./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.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_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/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_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/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_726bb5c9-aca5-4d89-8607-f1fd7e00b559/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 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 --- 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 10:20:47,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:20:47,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:20:47,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:20:47,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:20:47,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:20:47,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:20:47,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:20:47,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:20:47,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:20:47,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:20:47,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:20:47,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:20:47,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:20:47,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:20:47,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:20:47,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:20:47,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:20:47,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:20:47,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:20:47,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:20:47,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:20:47,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:20:47,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:20:47,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:20:47,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:20:47,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:20:47,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:20:47,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:20:47,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:20:47,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:20:47,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:20:47,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:20:47,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:20:47,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:20:47,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:20:47,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:20:47,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:20:47,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:20:47,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:20:47,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:20:47,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:20:47,929 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:20:47,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:20:47,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:20:47,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:20:47,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:20:47,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:20:47,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:20:47,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:20:47,932 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:20:47,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:20:47,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:20:47,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:20:47,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:20:47,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:20:47,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:20:47,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:20:47,933 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:20:47,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:20:47,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:20:47,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:20:47,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:20:47,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:20:47,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:20:47,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:20:47,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:20:47,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:20:47,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:20:47,936 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:20:47,936 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:20:47,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:20:47,937 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_726bb5c9-aca5-4d89-8607-f1fd7e00b559/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 [2022-10-17 10:20:48,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:20:48,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:20:48,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:20:48,217 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:20:48,218 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:20:48,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-10-17 10:20:48,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/data/a8cc641bc/8f590c4cea7c4fcab57270879fb22815/FLAGa3ea2f473 [2022-10-17 10:20:49,285 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:20:49,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-10-17 10:20:49,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/data/a8cc641bc/8f590c4cea7c4fcab57270879fb22815/FLAGa3ea2f473 [2022-10-17 10:20:49,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/data/a8cc641bc/8f590c4cea7c4fcab57270879fb22815 [2022-10-17 10:20:49,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:20:49,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:20:49,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:49,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:20:49,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:20:49,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:49" (1/1) ... [2022-10-17 10:20:49,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23cf30ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:49, skipping insertion in model container [2022-10-17 10:20:49,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:49" (1/1) ... [2022-10-17 10:20:49,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:20:49,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:20:51,022 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_726bb5c9-aca5-4d89-8607-f1fd7e00b559/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-10-17 10:20:51,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:51,766 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:20:51,966 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_726bb5c9-aca5-4d89-8607-f1fd7e00b559/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-10-17 10:20:52,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:52,210 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:20:52,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52 WrapperNode [2022-10-17 10:20:52,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:52,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:52,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:20:52,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:20:52,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,442 INFO L138 Inliner]: procedures = 175, calls = 709, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1874 [2022-10-17 10:20:52,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:52,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:20:52,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:20:52,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:20:52,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:20:52,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:20:52,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:20:52,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:20:52,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (1/1) ... [2022-10-17 10:20:52,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:20:52,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:52,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:52,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726bb5c9-aca5-4d89-8607-f1fd7e00b559/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:20:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2022-10-17 10:20:52,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2022-10-17 10:20:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:20:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:20:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2022-10-17 10:20:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2022-10-17 10:20:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:20:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-17 10:20:52,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-17 10:20:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-17 10:20:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-17 10:20:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:20:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:20:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:20:52,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:20:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:20:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-10-17 10:20:52,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-10-17 10:20:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2022-10-17 10:20:52,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2022-10-17 10:20:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2022-10-17 10:20:52,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2022-10-17 10:20:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-17 10:20:52,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-17 10:20:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 10:20:52,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 10:20:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:20:52,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:20:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2022-10-17 10:20:52,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2022-10-17 10:20:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-17 10:20:52,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-17 10:20:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:20:52,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:20:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2022-10-17 10:20:52,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2022-10-17 10:20:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:20:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2022-10-17 10:20:52,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2022-10-17 10:20:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-17 10:20:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-17 10:20:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:20:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:20:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2022-10-17 10:20:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2022-10-17 10:20:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2022-10-17 10:20:52,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2022-10-17 10:20:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2022-10-17 10:20:52,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2022-10-17 10:20:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2022-10-17 10:20:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2022-10-17 10:20:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-10-17 10:20:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:20:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:20:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:20:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:20:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2022-10-17 10:20:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2022-10-17 10:20:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:20:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2022-10-17 10:20:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2022-10-17 10:20:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:20:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:20:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2022-10-17 10:20:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2022-10-17 10:20:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:20:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2022-10-17 10:20:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2022-10-17 10:20:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2022-10-17 10:20:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2022-10-17 10:20:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:20:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:20:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 10:20:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 10:20:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:20:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 10:20:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 10:20:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-17 10:20:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-17 10:20:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2022-10-17 10:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2022-10-17 10:20:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-10-17 10:20:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2022-10-17 10:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2022-10-17 10:20:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 10:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 10:20:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:20:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-10-17 10:20:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-10-17 10:20:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:20:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:20:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2022-10-17 10:20:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2022-10-17 10:20:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:20:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:20:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2022-10-17 10:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2022-10-17 10:20:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 10:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 10:20:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-10-17 10:20:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-10-17 10:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-17 10:20:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-17 10:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2022-10-17 10:20:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2022-10-17 10:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-17 10:20:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-17 10:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-17 10:20:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-17 10:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-10-17 10:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:20:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:20:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:20:53,504 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:20:53,510 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:20:53,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:20:56,839 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:20:56,867 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:20:56,869 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 10:20:56,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:56 BoogieIcfgContainer [2022-10-17 10:20:56,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:20:56,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:20:56,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:20:56,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:20:56,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:20:49" (1/3) ... [2022-10-17 10:20:56,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a8a879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:20:56, skipping insertion in model container [2022-10-17 10:20:56,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:52" (2/3) ... [2022-10-17 10:20:56,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a8a879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:20:56, skipping insertion in model container [2022-10-17 10:20:56,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:56" (3/3) ... [2022-10-17 10:20:56,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-10-17 10:20:56,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:20:56,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:20:57,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:20:57,068 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;@27f45779, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:20:57,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:20:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 732 states, 523 states have (on average 1.349904397705545) internal successors, (706), 537 states have internal predecessors, (706), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-10-17 10:20:57,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-17 10:20:57,116 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:20:57,117 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2022-10-17 10:20:57,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:20:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:57,127 INFO L85 PathProgramCache]: Analyzing trace with hash 127676684, now seen corresponding path program 1 times [2022-10-17 10:20:57,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:57,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282584547] [2022-10-17 10:20:57,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:57,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:20:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:20:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:20:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:20:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:20:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:20:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:20:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:20:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:20:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:20:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:20:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-17 10:20:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:20:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-10-17 10:20:58,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:58,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282584547] [2022-10-17 10:20:58,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282584547] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:58,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:58,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:20:58,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277900293] [2022-10-17 10:20:58,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:58,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:20:58,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:58,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:20:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:20:58,422 INFO L87 Difference]: Start difference. First operand has 732 states, 523 states have (on average 1.349904397705545) internal successors, (706), 537 states have internal predecessors, (706), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-17 10:21:00,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:21:05,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:21:05,897 INFO L93 Difference]: Finished difference Result 2407 states and 3536 transitions. [2022-10-17 10:21:05,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:21:05,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2022-10-17 10:21:05,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:21:05,946 INFO L225 Difference]: With dead ends: 2407 [2022-10-17 10:21:05,948 INFO L226 Difference]: Without dead ends: 1664 [2022-10-17 10:21:05,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 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 10:21:05,968 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 1870 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 972 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:21:05,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 2669 Invalid, 2279 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [972 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-10-17 10:21:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-10-17 10:21:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1392. [2022-10-17 10:21:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1003 states have (on average 1.3339980059820538) internal successors, (1338), 1019 states have internal predecessors, (1338), 292 states have call successors, (292), 97 states have call predecessors, (292), 96 states have return successors, (291), 291 states have call predecessors, (291), 291 states have call successors, (291) [2022-10-17 10:21:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1921 transitions. [2022-10-17 10:21:06,274 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1921 transitions. Word has length 96 [2022-10-17 10:21:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:21:06,275 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1921 transitions. [2022-10-17 10:21:06,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-17 10:21:06,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1921 transitions. [2022-10-17 10:21:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-17 10:21:06,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:21:06,287 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2022-10-17 10:21:06,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:21:06,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:21:06,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:21:06,288 INFO L85 PathProgramCache]: Analyzing trace with hash -600740709, now seen corresponding path program 1 times [2022-10-17 10:21:06,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:21:06,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298856595] [2022-10-17 10:21:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:21:06,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:21:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:21:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:21:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:21:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:21:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:21:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:21:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:21:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:21:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:21:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:21:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:21:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-17 10:21:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:21:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:21:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:07,180 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-10-17 10:21:07,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:21:07,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298856595] [2022-10-17 10:21:07,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298856595] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:21:07,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:21:07,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:21:07,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295286751] [2022-10-17 10:21:07,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:21:07,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:21:07,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:21:07,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:21:07,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:21:07,188 INFO L87 Difference]: Start difference. First operand 1392 states and 1921 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-17 10:21:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:21:13,068 INFO L93 Difference]: Finished difference Result 4647 states and 6600 transitions. [2022-10-17 10:21:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:21:13,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2022-10-17 10:21:13,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:21:13,103 INFO L225 Difference]: With dead ends: 4647 [2022-10-17 10:21:13,104 INFO L226 Difference]: Without dead ends: 3279 [2022-10-17 10:21:13,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:21:13,122 INFO L413 NwaCegarLoop]: 1045 mSDtfsCounter, 1905 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 950 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 4063 SdHoareTripleChecker+Invalid, 3257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 950 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:21:13,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 4063 Invalid, 3257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [950 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-10-17 10:21:13,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-10-17 10:21:13,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2781. [2022-10-17 10:21:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 2006 states have (on average 1.335493519441675) internal successors, (2679), 2042 states have internal predecessors, (2679), 574 states have call successors, (574), 193 states have call predecessors, (574), 200 states have return successors, (613), 575 states have call predecessors, (613), 573 states have call successors, (613) [2022-10-17 10:21:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3866 transitions. [2022-10-17 10:21:13,382 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3866 transitions. Word has length 107 [2022-10-17 10:21:13,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:21:13,385 INFO L495 AbstractCegarLoop]: Abstraction has 2781 states and 3866 transitions. [2022-10-17 10:21:13,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-17 10:21:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3866 transitions. [2022-10-17 10:21:13,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-17 10:21:13,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:21:13,438 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-17 10:21:13,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:21:13,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:21:13,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:21:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1193824511, now seen corresponding path program 1 times [2022-10-17 10:21:13,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:21:13,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086818958] [2022-10-17 10:21:13,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:21:13,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:21:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:21:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:21:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:21:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:21:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:21:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:21:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:21:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:21:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:21:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:21:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:21:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-17 10:21:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:21:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:21:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-17 10:21:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:21:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:21:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-17 10:21:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:21:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:21:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:21:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:21:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:21:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:21:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:21:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-17 10:21:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-10-17 10:21:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:21:14,399 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-17 10:21:14,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:21:14,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086818958] [2022-10-17 10:21:14,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086818958] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:21:14,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:21:14,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:21:14,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28411731] [2022-10-17 10:21:14,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:21:14,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:21:14,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:21:14,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:21:14,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:21:14,406 INFO L87 Difference]: Start difference. First operand 2781 states and 3866 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-10-17 10:21:15,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []