/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:48:07,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:48:07,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:48:07,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:48:07,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:48:07,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:48:07,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:48:07,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:48:07,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:48:07,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:48:07,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:48:07,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:48:07,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:48:07,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:48:07,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:48:07,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:48:07,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:48:07,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:48:07,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:48:07,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:48:07,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:48:07,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:48:07,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:48:07,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:48:07,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:48:07,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:48:07,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:48:07,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:48:07,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:48:07,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:48:07,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:48:07,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:48:07,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:48:07,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:48:07,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:48:07,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:48:07,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:48:07,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:48:07,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:48:07,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:48:07,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:48:07,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:48:08,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:48:08,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:48:08,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:48:08,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:48:08,032 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:48:08,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:48:08,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:48:08,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:48:08,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:48:08,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:48:08,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:48:08,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:48:08,034 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:48:08,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:48:08,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:48:08,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:48:08,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:48:08,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:48:08,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:48:08,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:48:08,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:48:08,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:48:08,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:48:08,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:48:08,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:48:08,039 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:48:08,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:48:08,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:48:08,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:48:08,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:48:08,486 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:48:08,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2020-12-22 14:48:08,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1895760/86f739fe7dc441cca56f73e5479a05da/FLAG921a2eba4 [2020-12-22 14:48:09,770 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:48:09,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2020-12-22 14:48:09,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1895760/86f739fe7dc441cca56f73e5479a05da/FLAG921a2eba4 [2020-12-22 14:48:10,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1895760/86f739fe7dc441cca56f73e5479a05da [2020-12-22 14:48:10,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:48:10,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:48:10,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:48:10,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:48:10,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:48:10,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:48:10" (1/1) ... [2020-12-22 14:48:10,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b97f85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:10, skipping insertion in model container [2020-12-22 14:48:10,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:48:10" (1/1) ... [2020-12-22 14:48:10,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:48:10,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:48:15,803 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i[374730,374743] [2020-12-22 14:48:15,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:48:15,963 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:48:16,687 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i[374730,374743] [2020-12-22 14:48:16,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:48:18,138 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:48:18,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18 WrapperNode [2020-12-22 14:48:18,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:48:18,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:48:18,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:48:18,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:48:18,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:18,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:24,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:48:24,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:48:24,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:48:24,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:48:24,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:24,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:26,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:26,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:29,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:30,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:31,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... [2020-12-22 14:48:32,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:48:32,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:48:32,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:48:32,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:48:32,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:48:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-12-22 14:48:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2020-12-22 14:48:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2020-12-22 14:48:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2020-12-22 14:48:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2020-12-22 14:48:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2020-12-22 14:48:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2020-12-22 14:48:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2020-12-22 14:48:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2020-12-22 14:48:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2020-12-22 14:48:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2020-12-22 14:48:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2020-12-22 14:48:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2020-12-22 14:48:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2020-12-22 14:48:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 14:48:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2020-12-22 14:48:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2020-12-22 14:48:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:48:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:48:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:48:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2020-12-22 14:48:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2020-12-22 14:48:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:48:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2020-12-22 14:48:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2020-12-22 14:48:32,470 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2020-12-22 14:48:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2020-12-22 14:48:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2020-12-22 14:48:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2020-12-22 14:48:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:48:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2020-12-22 14:48:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2020-12-22 14:48:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2020-12-22 14:48:32,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:48:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:48:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:48:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2020-12-22 14:48:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2020-12-22 14:48:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2020-12-22 14:48:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2020-12-22 14:48:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:48:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:48:32,472 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2020-12-22 14:48:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2020-12-22 14:48:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:48:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:48:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2020-12-22 14:48:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2020-12-22 14:48:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:48:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:48:32,473 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2020-12-22 14:48:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2020-12-22 14:48:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2020-12-22 14:48:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2020-12-22 14:48:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_32 [2020-12-22 14:48:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_32 [2020-12-22 14:48:32,474 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2020-12-22 14:48:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2020-12-22 14:48:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:48:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_31 [2020-12-22 14:48:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_31 [2020-12-22 14:48:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2020-12-22 14:48:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2020-12-22 14:48:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2020-12-22 14:48:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2020-12-22 14:48:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2020-12-22 14:48:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2020-12-22 14:48:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2020-12-22 14:48:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:48:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2020-12-22 14:48:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2020-12-22 14:48:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2020-12-22 14:48:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2020-12-22 14:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2020-12-22 14:48:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2020-12-22 14:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2020-12-22 14:48:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2020-12-22 14:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2020-12-22 14:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2020-12-22 14:48:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2020-12-22 14:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2020-12-22 14:48:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2020-12-22 14:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2020-12-22 14:48:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2020-12-22 14:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2020-12-22 14:48:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2020-12-22 14:48:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:48:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 14:50:17,488 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:50:17,489 INFO L299 CfgBuilder]: Removed 37520 assume(true) statements. [2020-12-22 14:50:17,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:50:17 BoogieIcfgContainer [2020-12-22 14:50:17,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:50:17,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:50:17,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:50:17,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:50:17,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:48:10" (1/3) ... [2020-12-22 14:50:17,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9bf823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:50:17, skipping insertion in model container [2020-12-22 14:50:17,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:48:18" (2/3) ... [2020-12-22 14:50:17,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9bf823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:50:17, skipping insertion in model container [2020-12-22 14:50:17,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:50:17" (3/3) ... [2020-12-22 14:50:17,526 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2020-12-22 14:50:17,534 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:50:17,548 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-12-22 14:50:17,570 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 14:50:17,695 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:50:17,695 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:50:17,695 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:50:17,696 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:50:17,696 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:50:17,697 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:50:17,697 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:50:17,697 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:50:17,982 INFO L276 IsEmpty]: Start isEmpty. Operand 25827 states. [2020-12-22 14:50:17,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 14:50:17,992 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:50:17,993 INFO L422 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] [2020-12-22 14:50:17,994 INFO L429 AbstractCegarLoop]: === Iteration 1 === [do_workerErr0ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr1ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:50:18,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:50:18,001 INFO L82 PathProgramCache]: Analyzing trace with hash -240337016, now seen corresponding path program 1 times [2020-12-22 14:50:18,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:50:18,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513627525] [2020-12-22 14:50:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:50:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:50:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:50:19,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513627525] [2020-12-22 14:50:19,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:50:19,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:50:19,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121517193] [2020-12-22 14:50:19,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:50:19,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:50:19,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:50:19,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:50:19,079 INFO L87 Difference]: Start difference. First operand 25827 states. Second operand 2 states. [2020-12-22 14:50:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:50:20,556 INFO L93 Difference]: Finished difference Result 51650 states and 66915 transitions. [2020-12-22 14:50:20,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:50:20,563 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 72 [2020-12-22 14:50:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:50:20,751 INFO L225 Difference]: With dead ends: 51650 [2020-12-22 14:50:20,758 INFO L226 Difference]: Without dead ends: 25204 [2020-12-22 14:50:21,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:50:21,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25204 states. [2020-12-22 14:50:22,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25204 to 25204. [2020-12-22 14:50:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25204 states. [2020-12-22 14:50:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25204 states to 25204 states and 31452 transitions. [2020-12-22 14:50:22,451 INFO L78 Accepts]: Start accepts. Automaton has 25204 states and 31452 transitions. Word has length 72 [2020-12-22 14:50:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:50:22,452 INFO L481 AbstractCegarLoop]: Abstraction has 25204 states and 31452 transitions. [2020-12-22 14:50:22,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:50:22,452 INFO L276 IsEmpty]: Start isEmpty. Operand 25204 states and 31452 transitions. [2020-12-22 14:50:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 14:50:22,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:50:22,462 INFO L422 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] [2020-12-22 14:50:22,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:50:22,462 INFO L429 AbstractCegarLoop]: === Iteration 2 === [do_workerErr0ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr1ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:50:22,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:50:22,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1854862954, now seen corresponding path program 1 times [2020-12-22 14:50:22,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:50:22,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337388664] [2020-12-22 14:50:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:50:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:50:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:50:23,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337388664] [2020-12-22 14:50:23,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:50:23,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:50:23,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711507886] [2020-12-22 14:50:23,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:50:23,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:50:23,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:50:23,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:50:23,045 INFO L87 Difference]: Start difference. First operand 25204 states and 31452 transitions. Second operand 3 states. [2020-12-22 14:50:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:50:25,219 INFO L93 Difference]: Finished difference Result 57337 states and 71626 transitions. [2020-12-22 14:50:25,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:50:25,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-12-22 14:50:25,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:50:25,420 INFO L225 Difference]: With dead ends: 57337 [2020-12-22 14:50:25,421 INFO L226 Difference]: Without dead ends: 32198 [2020-12-22 14:50:25,787 INFO L677 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 [2020-12-22 14:50:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32198 states. [2020-12-22 14:50:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32198 to 32179. [2020-12-22 14:50:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32179 states. [2020-12-22 14:50:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32179 states to 32179 states and 40229 transitions. [2020-12-22 14:50:27,063 INFO L78 Accepts]: Start accepts. Automaton has 32179 states and 40229 transitions. Word has length 72 [2020-12-22 14:50:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:50:27,063 INFO L481 AbstractCegarLoop]: Abstraction has 32179 states and 40229 transitions. [2020-12-22 14:50:27,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:50:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 32179 states and 40229 transitions. [2020-12-22 14:50:27,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 14:50:27,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:50:27,068 INFO L422 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] [2020-12-22 14:50:27,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:50:27,069 INFO L429 AbstractCegarLoop]: === Iteration 3 === [do_workerErr0ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr1ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:50:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:50:27,069 INFO L82 PathProgramCache]: Analyzing trace with hash 426460143, now seen corresponding path program 1 times [2020-12-22 14:50:27,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:50:27,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981214259] [2020-12-22 14:50:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:50:27,331 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 14:50:27,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314263942] [2020-12-22 14:50:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:50:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:50:31,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 3160 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:50:31,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:50:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:50:31,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981214259] [2020-12-22 14:50:31,560 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 14:50:31,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314263942] [2020-12-22 14:50:31,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:50:31,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:50:31,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848794063] [2020-12-22 14:50:31,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:50:31,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:50:31,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:50:31,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:50:31,563 INFO L87 Difference]: Start difference. First operand 32179 states and 40229 transitions. Second operand 3 states. [2020-12-22 14:50:33,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:50:33,409 INFO L93 Difference]: Finished difference Result 64517 states and 80859 transitions. [2020-12-22 14:50:33,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:50:33,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-22 14:50:33,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:50:33,549 INFO L225 Difference]: With dead ends: 64517 [2020-12-22 14:50:33,549 INFO L226 Difference]: Without dead ends: 32403 [2020-12-22 14:50:33,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:50:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32403 states. [2020-12-22 14:50:34,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32403 to 32181. [2020-12-22 14:50:34,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32181 states. [2020-12-22 14:50:34,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32181 states to 32181 states and 40231 transitions. [2020-12-22 14:50:34,889 INFO L78 Accepts]: Start accepts. Automaton has 32181 states and 40231 transitions. Word has length 96 [2020-12-22 14:50:34,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:50:34,892 INFO L481 AbstractCegarLoop]: Abstraction has 32181 states and 40231 transitions. [2020-12-22 14:50:34,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:50:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 32181 states and 40231 transitions. [2020-12-22 14:50:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 14:50:34,898 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:50:34,898 INFO L422 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] [2020-12-22 14:50:35,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 14:50:35,113 INFO L429 AbstractCegarLoop]: === Iteration 4 === [do_workerErr0ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr1ASSERT_VIOLATIONERROR_FUNCTION, do_workerErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:50:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:50:35,115 INFO L82 PathProgramCache]: Analyzing trace with hash -391188307, now seen corresponding path program 1 times [2020-12-22 14:50:35,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:50:35,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150706158] [2020-12-22 14:50:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:50:35,356 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 14:50:35,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670191679] [2020-12-22 14:50:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:50:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:50:39,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 3161 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:50:39,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:50:39,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:50:39,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150706158] [2020-12-22 14:50:39,484 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 14:50:39,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670191679] [2020-12-22 14:50:39,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:50:39,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:50:39,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776469603] [2020-12-22 14:50:39,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:50:39,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:50:39,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:50:39,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:50:39,494 INFO L87 Difference]: Start difference. First operand 32181 states and 40231 transitions. Second operand 3 states. [2020-12-22 14:50:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:50:45,877 INFO L93 Difference]: Finished difference Result 32181 states and 40231 transitions. [2020-12-22 14:50:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:50:45,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-22 14:50:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:50:45,880 INFO L225 Difference]: With dead ends: 32181 [2020-12-22 14:50:45,880 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 14:50:45,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:50:45,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 14:50:45,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 14:50:45,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 14:50:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 14:50:45,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2020-12-22 14:50:45,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:50:45,967 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 14:50:45,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:50:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 14:50:45,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 14:50:46,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:50:46,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 14:50:47,660 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-12-22 14:50:49,333 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-12-22 14:50:53,499 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 1