./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-ethernet-stmicro-stmmac-stmmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G --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 dc77dba7d0a42d28a45b5d35d96b429d0886353a9713255eb9fc5a14ecd01454 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:39:30,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:39:30,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:39:30,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:39:30,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:39:30,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:39:30,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:39:30,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:39:30,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:39:30,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:39:30,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:39:30,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:39:30,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:39:30,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:39:30,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:39:30,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:39:30,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:39:30,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:39:30,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:39:30,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:39:30,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:39:31,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:39:31,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:39:31,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:39:31,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:39:31,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:39:31,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:39:31,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:39:31,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:39:31,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:39:31,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:39:31,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:39:31,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:39:31,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:39:31,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:39:31,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:39:31,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:39:31,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:39:31,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:39:31,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:39:31,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:39:31,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 13:39:31,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:39:31,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:39:31,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:39:31,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:39:31,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:39:31,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:39:31,107 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:39:31,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:39:31,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:39:31,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:39:31,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:39:31,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:39:31,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:39:31,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:39:31,110 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:39:31,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:39:31,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:39:31,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:39:31,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:39:31,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:39:31,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:39:31,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:39:31,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:39:31,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:39:31,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:39:31,114 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:39:31,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:39:31,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:39:31,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:39:31,116 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc77dba7d0a42d28a45b5d35d96b429d0886353a9713255eb9fc5a14ecd01454 [2021-11-23 13:39:31,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:39:31,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:39:31,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:39:31,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:39:31,537 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:39:31,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 13:39:31,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/data/00bf741a8/8de3baabff1f42ce96268e87265f37c5/FLAG469dad134 [2021-11-23 13:39:33,243 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:39:33,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 13:39:33,367 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/data/00bf741a8/8de3baabff1f42ce96268e87265f37c5/FLAG469dad134 [2021-11-23 13:39:33,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/data/00bf741a8/8de3baabff1f42ce96268e87265f37c5 [2021-11-23 13:39:33,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:39:33,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:39:33,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:39:33,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:39:33,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:39:33,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:33" (1/1) ... [2021-11-23 13:39:33,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ed7961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:33, skipping insertion in model container [2021-11-23 13:39:33,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:33" (1/1) ... [2021-11-23 13:39:33,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:39:34,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:39:48,635 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886222,886235] [2021-11-23 13:39:48,639 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886391,886404] [2021-11-23 13:39:48,640 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886558,886571] [2021-11-23 13:39:48,641 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886726,886739] [2021-11-23 13:39:48,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:39:48,872 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:39:49,896 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886222,886235] [2021-11-23 13:39:49,897 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886391,886404] [2021-11-23 13:39:49,898 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886558,886571] [2021-11-23 13:39:49,898 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_9f5fefc9-1a7e-4073-bcfa-23eda087584c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[886726,886739] [2021-11-23 13:39:49,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:39:50,771 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:39:50,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50 WrapperNode [2021-11-23 13:39:50,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:39:50,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:39:50,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:39:50,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:39:50,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:51,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:53,487 INFO L137 Inliner]: procedures = 1123, calls = 12719, calls flagged for inlining = 2489, calls inlined = 5585, statements flattened = 69582 [2021-11-23 13:39:53,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:39:53,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:39:53,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:39:53,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:39:53,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:53,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:54,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:54,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:56,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:56,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:56,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:57,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:39:57,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:39:57,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:39:57,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:39:57,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (1/1) ... [2021-11-23 13:39:57,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:39:57,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:39:57,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:39:57,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:39:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-23 13:39:57,464 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-23 13:39:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-23 13:39:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-23 13:39:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-23 13:39:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-23 13:39:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-23 13:39:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-23 13:39:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:39:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:39:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-23 13:39:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-23 13:39:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:39:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:39:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 13:39:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-23 13:39:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-23 13:39:57,468 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-23 13:39:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-23 13:39:57,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:39:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:39:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 13:39:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 13:39:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-23 13:39:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-23 13:39:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-23 13:39:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-23 13:39:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-23 13:39:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-23 13:39:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:39:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 13:39:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 13:39:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:39:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-23 13:39:57,472 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-23 13:39:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-23 13:39:57,473 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-23 13:39:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-23 13:39:57,473 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-23 13:39:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:39:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-23 13:39:57,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-23 13:39:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-23 13:39:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-23 13:39:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-23 13:39:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-23 13:39:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-23 13:39:57,476 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-23 13:39:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-23 13:39:57,476 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-23 13:39:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:39:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-23 13:39:57,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-23 13:39:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 13:39:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 13:39:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-23 13:39:57,479 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-23 13:39:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-23 13:39:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-23 13:39:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-23 13:39:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-23 13:39:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-23 13:39:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-23 13:39:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-23 13:39:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-23 13:39:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-23 13:39:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-23 13:39:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-23 13:39:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-23 13:39:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 13:39:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 13:39:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-23 13:39:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-23 13:39:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 13:39:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 13:39:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 13:39:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 13:39:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-23 13:39:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-23 13:39:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-23 13:39:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-23 13:39:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-23 13:39:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-23 13:39:57,487 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-23 13:39:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-23 13:39:57,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:39:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:39:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:39:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 13:39:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 13:39:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-23 13:39:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-23 13:40:01,611 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:40:01,614 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:41:12,677 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 13:41:12,677 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 13:41:12,677 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 13:41:12,677 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 13:41:12,678 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-23 13:41:12,678 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res#1 := 0; [2021-11-23 13:41:12,679 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res#1 := 0; [2021-11-23 13:41:12,679 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res#1 := 0; [2021-11-23 13:41:12,679 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#1: ldv_switch_6_#res#1 := 0; [2021-11-23 13:41:12,680 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#1: ldv_switch_5_#res#1 := 0; [2021-11-23 13:41:12,681 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res#1 := 0; [2021-11-23 13:41:12,681 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break#1: ldv_switch_7_#res#1 := 0; [2021-11-23 13:41:12,682 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#1: ldv_switch_4_#res#1 := 0; [2021-11-23 13:41:12,682 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res#1 := 0; [2021-11-23 13:41:12,683 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res#1 := 0; [2021-11-23 13:41:12,683 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res#1 := 0; [2021-11-23 13:41:12,684 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#1: ldv_switch_8_#res#1 := 0; [2021-11-23 13:41:12,684 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-23 13:41:12,684 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-23 13:41:12,685 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 13:41:12,686 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 13:41:12,690 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 13:41:12,691 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res#1 := 0; [2021-11-23 13:41:12,691 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break#1: ldv_switch_9_#res#1 := 0; [2021-11-23 13:41:12,694 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 13:41:12,837 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:41:12,933 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:41:12,933 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 13:41:12,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:12 BoogieIcfgContainer [2021-11-23 13:41:12,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:41:12,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:41:12,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:41:12,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:41:12,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:39:33" (1/3) ... [2021-11-23 13:41:12,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1d42bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:41:12, skipping insertion in model container [2021-11-23 13:41:12,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:50" (2/3) ... [2021-11-23 13:41:12,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1d42bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:41:12, skipping insertion in model container [2021-11-23 13:41:12,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:12" (3/3) ... [2021-11-23 13:41:12,969 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 13:41:12,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:41:12,979 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2021-11-23 13:41:13,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:41:13,123 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 [2021-11-23 13:41:13,124 INFO L340 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2021-11-23 13:41:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 13006 states, 12716 states have (on average 1.350660585089651) internal successors, (17175), 12843 states have internal predecessors, (17175), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) [2021-11-23 13:41:13,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-23 13:41:13,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:41:13,431 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:41:13,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-23 13:41:13,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:41:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 2122722472, now seen corresponding path program 1 times [2021-11-23 13:41:13,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:41:13,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150001461] [2021-11-23 13:41:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:41:13,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:41:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:41:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:41:16,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:41:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150001461] [2021-11-23 13:41:16,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150001461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:41:16,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:41:16,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:41:16,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005656811] [2021-11-23 13:41:16,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:41:16,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:41:16,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:41:16,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:41:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:41:16,400 INFO L87 Difference]: Start difference. First operand has 13006 states, 12716 states have (on average 1.350660585089651) internal successors, (17175), 12843 states have internal predecessors, (17175), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2021-11-23 13:41:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:41:19,336 INFO L93 Difference]: Finished difference Result 37027 states and 50020 transitions. [2021-11-23 13:41:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:41:19,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 259 [2021-11-23 13:41:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:41:19,588 INFO L225 Difference]: With dead ends: 37027 [2021-11-23 13:41:19,588 INFO L226 Difference]: Without dead ends: 24038 [2021-11-23 13:41:19,769 INFO L932 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 [2021-11-23 13:41:19,774 INFO L933 BasicCegarLoop]: 17375 mSDtfsCounter, 15862 mSDsluCounter, 17178 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15862 SdHoareTripleChecker+Valid, 34553 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:41:19,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15862 Valid, 34553 Invalid, 84 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 13:41:19,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24038 states. [2021-11-23 13:41:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24038 to 23902. [2021-11-23 13:41:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23902 states, 23441 states have (on average 1.321274689646346) internal successors, (30972), 23577 states have internal predecessors, (30972), 268 states have call successors, (268), 74 states have call predecessors, (268), 74 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2021-11-23 13:41:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23902 states to 23902 states and 31508 transitions. [2021-11-23 13:41:21,345 INFO L78 Accepts]: Start accepts. Automaton has 23902 states and 31508 transitions. Word has length 259 [2021-11-23 13:41:21,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:41:21,352 INFO L470 AbstractCegarLoop]: Abstraction has 23902 states and 31508 transitions. [2021-11-23 13:41:21,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2021-11-23 13:41:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 23902 states and 31508 transitions. [2021-11-23 13:41:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-23 13:41:21,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:41:21,369 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:41:21,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:41:21,371 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-23 13:41:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:41:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1497698394, now seen corresponding path program 1 times [2021-11-23 13:41:21,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:41:21,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224490875] [2021-11-23 13:41:21,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:41:21,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:41:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:41:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:41:23,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:41:23,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224490875] [2021-11-23 13:41:23,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224490875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:41:23,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:41:23,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:41:23,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075942867] [2021-11-23 13:41:23,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:41:23,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:41:23,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:41:23,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:41:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:41:23,525 INFO L87 Difference]: Start difference. First operand 23902 states and 31508 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2021-11-23 13:41:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:41:26,213 INFO L93 Difference]: Finished difference Result 58362 states and 77135 transitions. [2021-11-23 13:41:26,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:41:26,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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 263 [2021-11-23 13:41:26,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:41:26,539 INFO L225 Difference]: With dead ends: 58362 [2021-11-23 13:41:26,540 INFO L226 Difference]: Without dead ends: 35105 [2021-11-23 13:41:26,649 INFO L932 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 [2021-11-23 13:41:26,651 INFO L933 BasicCegarLoop]: 16439 mSDtfsCounter, 15194 mSDsluCounter, 16251 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15194 SdHoareTripleChecker+Valid, 32690 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:41:26,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15194 Valid, 32690 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 13:41:26,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35105 states. [2021-11-23 13:41:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35105 to 34761. [2021-11-23 13:41:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34761 states, 34129 states have (on average 1.3257640130094641) internal successors, (45247), 34274 states have internal predecessors, (45247), 402 states have call successors, (402), 111 states have call predecessors, (402), 111 states have return successors, (402), 396 states have call predecessors, (402), 402 states have call successors, (402) [2021-11-23 13:41:28,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34761 states to 34761 states and 46051 transitions. [2021-11-23 13:41:28,474 INFO L78 Accepts]: Start accepts. Automaton has 34761 states and 46051 transitions. Word has length 263 [2021-11-23 13:41:28,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:41:28,476 INFO L470 AbstractCegarLoop]: Abstraction has 34761 states and 46051 transitions. [2021-11-23 13:41:28,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2021-11-23 13:41:28,477 INFO L276 IsEmpty]: Start isEmpty. Operand 34761 states and 46051 transitions. [2021-11-23 13:41:28,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-23 13:41:28,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:41:28,485 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:41:28,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:41:28,487 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-23 13:41:28,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:41:28,488 INFO L85 PathProgramCache]: Analyzing trace with hash 495154838, now seen corresponding path program 1 times [2021-11-23 13:41:28,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:41:28,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329631222] [2021-11-23 13:41:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:41:28,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:41:29,138 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:41:29,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974452120] [2021-11-23 13:41:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:41:29,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:41:29,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:41:29,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:41:29,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:41:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:41:36,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 19263 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:41:36,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:41:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:41:37,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:41:37,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:41:37,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329631222] [2021-11-23 13:41:37,254 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:41:37,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974452120] [2021-11-23 13:41:37,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974452120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:41:37,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:41:37,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:41:37,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520222783] [2021-11-23 13:41:37,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:41:37,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:41:37,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:41:37,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:41:37,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:41:37,271 INFO L87 Difference]: Start difference. First operand 34761 states and 46051 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2021-11-23 13:41:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:41:40,334 INFO L93 Difference]: Finished difference Result 102055 states and 135638 transitions. [2021-11-23 13:41:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:41:40,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 264 [2021-11-23 13:41:40,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:41:40,836 INFO L225 Difference]: With dead ends: 102055 [2021-11-23 13:41:40,836 INFO L226 Difference]: Without dead ends: 67939 [2021-11-23 13:41:41,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:41:41,074 INFO L933 BasicCegarLoop]: 16807 mSDtfsCounter, 15427 mSDsluCounter, 16036 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15427 SdHoareTripleChecker+Valid, 32843 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:41:41,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15427 Valid, 32843 Invalid, 100 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [20 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:41:41,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67939 states. [2021-11-23 13:41:43,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67939 to 67593. [2021-11-23 13:41:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67593 states, 66448 states have (on average 1.3302732964122321) internal successors, (88394), 66620 states have internal predecessors, (88394), 804 states have call successors, (804), 222 states have call predecessors, (804), 222 states have return successors, (804), 792 states have call predecessors, (804), 804 states have call successors, (804) [2021-11-23 13:41:44,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67593 states to 67593 states and 90002 transitions. [2021-11-23 13:41:44,472 INFO L78 Accepts]: Start accepts. Automaton has 67593 states and 90002 transitions. Word has length 264 [2021-11-23 13:41:44,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:41:44,473 INFO L470 AbstractCegarLoop]: Abstraction has 67593 states and 90002 transitions. [2021-11-23 13:41:44,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2021-11-23 13:41:44,474 INFO L276 IsEmpty]: Start isEmpty. Operand 67593 states and 90002 transitions. [2021-11-23 13:41:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-23 13:41:44,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:41:44,493 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:41:44,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:41:44,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fefc9-1a7e-4073-bcfa-23eda087584c/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:41:44,708 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-23 13:41:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:41:44,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1945116546, now seen corresponding path program 1 times [2021-11-23 13:41:44,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:41:44,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963229446] [2021-11-23 13:41:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:41:44,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:41:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:41:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:41:46,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:41:46,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963229446] [2021-11-23 13:41:46,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963229446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:41:46,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:41:46,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:41:46,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035327] [2021-11-23 13:41:46,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:41:46,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:41:46,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:41:46,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:41:46,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:41:46,923 INFO L87 Difference]: Start difference. First operand 67593 states and 90002 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:41:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:41:52,206 INFO L93 Difference]: Finished difference Result 201189 states and 269786 transitions. [2021-11-23 13:41:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:41:52,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2021-11-23 13:41:52,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:41:53,927 INFO L225 Difference]: With dead ends: 201189 [2021-11-23 13:41:53,927 INFO L226 Difference]: Without dead ends: 134241 [2021-11-23 13:41:54,525 INFO L932 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 [2021-11-23 13:41:54,528 INFO L933 BasicCegarLoop]: 16725 mSDtfsCounter, 15678 mSDsluCounter, 16387 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15678 SdHoareTripleChecker+Valid, 33112 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:41:54,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15678 Valid, 33112 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 13:41:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134241 states. [2021-11-23 13:42:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134241 to 133509. [2021-11-23 13:42:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133509 states, 131356 states have (on average 1.3325314412740947) internal successors, (175036), 131576 states have internal predecessors, (175036), 1590 states have call successors, (1590), 438 states have call predecessors, (1590), 444 states have return successors, (3144), 1578 states have call predecessors, (3144), 1590 states have call successors, (3144) [2021-11-23 13:42:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133509 states to 133509 states and 179770 transitions. [2021-11-23 13:42:01,309 INFO L78 Accepts]: Start accepts. Automaton has 133509 states and 179770 transitions. Word has length 271 [2021-11-23 13:42:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:42:01,311 INFO L470 AbstractCegarLoop]: Abstraction has 133509 states and 179770 transitions. [2021-11-23 13:42:01,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 133509 states and 179770 transitions. [2021-11-23 13:42:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-23 13:42:01,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:42:01,323 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:42:01,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:42:01,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr87ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_resumeErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_resumeErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 116 more)] === [2021-11-23 13:42:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:01,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1238512722, now seen corresponding path program 1 times [2021-11-23 13:42:01,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:42:01,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204936089] [2021-11-23 13:42:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:42:01,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:42:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:42:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:03,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:42:03,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204936089] [2021-11-23 13:42:03,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204936089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:42:03,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:42:03,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:42:03,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313891076] [2021-11-23 13:42:03,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:42:03,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:42:03,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:42:03,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:42:03,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:42:03,534 INFO L87 Difference]: Start difference. First operand 133509 states and 179770 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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)