./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY --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 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:42:48,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:42:48,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:42:48,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:42:48,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:42:48,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:42:48,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:42:48,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:42:48,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:42:48,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:42:48,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:42:48,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:42:48,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:42:48,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:42:48,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:42:48,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:42:48,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:42:48,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:42:48,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:42:48,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:42:48,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:42:48,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:42:48,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:42:48,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:42:48,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:42:48,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:42:48,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:42:48,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:42:48,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:42:48,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:42:48,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:42:48,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:42:48,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:42:48,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:42:48,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:42:48,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:42:48,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:42:48,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:42:48,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:42:48,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:42:48,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:42:48,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 07:42:48,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:42:48,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:42:48,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:42:48,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:42:48,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:42:48,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:42:48,473 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:42:48,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:42:48,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:42:48,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:42:48,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:42:48,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:42:48,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:42:48,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:42:48,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:42:48,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:42:48,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:42:48,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:42:48,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:42:48,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:42:48,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:42:48,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:42:48,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:42:48,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:42:48,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:42:48,477 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:42:48,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:42:48,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:42:48,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:42:48,478 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_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2021-11-07 07:42:48,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:42:48,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:42:48,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:42:48,759 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:42:48,760 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:42:48,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-07 07:42:48,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/data/7a7390507/3f2e2423ea5843768db9a2dae5ba9a3c/FLAG57653896b [2021-11-07 07:42:49,780 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:42:49,781 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-07 07:42:49,826 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/data/7a7390507/3f2e2423ea5843768db9a2dae5ba9a3c/FLAG57653896b [2021-11-07 07:42:50,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/data/7a7390507/3f2e2423ea5843768db9a2dae5ba9a3c [2021-11-07 07:42:50,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:42:50,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:42:50,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:42:50,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:42:50,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:42:50,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:42:50" (1/1) ... [2021-11-07 07:42:50,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e08c53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:50, skipping insertion in model container [2021-11-07 07:42:50,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:42:50" (1/1) ... [2021-11-07 07:42:50,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:42:50,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:42:51,173 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-11-07 07:42:51,174 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-11-07 07:42:51,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-11-07 07:42:52,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:42:52,754 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:42:52,917 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-11-07 07:42:52,917 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-11-07 07:42:52,936 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-11-07 07:42:53,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:42:53,391 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:42:53,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53 WrapperNode [2021-11-07 07:42:53,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:42:53,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:42:53,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:42:53,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:42:53,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:53,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:54,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:42:54,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:42:54,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:42:54,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:42:54,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:54,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:54,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:54,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:55,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:55,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:55,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:56,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:42:56,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:42:56,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:42:56,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:42:56,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (1/1) ... [2021-11-07 07:42:56,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:42:56,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:42:56,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:42:56,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307c510-412c-425c-af2f-0c140c7574b6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:42:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:42:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:42:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-07 07:42:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:42:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:42:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:42:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:42:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:42:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:42:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:42:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:42:56,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:43:11,980 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:43:11,980 INFO L299 CfgBuilder]: Removed 7639 assume(true) statements. [2021-11-07 07:43:11,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:11 BoogieIcfgContainer [2021-11-07 07:43:11,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:43:11,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:43:11,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:43:11,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:43:11,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:42:50" (1/3) ... [2021-11-07 07:43:11,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22882f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:11, skipping insertion in model container [2021-11-07 07:43:11,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:42:53" (2/3) ... [2021-11-07 07:43:11,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22882f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:11, skipping insertion in model container [2021-11-07 07:43:11,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:11" (3/3) ... [2021-11-07 07:43:11,997 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-07 07:43:12,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:43:12,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-07 07:43:12,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:43:12,074 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 [2021-11-07 07:43:12,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-07 07:43:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 5954 states, 5936 states have (on average 1.2784703504043127) internal successors, (7589), 5953 states have internal predecessors, (7589), 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) [2021-11-07 07:43:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 07:43:12,198 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:12,198 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:12,199 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 07:43:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:12,204 INFO L85 PathProgramCache]: Analyzing trace with hash 108145079, now seen corresponding path program 1 times [2021-11-07 07:43:12,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:12,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162578109] [2021-11-07 07:43:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:12,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:12,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:12,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162578109] [2021-11-07 07:43:12,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162578109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:12,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:12,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:43:12,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693436032] [2021-11-07 07:43:12,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:43:12,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:12,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:43:12,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:43:12,867 INFO L87 Difference]: Start difference. First operand has 5954 states, 5936 states have (on average 1.2784703504043127) internal successors, (7589), 5953 states have internal predecessors, (7589), 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) Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-07 07:43:14,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:14,187 INFO L93 Difference]: Finished difference Result 27781 states and 35199 transitions. [2021-11-07 07:43:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:43:14,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-07 07:43:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:14,336 INFO L225 Difference]: With dead ends: 27781 [2021-11-07 07:43:14,336 INFO L226 Difference]: Without dead ends: 21649 [2021-11-07 07:43:14,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21649 states. [2021-11-07 07:43:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21649 to 10919. [2021-11-07 07:43:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 10902 states have (on average 1.2526141992294992) internal successors, (13656), 10918 states have internal predecessors, (13656), 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) [2021-11-07 07:43:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 13656 transitions. [2021-11-07 07:43:15,184 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 13656 transitions. Word has length 41 [2021-11-07 07:43:15,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:15,185 INFO L470 AbstractCegarLoop]: Abstraction has 10919 states and 13656 transitions. [2021-11-07 07:43:15,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-07 07:43:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 13656 transitions. [2021-11-07 07:43:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 07:43:15,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:15,192 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:15,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:43:15,196 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 07:43:15,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:15,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2140998400, now seen corresponding path program 1 times [2021-11-07 07:43:15,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:15,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116527444] [2021-11-07 07:43:15,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:15,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:15,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:15,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116527444] [2021-11-07 07:43:15,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116527444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:15,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:15,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:43:15,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766734113] [2021-11-07 07:43:15,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:43:15,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:43:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:43:15,455 INFO L87 Difference]: Start difference. First operand 10919 states and 13656 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-07 07:43:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:17,305 INFO L93 Difference]: Finished difference Result 52621 states and 65663 transitions. [2021-11-07 07:43:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:43:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-07 07:43:17,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:17,467 INFO L225 Difference]: With dead ends: 52621 [2021-11-07 07:43:17,467 INFO L226 Difference]: Without dead ends: 41737 [2021-11-07 07:43:17,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41737 states. [2021-11-07 07:43:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41737 to 21569. [2021-11-07 07:43:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21569 states, 21552 states have (on average 1.251763177431329) internal successors, (26978), 21568 states have internal predecessors, (26978), 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) [2021-11-07 07:43:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21569 states to 21569 states and 26978 transitions. [2021-11-07 07:43:18,752 INFO L78 Accepts]: Start accepts. Automaton has 21569 states and 26978 transitions. Word has length 42 [2021-11-07 07:43:18,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:18,754 INFO L470 AbstractCegarLoop]: Abstraction has 21569 states and 26978 transitions. [2021-11-07 07:43:18,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-07 07:43:18,755 INFO L276 IsEmpty]: Start isEmpty. Operand 21569 states and 26978 transitions. [2021-11-07 07:43:18,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 07:43:18,762 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:18,763 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:18,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:43:18,764 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 07:43:18,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:18,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1149998481, now seen corresponding path program 1 times [2021-11-07 07:43:18,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:18,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237437856] [2021-11-07 07:43:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:18,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:18,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:18,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237437856] [2021-11-07 07:43:18,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237437856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:18,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:18,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:43:18,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390545307] [2021-11-07 07:43:18,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:43:18,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:18,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:43:18,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:43:18,950 INFO L87 Difference]: Start difference. First operand 21569 states and 26978 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-07 07:43:21,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:21,741 INFO L93 Difference]: Finished difference Result 104471 states and 130386 transitions. [2021-11-07 07:43:21,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:43:21,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2021-11-07 07:43:21,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:21,982 INFO L225 Difference]: With dead ends: 104471 [2021-11-07 07:43:21,982 INFO L226 Difference]: Without dead ends: 82937 [2021-11-07 07:43:22,049 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:22,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82937 states. [2021-11-07 07:43:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82937 to 42672. [2021-11-07 07:43:24,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42672 states, 42655 states have (on average 1.2508263978431602) internal successors, (53354), 42671 states have internal predecessors, (53354), 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) [2021-11-07 07:43:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42672 states to 42672 states and 53354 transitions. [2021-11-07 07:43:24,141 INFO L78 Accepts]: Start accepts. Automaton has 42672 states and 53354 transitions. Word has length 43 [2021-11-07 07:43:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:24,141 INFO L470 AbstractCegarLoop]: Abstraction has 42672 states and 53354 transitions. [2021-11-07 07:43:24,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-07 07:43:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 42672 states and 53354 transitions. [2021-11-07 07:43:24,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 07:43:24,146 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:24,146 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:24,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:43:24,147 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 07:43:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:24,147 INFO L85 PathProgramCache]: Analyzing trace with hash 91687386, now seen corresponding path program 1 times [2021-11-07 07:43:24,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:24,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571858649] [2021-11-07 07:43:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:24,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:24,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:24,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571858649] [2021-11-07 07:43:24,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571858649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:24,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:24,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:43:24,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189297815] [2021-11-07 07:43:24,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:43:24,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:24,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:43:24,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:43:24,544 INFO L87 Difference]: Start difference. First operand 42672 states and 53354 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-07 07:43:29,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:29,493 INFO L93 Difference]: Finished difference Result 207576 states and 259020 transitions. [2021-11-07 07:43:29,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:43:29,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-07 07:43:29,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:29,859 INFO L225 Difference]: With dead ends: 207576 [2021-11-07 07:43:29,859 INFO L226 Difference]: Without dead ends: 164939 [2021-11-07 07:43:29,956 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:30,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164939 states. [2021-11-07 07:43:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164939 to 84483. [2021-11-07 07:43:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84483 states, 84466 states have (on average 1.2498283332938698) internal successors, (105568), 84482 states have internal predecessors, (105568), 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) [2021-11-07 07:43:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84483 states to 84483 states and 105568 transitions. [2021-11-07 07:43:33,997 INFO L78 Accepts]: Start accepts. Automaton has 84483 states and 105568 transitions. Word has length 44 [2021-11-07 07:43:33,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:33,997 INFO L470 AbstractCegarLoop]: Abstraction has 84483 states and 105568 transitions. [2021-11-07 07:43:33,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-07 07:43:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 84483 states and 105568 transitions. [2021-11-07 07:43:34,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 07:43:34,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:34,005 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:34,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:43:34,006 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 07:43:34,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:34,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1883650530, now seen corresponding path program 1 times [2021-11-07 07:43:34,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:34,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480597323] [2021-11-07 07:43:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:34,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 07:43:34,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:34,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480597323] [2021-11-07 07:43:34,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480597323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:34,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:34,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:43:34,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703722148] [2021-11-07 07:43:34,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:43:34,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:43:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:34,240 INFO L87 Difference]: Start difference. First operand 84483 states and 105568 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-07 07:43:42,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:42,157 INFO L93 Difference]: Finished difference Result 292051 states and 364576 transitions. [2021-11-07 07:43:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:43:42,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 49 [2021-11-07 07:43:42,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:42,686 INFO L225 Difference]: With dead ends: 292051 [2021-11-07 07:43:42,686 INFO L226 Difference]: Without dead ends: 207603 [2021-11-07 07:43:42,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:43:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207603 states.