./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--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/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--fddi--defxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0 --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 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:49:26,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:49:26,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:49:26,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:49:26,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:49:26,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:49:26,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:49:26,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:49:26,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:49:26,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:49:26,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:49:26,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:49:26,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:49:26,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:49:26,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:49:26,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:49:26,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:49:26,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:49:26,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:49:26,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:49:26,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:49:26,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:49:26,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:49:26,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:49:26,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:49:26,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:49:26,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:49:26,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:49:26,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:49:26,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:49:26,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:49:26,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:49:26,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:49:26,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:49:26,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:49:26,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:49:26,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:49:26,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:49:26,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:49:26,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:49:26,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:49:26,500 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 14:49:26,532 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:49:26,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:49:26,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:49:26,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:49:26,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:49:26,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:49:26,542 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:49:26,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:49:26,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:49:26,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:49:26,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:49:26,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:49:26,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:49:26,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:49:26,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:49:26,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:49:26,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:49:26,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:49:26,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:49:26,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:49:26,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:49:26,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:49:26,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:49:26,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:49:26,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:49:26,547 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:49:26,547 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:49:26,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:49:26,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:49:26,549 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_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2021-11-22 14:49:26,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:49:26,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:49:26,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:49:26,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:49:26,902 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:49:26,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-22 14:49:26,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/data/0f1ab0b51/dab031def0d64c5388bcca6807471ce7/FLAG8af626241 [2021-11-22 14:49:28,008 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:49:28,009 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-22 14:49:28,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/data/0f1ab0b51/dab031def0d64c5388bcca6807471ce7/FLAG8af626241 [2021-11-22 14:49:28,353 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/data/0f1ab0b51/dab031def0d64c5388bcca6807471ce7 [2021-11-22 14:49:28,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:49:28,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:49:28,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:49:28,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:49:28,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:49:28,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:49:28" (1/1) ... [2021-11-22 14:49:28,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725d9af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:28, skipping insertion in model container [2021-11-22 14:49:28,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:49:28" (1/1) ... [2021-11-22 14:49:28,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:49:28,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:49:29,122 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-11-22 14:49:29,123 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-11-22 14:49:29,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-11-22 14:49:30,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:49:30,769 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:49:30,962 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-11-22 14:49:30,963 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-11-22 14:49:30,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-11-22 14:49:31,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:49:31,402 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:49:31,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31 WrapperNode [2021-11-22 14:49:31,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:49:31,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:49:31,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:49:31,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:49:31,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:31,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:34,466 INFO L137 Inliner]: procedures = 219, calls = 1605, calls flagged for inlining = 417, calls inlined = 10719, statements flattened = 121928 [2021-11-22 14:49:34,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:49:34,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:49:34,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:49:34,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:49:34,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:34,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:35,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:35,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:37,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:38,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:38,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:38,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:49:38,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:49:38,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:49:38,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:49:38,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (1/1) ... [2021-11-22 14:49:38,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:49:38,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:49:38,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:49:39,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da41d0a0-d5d5-479d-8632-0d49975c96d8/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:49:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 14:49:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 14:49:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:49:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:49:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:49:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:49:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 14:49:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 14:49:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:49:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:49:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:49:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:49:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:49:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:49:39,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:49:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:49:39,839 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:49:39,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:51:24,095 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:51:24,185 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:51:24,186 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 14:51:24,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:51:24 BoogieIcfgContainer [2021-11-22 14:51:24,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:51:24,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:51:24,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:51:24,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:51:24,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:49:28" (1/3) ... [2021-11-22 14:51:24,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7a27ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:51:24, skipping insertion in model container [2021-11-22 14:51:24,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:49:31" (2/3) ... [2021-11-22 14:51:24,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7a27ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:51:24, skipping insertion in model container [2021-11-22 14:51:24,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:51:24" (3/3) ... [2021-11-22 14:51:24,214 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-22 14:51:24,219 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:51:24,219 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2021-11-22 14:51:24,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:51:24,344 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 [2021-11-22 14:51:24,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2021-11-22 14:51:24,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 18224 states, 18173 states have (on average 1.3178891762504814) internal successors, (23950), 18223 states have internal predecessors, (23950), 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) [2021-11-22 14:51:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 14:51:24,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:51:24,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:51:24,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 14:51:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:51:24,640 INFO L85 PathProgramCache]: Analyzing trace with hash -985199226, now seen corresponding path program 1 times [2021-11-22 14:51:24,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:51:24,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365867179] [2021-11-22 14:51:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:51:24,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:51:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:51:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:51:25,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:51:25,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365867179] [2021-11-22 14:51:25,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365867179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:51:25,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:51:25,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:51:25,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116019051] [2021-11-22 14:51:25,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:51:25,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:51:25,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:51:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:51:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:51:25,493 INFO L87 Difference]: Start difference. First operand has 18224 states, 18173 states have (on average 1.3178891762504814) internal successors, (23950), 18223 states have internal predecessors, (23950), 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 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-22 14:51:27,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:51:27,776 INFO L93 Difference]: Finished difference Result 55770 states and 73629 transitions. [2021-11-22 14:51:27,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:51:27,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-22 14:51:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:51:28,012 INFO L225 Difference]: With dead ends: 55770 [2021-11-22 14:51:28,012 INFO L226 Difference]: Without dead ends: 37342 [2021-11-22 14:51:28,059 INFO L932 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 [2021-11-22 14:51:28,063 INFO L933 BasicCegarLoop]: 30681 mSDtfsCounter, 22168 mSDsluCounter, 48117 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22168 SdHoareTripleChecker+Valid, 78798 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:51:28,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22168 Valid, 78798 Invalid, 75 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:51:28,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37342 states. [2021-11-22 14:51:29,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37342 to 20609. [2021-11-22 14:51:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20609 states, 20559 states have (on average 1.313585291113381) internal successors, (27006), 20608 states have internal predecessors, (27006), 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) [2021-11-22 14:51:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20609 states to 20609 states and 27006 transitions. [2021-11-22 14:51:29,279 INFO L78 Accepts]: Start accepts. Automaton has 20609 states and 27006 transitions. Word has length 45 [2021-11-22 14:51:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:51:29,280 INFO L470 AbstractCegarLoop]: Abstraction has 20609 states and 27006 transitions. [2021-11-22 14:51:29,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-22 14:51:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 20609 states and 27006 transitions. [2021-11-22 14:51:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-22 14:51:29,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:51:29,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:51:29,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:51:29,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 14:51:29,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:51:29,293 INFO L85 PathProgramCache]: Analyzing trace with hash 77737591, now seen corresponding path program 1 times [2021-11-22 14:51:29,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:51:29,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824988556] [2021-11-22 14:51:29,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:51:29,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:51:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:51:29,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:51:29,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:51:29,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824988556] [2021-11-22 14:51:29,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824988556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:51:29,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:51:29,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:51:29,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506593125] [2021-11-22 14:51:29,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:51:29,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:51:29,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:51:29,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:51:29,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:51:29,450 INFO L87 Difference]: Start difference. First operand 20609 states and 27006 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-22 14:51:31,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:51:31,270 INFO L93 Difference]: Finished difference Result 68055 states and 89774 transitions. [2021-11-22 14:51:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:51:31,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-22 14:51:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:51:31,383 INFO L225 Difference]: With dead ends: 68055 [2021-11-22 14:51:31,383 INFO L226 Difference]: Without dead ends: 47464 [2021-11-22 14:51:31,432 INFO L932 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 [2021-11-22 14:51:31,437 INFO L933 BasicCegarLoop]: 26994 mSDtfsCounter, 25447 mSDsluCounter, 47055 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25447 SdHoareTripleChecker+Valid, 74049 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:51:31,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25447 Valid, 74049 Invalid, 67 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:51:31,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47464 states. [2021-11-22 14:51:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47464 to 37244. [2021-11-22 14:51:32,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37244 states, 37194 states have (on average 1.3154541055008873) internal successors, (48927), 37243 states have internal predecessors, (48927), 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) [2021-11-22 14:51:32,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37244 states to 37244 states and 48927 transitions. [2021-11-22 14:51:32,778 INFO L78 Accepts]: Start accepts. Automaton has 37244 states and 48927 transitions. Word has length 46 [2021-11-22 14:51:32,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:51:32,780 INFO L470 AbstractCegarLoop]: Abstraction has 37244 states and 48927 transitions. [2021-11-22 14:51:32,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-22 14:51:32,780 INFO L276 IsEmpty]: Start isEmpty. Operand 37244 states and 48927 transitions. [2021-11-22 14:51:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 14:51:32,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:51:32,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:51:32,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:51:32,800 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 14:51:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:51:32,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1326483852, now seen corresponding path program 1 times [2021-11-22 14:51:32,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:51:32,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408493779] [2021-11-22 14:51:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:51:32,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:51:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:51:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:51:32,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:51:32,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408493779] [2021-11-22 14:51:32,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408493779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:51:32,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:51:32,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:51:32,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161537334] [2021-11-22 14:51:32,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:51:32,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:51:32,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:51:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:51:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:51:32,995 INFO L87 Difference]: Start difference. First operand 37244 states and 48927 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-22 14:51:35,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:51:35,788 INFO L93 Difference]: Finished difference Result 124238 states and 164333 transitions. [2021-11-22 14:51:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:51:35,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2021-11-22 14:51:35,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:51:36,067 INFO L225 Difference]: With dead ends: 124238 [2021-11-22 14:51:36,068 INFO L226 Difference]: Without dead ends: 87012 [2021-11-22 14:51:36,166 INFO L932 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 [2021-11-22 14:51:36,174 INFO L933 BasicCegarLoop]: 26992 mSDtfsCounter, 25454 mSDsluCounter, 47055 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25454 SdHoareTripleChecker+Valid, 74047 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:51:36,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25454 Valid, 74047 Invalid, 67 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:51:36,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87012 states. [2021-11-22 14:51:38,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87012 to 66661. [2021-11-22 14:51:38,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66661 states, 66611 states have (on average 1.3175301376649502) internal successors, (87762), 66660 states have internal predecessors, (87762), 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) [2021-11-22 14:51:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66661 states to 66661 states and 87762 transitions. [2021-11-22 14:51:38,642 INFO L78 Accepts]: Start accepts. Automaton has 66661 states and 87762 transitions. Word has length 47 [2021-11-22 14:51:38,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:51:38,644 INFO L470 AbstractCegarLoop]: Abstraction has 66661 states and 87762 transitions. [2021-11-22 14:51:38,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-22 14:51:38,645 INFO L276 IsEmpty]: Start isEmpty. Operand 66661 states and 87762 transitions. [2021-11-22 14:51:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-22 14:51:38,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:51:38,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:51:38,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:51:38,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 14:51:38,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:51:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1907663562, now seen corresponding path program 1 times [2021-11-22 14:51:38,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:51:38,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34928750] [2021-11-22 14:51:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:51:38,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:51:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:51:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:51:38,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:51:38,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34928750] [2021-11-22 14:51:38,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34928750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:51:38,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:51:38,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:51:38,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110854165] [2021-11-22 14:51:38,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:51:38,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:51:38,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:51:38,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:51:38,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:51:38,816 INFO L87 Difference]: Start difference. First operand 66661 states and 87762 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-22 14:51:42,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:51:42,750 INFO L93 Difference]: Finished difference Result 225041 states and 298418 transitions. [2021-11-22 14:51:42,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:51:42,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-22 14:51:42,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:51:43,131 INFO L225 Difference]: With dead ends: 225041 [2021-11-22 14:51:43,134 INFO L226 Difference]: Without dead ends: 158398 [2021-11-22 14:51:43,237 INFO L932 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 [2021-11-22 14:51:43,240 INFO L933 BasicCegarLoop]: 26990 mSDtfsCounter, 25461 mSDsluCounter, 47055 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25461 SdHoareTripleChecker+Valid, 74045 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:51:43,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25461 Valid, 74045 Invalid, 67 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:51:43,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158398 states. [2021-11-22 14:51:46,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158398 to 117788. [2021-11-22 14:51:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117788 states, 117738 states have (on average 1.3200156279196182) internal successors, (155416), 117787 states have internal predecessors, (155416), 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) [2021-11-22 14:51:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117788 states to 117788 states and 155416 transitions. [2021-11-22 14:51:47,212 INFO L78 Accepts]: Start accepts. Automaton has 117788 states and 155416 transitions. Word has length 48 [2021-11-22 14:51:47,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:51:47,213 INFO L470 AbstractCegarLoop]: Abstraction has 117788 states and 155416 transitions. [2021-11-22 14:51:47,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-22 14:51:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 117788 states and 155416 transitions. [2021-11-22 14:51:47,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 14:51:47,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:51:47,222 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:51:47,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 14:51:47,223 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 14:51:47,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:51:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash 92081080, now seen corresponding path program 1 times [2021-11-22 14:51:47,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:51:47,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072251430] [2021-11-22 14:51:47,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:51:47,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:51:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:51:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 14:51:47,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:51:47,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072251430] [2021-11-22 14:51:47,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072251430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:51:47,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:51:47,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 14:51:47,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037104074] [2021-11-22 14:51:47,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:51:47,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 14:51:47,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:51:47,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:51:47,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:51:47,413 INFO L87 Difference]: Start difference. First operand 117788 states and 155416 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-22 14:51:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:51:53,689 INFO L93 Difference]: Finished difference Result 342768 states and 453790 transitions. [2021-11-22 14:51:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:51:53,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 53 [2021-11-22 14:51:53,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:51:54,094 INFO L225 Difference]: With dead ends: 342768 [2021-11-22 14:51:54,096 INFO L226 Difference]: Without dead ends: 224998 [2021-11-22 14:51:54,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:51:54,243 INFO L933 BasicCegarLoop]: 42053 mSDtfsCounter, 32327 mSDsluCounter, 104143 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32327 SdHoareTripleChecker+Valid, 146196 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:51:54,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32327 Valid, 146196 Invalid, 151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:51:54,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224998 states. [2021-11-22 14:51:58,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224998 to 117828. [2021-11-22 14:51:58,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117828 states, 117778 states have (on average 1.3199069435718045) internal successors, (155456), 117827 states have internal predecessors, (155456), 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) [2021-11-22 14:51:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117828 states to 117828 states and 155456 transitions. [2021-11-22 14:51:58,959 INFO L78 Accepts]: Start accepts. Automaton has 117828 states and 155456 transitions. Word has length 53 [2021-11-22 14:51:58,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:51:58,959 INFO L470 AbstractCegarLoop]: Abstraction has 117828 states and 155456 transitions. [2021-11-22 14:51:58,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-22 14:51:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 117828 states and 155456 transitions. [2021-11-22 14:51:58,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 14:51:58,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:51:58,968 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:51:58,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 14:51:58,968 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 14:51:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:51:58,969 INFO L85 PathProgramCache]: Analyzing trace with hash -44476284, now seen corresponding path program 1 times [2021-11-22 14:51:58,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:51:58,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366312277] [2021-11-22 14:51:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:51:58,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:51:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:51:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:51:59,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:51:59,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366312277] [2021-11-22 14:51:59,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366312277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:51:59,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:51:59,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:51:59,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554029312] [2021-11-22 14:51:59,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:51:59,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:51:59,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:51:59,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:51:59,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:51:59,108 INFO L87 Difference]: Start difference. First operand 117828 states and 155456 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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)