,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-10-17 10:32:48,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/data/6ff41f254/443a58ee1310412f9777895dbeba56d2/FLAGf45e4b82a [2022-10-17 10:32:49,222 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:32:49,223 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-10-17 10:32:49,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/data/6ff41f254/443a58ee1310412f9777895dbeba56d2/FLAGf45e4b82a [2022-10-17 10:32:49,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/data/6ff41f254/443a58ee1310412f9777895dbeba56d2 [2022-10-17 10:32:49,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:32:49,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:32:49,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:32:49,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:32:49,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:32:49,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:32:49" (1/1) ... [2022-10-17 10:32:49,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1039224e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:49, skipping insertion in model container [2022-10-17 10:32:49,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:32:49" (1/1) ... [2022-10-17 10:32:49,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:32:49,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:32:50,919 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_343d2713-c4ec-4083-8df7-1f93e252545a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-10-17 10:32:51,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:32:51,654 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:32:51,913 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_343d2713-c4ec-4083-8df7-1f93e252545a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-10-17 10:32:52,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:32:52,253 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:32:52,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52 WrapperNode [2022-10-17 10:32:52,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:32:52,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:32:52,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:32:52,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:32:52,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,552 INFO L138 Inliner]: procedures = 201, calls = 1494, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2632 [2022-10-17 10:32:52,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:32:52,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:32:52,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:32:52,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:32:52,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:32:52,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:32:52,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:32:52,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:32:52,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (1/1) ... [2022-10-17 10:32:52,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:32:52,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:32:52,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:32:52,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_343d2713-c4ec-4083-8df7-1f93e252545a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:32:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-17 10:32:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-17 10:32:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-10-17 10:32:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-10-17 10:32:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2022-10-17 10:32:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2022-10-17 10:32:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:32:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:32:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:32:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:32:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-10-17 10:32:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-10-17 10:32:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-10-17 10:32:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-10-17 10:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-17 10:32:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-17 10:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-10-17 10:32:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-10-17 10:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:32:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:32:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2022-10-17 10:32:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2022-10-17 10:32:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-17 10:32:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-17 10:32:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-10-17 10:32:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-10-17 10:32:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-10-17 10:32:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-10-17 10:32:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:32:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:32:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:32:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:32:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:32:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:32:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:32:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:32:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-10-17 10:32:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-10-17 10:32:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-17 10:32:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-17 10:32:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:32:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:32:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2022-10-17 10:32:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2022-10-17 10:32:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:32:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-10-17 10:32:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-10-17 10:32:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 10:32:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 10:32:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:32:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:32:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:32:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2022-10-17 10:32:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2022-10-17 10:32:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:32:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:32:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-10-17 10:32:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-10-17 10:32:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-17 10:32:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-17 10:32:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-17 10:32:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-17 10:32:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2022-10-17 10:32:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2022-10-17 10:32:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:32:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:32:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:32:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:32:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 10:32:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 10:32:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-10-17 10:32:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-10-17 10:32:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 10:32:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 10:32:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-10-17 10:32:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-10-17 10:32:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-17 10:32:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-17 10:32:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-10-17 10:32:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-10-17 10:32:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-10-17 10:32:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-10-17 10:32:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-10-17 10:32:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-10-17 10:32:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:32:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:32:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:32:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 10:32:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 10:32:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:32:52,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:32:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:32:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-10-17 10:32:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-10-17 10:32:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2022-10-17 10:32:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2022-10-17 10:32:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-10-17 10:32:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-10-17 10:32:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-10-17 10:32:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-10-17 10:32:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-10-17 10:32:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-10-17 10:32:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-10-17 10:32:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-10-17 10:32:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:32:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:32:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:32:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 10:32:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 10:32:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 10:32:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 10:32:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:32:52,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:32:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-17 10:32:52,963 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-17 10:32:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-10-17 10:32:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-10-17 10:32:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:32:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-10-17 10:32:52,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-10-17 10:32:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-10-17 10:32:52,968 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-10-17 10:32:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:32:52,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-10-17 10:32:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-10-17 10:32:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-10-17 10:32:52,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-10-17 10:32:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:32:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:32:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:32:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2022-10-17 10:32:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2022-10-17 10:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-10-17 10:32:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-10-17 10:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:32:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-10-17 10:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-10-17 10:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2022-10-17 10:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2022-10-17 10:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-17 10:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-17 10:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:32:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:32:53,870 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:32:53,878 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:32:54,322 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:32:59,883 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-17 10:33:00,346 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:33:00,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:33:00,363 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:33:00,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:33:00 BoogieIcfgContainer [2022-10-17 10:33:00,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:33:00,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:33:00,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:33:00,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:33:00,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:32:49" (1/3) ... [2022-10-17 10:33:00,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a025f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:33:00, skipping insertion in model container [2022-10-17 10:33:00,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:32:52" (2/3) ... [2022-10-17 10:33:00,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a025f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:33:00, skipping insertion in model container [2022-10-17 10:33:00,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:33:00" (3/3) ... [2022-10-17 10:33:00,380 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-10-17 10:33:00,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:33:00,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:33:00,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:33:00,534 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;@7d1fed1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:33:00,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:33:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 1076 states, 777 states have (on average 1.3384813384813385) internal successors, (1040), 804 states have internal predecessors, (1040), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) [2022-10-17 10:33:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 10:33:00,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:33:00,560 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:33:00,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:33:00,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:33:00,568 INFO L85 PathProgramCache]: Analyzing trace with hash 303000669, now seen corresponding path program 1 times [2022-10-17 10:33:00,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:33:00,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252198837] [2022-10-17 10:33:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:33:00,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:33:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:33:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:33:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:33:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:33:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:33:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-17 10:33:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:01,503 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:33:01,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:33:01,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252198837] [2022-10-17 10:33:01,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252198837] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:33:01,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:33:01,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:33:01,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687596437] [2022-10-17 10:33:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:33:01,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:33:01,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:33:01,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:33:01,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:33:01,552 INFO L87 Difference]: Start difference. First operand has 1076 states, 777 states have (on average 1.3384813384813385) internal successors, (1040), 804 states have internal predecessors, (1040), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-17 10:33:05,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:33:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:33:12,557 INFO L93 Difference]: Finished difference Result 3572 states and 5251 transitions. [2022-10-17 10:33:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:33:12,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-10-17 10:33:12,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:33:12,603 INFO L225 Difference]: With dead ends: 3572 [2022-10-17 10:33:12,604 INFO L226 Difference]: Without dead ends: 2475 [2022-10-17 10:33:12,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 10:33:12,627 INFO L413 NwaCegarLoop]: 1638 mSDtfsCounter, 2980 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 1419 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3141 SdHoareTripleChecker+Valid, 4007 SdHoareTripleChecker+Invalid, 3341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1419 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:33:12,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3141 Valid, 4007 Invalid, 3341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1419 Valid, 1921 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-10-17 10:33:12,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2022-10-17 10:33:12,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2044. [2022-10-17 10:33:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2044 states, 1490 states have (on average 1.3187919463087248) internal successors, (1965), 1524 states have internal predecessors, (1965), 424 states have call successors, (424), 130 states have call predecessors, (424), 129 states have return successors, (419), 403 states have call predecessors, (419), 419 states have call successors, (419) [2022-10-17 10:33:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 2808 transitions. [2022-10-17 10:33:12,897 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 2808 transitions. Word has length 52 [2022-10-17 10:33:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:33:12,898 INFO L495 AbstractCegarLoop]: Abstraction has 2044 states and 2808 transitions. [2022-10-17 10:33:12,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-17 10:33:12,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 2808 transitions. [2022-10-17 10:33:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-17 10:33:12,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:33:12,902 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:33:12,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:33:12,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:33:12,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:33:12,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2056314414, now seen corresponding path program 1 times [2022-10-17 10:33:12,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:33:12,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676474497] [2022-10-17 10:33:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:33:12,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:33:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:33:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:33:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:33:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:33:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:33:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-17 10:33:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:33:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 10:33:13,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:33:13,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676474497] [2022-10-17 10:33:13,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676474497] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:33:13,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:33:13,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:33:13,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050654207] [2022-10-17 10:33:13,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:33:13,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:33:13,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:33:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:33:13,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:33:13,282 INFO L87 Difference]: Start difference. First operand 2044 states and 2808 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-17 10:33:16,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []