./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX --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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:45:22,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:45:22,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:45:22,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:45:22,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:45:22,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:45:22,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:45:22,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:45:22,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:45:22,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:45:22,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:45:22,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:45:22,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:45:22,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:45:22,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:45:22,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:45:22,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:45:22,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:45:22,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:45:22,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:45:22,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:45:22,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:45:22,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:45:22,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:45:22,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:45:22,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:45:22,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:45:22,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:45:22,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:45:22,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:45:22,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:45:22,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:45:22,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:45:22,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:45:22,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:45:22,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:45:22,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:45:22,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:45:22,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:45:22,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:45:22,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:45:22,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 10:45:23,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:45:23,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:45:23,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:45:23,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:45:23,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:45:23,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:45:23,023 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:45:23,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:45:23,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:45:23,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:45:23,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:45:23,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:45:23,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:45:23,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:45:23,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:45:23,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:45:23,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:45:23,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:45:23,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:45:23,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:45:23,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:45:23,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:45:23,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:45:23,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:45:23,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:45:23,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:45:23,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:45:23,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:45:23,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:45:23,029 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-09 10:45:23,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:45:23,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:45:23,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:45:23,324 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:45:23,325 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:45:23,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-09 10:45:23,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/data/9fbb59765/56692883d74c4a5788ebc82ab1ac4c5f/FLAGb41f2fb0a [2021-11-09 10:45:24,458 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:45:24,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-09 10:45:24,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/data/9fbb59765/56692883d74c4a5788ebc82ab1ac4c5f/FLAGb41f2fb0a [2021-11-09 10:45:24,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/data/9fbb59765/56692883d74c4a5788ebc82ab1ac4c5f [2021-11-09 10:45:24,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:45:24,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:45:24,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:45:24,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:45:24,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:45:24,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:24" (1/1) ... [2021-11-09 10:45:24,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9910aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:24, skipping insertion in model container [2021-11-09 10:45:24,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:24" (1/1) ... [2021-11-09 10:45:24,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:45:25,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:45:29,143 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-09 10:45:29,147 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-09 10:45:29,147 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-09 10:45:29,148 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-09 10:45:29,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:45:29,288 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:45:29,772 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-09 10:45:29,773 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-09 10:45:29,774 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-09 10:45:29,774 WARN L228 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_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-09 10:45:29,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:45:30,034 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:45:30,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30 WrapperNode [2021-11-09 10:45:30,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:45:30,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:45:30,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:45:30,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:45:30,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:30,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:35,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:45:35,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:45:35,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:45:35,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:45:35,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:35,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:35,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:35,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:38,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:38,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:38,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:40,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:45:40,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:45:40,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:45:40,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:45:40,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (1/1) ... [2021-11-09 10:45:40,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:45:40,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:40,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:40,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9261e20-9d6c-41f9-9f55-8fd60cf50f17/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:45:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:45:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 10:45:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 10:45:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:45:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:45:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:45:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:45:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:45:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:45:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:45:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 10:45:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 10:45:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-09 10:45:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-09 10:45:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:45:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:45:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 10:45:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:45:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-09 10:45:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:46:34,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-09 10:46:34,904 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-09 10:46:34,904 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-09 10:46:34,904 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,906 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,907 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,907 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,907 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-09 10:46:34,910 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-09 10:46:34,913 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-09 10:46:35,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:46:35,014 INFO L299 CfgBuilder]: Removed 30415 assume(true) statements. [2021-11-09 10:46:35,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:46:35 BoogieIcfgContainer [2021-11-09 10:46:35,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:46:35,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:46:35,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:46:35,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:46:35,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:45:24" (1/3) ... [2021-11-09 10:46:35,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696aa92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:46:35, skipping insertion in model container [2021-11-09 10:46:35,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:30" (2/3) ... [2021-11-09 10:46:35,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696aa92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:46:35, skipping insertion in model container [2021-11-09 10:46:35,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:46:35" (3/3) ... [2021-11-09 10:46:35,046 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-09 10:46:35,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:46:35,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2021-11-09 10:46:35,190 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:46:35,197 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 10:46:35,197 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-11-09 10:46:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 17266 states, 17202 states have (on average 1.219625624927334) internal successors, (20980), 17251 states have internal predecessors, (20980), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-09 10:46:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-09 10:46:35,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:46:35,509 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:46:35,510 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-09 10:46:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:46:35,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1200985652, now seen corresponding path program 1 times [2021-11-09 10:46:35,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:46:35,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350204437] [2021-11-09 10:46:35,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:46:35,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:46:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:46:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:46:36,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:46:36,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350204437] [2021-11-09 10:46:36,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350204437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:46:36,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:46:36,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:46:36,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113532767] [2021-11-09 10:46:36,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:46:36,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:46:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:46:37,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:46:37,052 INFO L87 Difference]: Start difference. First operand has 17266 states, 17202 states have (on average 1.219625624927334) internal successors, (20980), 17251 states have internal predecessors, (20980), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:46:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:46:41,292 INFO L93 Difference]: Finished difference Result 50860 states and 61838 transitions. [2021-11-09 10:46:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:46:41,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-09 10:46:41,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:46:41,596 INFO L225 Difference]: With dead ends: 50860 [2021-11-09 10:46:41,597 INFO L226 Difference]: Without dead ends: 33530 [2021-11-09 10:46:41,763 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:46:41,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33530 states. [2021-11-09 10:46:43,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33530 to 33504. [2021-11-09 10:46:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33504 states, 33425 states have (on average 1.2017352281226628) internal successors, (40168), 33475 states have internal predecessors, (40168), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-09 10:46:43,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33504 states to 33504 states and 40220 transitions. [2021-11-09 10:46:43,710 INFO L78 Accepts]: Start accepts. Automaton has 33504 states and 40220 transitions. Word has length 126 [2021-11-09 10:46:43,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:46:43,713 INFO L470 AbstractCegarLoop]: Abstraction has 33504 states and 40220 transitions. [2021-11-09 10:46:43,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:46:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 33504 states and 40220 transitions. [2021-11-09 10:46:43,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-09 10:46:43,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:46:43,722 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:46:43,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:46:43,723 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-09 10:46:43,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:46:43,727 INFO L85 PathProgramCache]: Analyzing trace with hash -289314059, now seen corresponding path program 1 times [2021-11-09 10:46:43,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:46:43,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578247716] [2021-11-09 10:46:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:46:43,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:46:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:46:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:46:44,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:46:44,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578247716] [2021-11-09 10:46:44,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578247716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:46:44,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:46:44,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:46:44,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907129965] [2021-11-09 10:46:44,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:46:44,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:46:44,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:46:44,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:46:44,306 INFO L87 Difference]: Start difference. First operand 33504 states and 40220 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:46:49,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:46:49,317 INFO L93 Difference]: Finished difference Result 99056 states and 118893 transitions. [2021-11-09 10:46:49,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:46:49,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-09 10:46:49,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:46:49,683 INFO L225 Difference]: With dead ends: 99056 [2021-11-09 10:46:49,691 INFO L226 Difference]: Without dead ends: 65844 [2021-11-09 10:46:50,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:46:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65844 states. [2021-11-09 10:46:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65844 to 65576. [2021-11-09 10:46:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65576 states, 65469 states have (on average 1.2007515007102598) internal successors, (78612), 65523 states have internal predecessors, (78612), 52 states have call successors, (52), 8 states have call predecessors, (52), 6 states have return successors, (74), 46 states have call predecessors, (74), 52 states have call successors, (74) [2021-11-09 10:46:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65576 states to 65576 states and 78738 transitions. [2021-11-09 10:46:53,008 INFO L78 Accepts]: Start accepts. Automaton has 65576 states and 78738 transitions. Word has length 127 [2021-11-09 10:46:53,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:46:53,011 INFO L470 AbstractCegarLoop]: Abstraction has 65576 states and 78738 transitions. [2021-11-09 10:46:53,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:46:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 65576 states and 78738 transitions. [2021-11-09 10:46:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-09 10:46:53,032 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:46:53,032 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:46:53,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:46:53,033 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-09 10:46:53,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:46:53,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1815155163, now seen corresponding path program 1 times [2021-11-09 10:46:53,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:46:53,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693650976] [2021-11-09 10:46:53,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:46:53,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:46:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:46:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:46:53,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:46:53,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693650976] [2021-11-09 10:46:53,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693650976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:46:53,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:46:53,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:46:53,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652218179] [2021-11-09 10:46:53,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:46:53,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:46:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:46:53,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:46:53,418 INFO L87 Difference]: Start difference. First operand 65576 states and 78738 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:46:57,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:46:57,323 INFO L93 Difference]: Finished difference Result 130882 states and 157167 transitions. [2021-11-09 10:46:57,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:46:57,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-09 10:46:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:46:57,716 INFO L225 Difference]: With dead ends: 130882 [2021-11-09 10:46:57,716 INFO L226 Difference]: Without dead ends: 98112 [2021-11-09 10:46:57,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:46:58,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98112 states. [2021-11-09 10:47:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98112 to 98086. [2021-11-09 10:47:01,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98086 states, 97950 states have (on average 1.200816743236345) internal successors, (117620), 98007 states have internal predecessors, (117620), 78 states have call successors, (78), 12 states have call predecessors, (78), 9 states have return successors, (111), 69 states have call predecessors, (111), 78 states have call successors, (111) [2021-11-09 10:47:01,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98086 states to 98086 states and 117809 transitions. [2021-11-09 10:47:01,987 INFO L78 Accepts]: Start accepts. Automaton has 98086 states and 117809 transitions. Word has length 155 [2021-11-09 10:47:02,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:47:02,000 INFO L470 AbstractCegarLoop]: Abstraction has 98086 states and 117809 transitions. [2021-11-09 10:47:02,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:02,011 INFO L276 IsEmpty]: Start isEmpty. Operand 98086 states and 117809 transitions. [2021-11-09 10:47:02,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-09 10:47:02,043 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:47:02,044 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:47:02,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 10:47:02,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-09 10:47:02,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:02,045 INFO L85 PathProgramCache]: Analyzing trace with hash 535291485, now seen corresponding path program 1 times [2021-11-09 10:47:02,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:02,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960915684] [2021-11-09 10:47:02,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:02,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:47:02,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:47:02,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960915684] [2021-11-09 10:47:02,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960915684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:47:02,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:47:02,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:47:02,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736443959] [2021-11-09 10:47:02,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:47:02,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:47:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:47:02,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:47:02,428 INFO L87 Difference]: Start difference. First operand 98086 states and 117809 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:47:07,493 INFO L93 Difference]: Finished difference Result 195904 states and 235313 transitions. [2021-11-09 10:47:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:47:07,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-09 10:47:07,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:47:08,266 INFO L225 Difference]: With dead ends: 195904 [2021-11-09 10:47:08,267 INFO L226 Difference]: Without dead ends: 130624 [2021-11-09 10:47:08,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:47:08,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130624 states. [2021-11-09 10:47:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130624 to 130591. [2021-11-09 10:47:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130591 states, 130426 states have (on average 1.200857191050864) internal successors, (156623), 130486 states have internal predecessors, (156623), 104 states have call successors, (104), 16 states have call predecessors, (104), 12 states have return successors, (148), 92 states have call predecessors, (148), 104 states have call successors, (148) [2021-11-09 10:47:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130591 states to 130591 states and 156875 transitions. [2021-11-09 10:47:13,051 INFO L78 Accepts]: Start accepts. Automaton has 130591 states and 156875 transitions. Word has length 155 [2021-11-09 10:47:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:47:13,052 INFO L470 AbstractCegarLoop]: Abstraction has 130591 states and 156875 transitions. [2021-11-09 10:47:13,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 130591 states and 156875 transitions. [2021-11-09 10:47:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-09 10:47:13,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:47:13,079 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2021-11-09 10:47:13,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 10:47:13,080 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-09 10:47:13,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:13,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1115956186, now seen corresponding path program 1 times [2021-11-09 10:47:13,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:13,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116768591] [2021-11-09 10:47:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:13,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:47:13,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:47:13,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116768591] [2021-11-09 10:47:13,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116768591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:47:13,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:47:13,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:47:13,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391763097] [2021-11-09 10:47:13,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:47:13,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:47:13,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:47:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:47:13,685 INFO L87 Difference]: Start difference. First operand 130591 states and 156875 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:47:17,114 INFO L93 Difference]: Finished difference Result 130591 states and 156875 transitions. [2021-11-09 10:47:17,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:47:17,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-09 10:47:17,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:47:17,462 INFO L225 Difference]: With dead ends: 130591 [2021-11-09 10:47:17,463 INFO L226 Difference]: Without dead ends: 130585 [2021-11-09 10:47:17,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:47:17,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130585 states. [2021-11-09 10:47:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130585 to 130585. [2021-11-09 10:47:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130585 states, 130423 states have (on average 1.2008388091057558) internal successors, (156617), 130480 states have internal predecessors, (156617), 104 states have call successors, (104), 16 states have call predecessors, (104), 12 states have return successors, (148), 92 states have call predecessors, (148), 104 states have call successors, (148) [2021-11-09 10:47:22,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130585 states to 130585 states and 156869 transitions. [2021-11-09 10:47:22,074 INFO L78 Accepts]: Start accepts. Automaton has 130585 states and 156869 transitions. Word has length 156 [2021-11-09 10:47:22,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:47:22,075 INFO L470 AbstractCegarLoop]: Abstraction has 130585 states and 156869 transitions. [2021-11-09 10:47:22,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 130585 states and 156869 transitions. [2021-11-09 10:47:22,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-09 10:47:22,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:47:22,092 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:47:22,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 10:47:22,092 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-09 10:47:22,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1307339299, now seen corresponding path program 1 times [2021-11-09 10:47:22,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:22,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095803498] [2021-11-09 10:47:22,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:22,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:47:22,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:47:22,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095803498] [2021-11-09 10:47:22,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095803498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:47:22,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:47:22,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:47:22,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240620863] [2021-11-09 10:47:22,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:47:22,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:47:22,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:47:22,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:47:22,650 INFO L87 Difference]: Start difference. First operand 130585 states and 156869 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)