./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--snic--snic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--snic--snic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7dcd1acfec035cd5bee4d2a2bc431ae75883c3db9d5f940af009bd842b7c20d4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:08:26,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:08:26,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:08:26,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:08:26,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:08:26,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:08:26,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:08:26,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:08:26,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:08:26,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:08:26,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:08:26,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:08:26,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:08:26,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:08:26,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:08:26,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:08:26,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:08:26,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:08:26,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:08:26,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:08:26,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:08:26,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:08:26,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:08:26,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:08:26,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:08:26,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:08:26,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:08:26,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:08:26,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:08:26,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:08:26,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:08:26,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:08:26,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:08:26,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:08:26,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:08:26,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:08:26,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:08:26,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:08:26,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:08:26,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:08:26,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:08:26,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 14:08:26,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:08:26,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:08:26,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:08:26,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:08:26,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:08:26,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:08:26,570 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:08:26,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:08:26,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:08:26,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:08:26,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:08:26,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:08:26,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:08:26,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:08:26,573 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:08:26,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:08:26,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:08:26,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:08:26,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:08:26,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:08:26,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:08:26,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:08:26,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:08:26,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:08:26,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:08:26,575 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:08:26,575 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:08:26,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:08:26,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:08:26,577 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_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dcd1acfec035cd5bee4d2a2bc431ae75883c3db9d5f940af009bd842b7c20d4 [2021-11-23 14:08:26,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:08:26,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:08:26,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:08:26,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:08:26,906 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:08:26,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--snic--snic.ko-entry_point.cil.out.i [2021-11-23 14:08:26,966 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/data/f7f07fbaf/2a8b8b96352745f58b764cc503e83efd/FLAG5087a59ac [2021-11-23 14:08:28,150 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:08:28,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--snic--snic.ko-entry_point.cil.out.i [2021-11-23 14:08:28,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/data/f7f07fbaf/2a8b8b96352745f58b764cc503e83efd/FLAG5087a59ac [2021-11-23 14:08:28,489 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/data/f7f07fbaf/2a8b8b96352745f58b764cc503e83efd [2021-11-23 14:08:28,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:08:28,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:08:28,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:08:28,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:08:28,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:08:28,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:28" (1/1) ... [2021-11-23 14:08:28,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ae6b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:28, skipping insertion in model container [2021-11-23 14:08:28,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:28" (1/1) ... [2021-11-23 14:08:28,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:08:28,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:08:35,919 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_918d504b-f22a-4632-b6d3-42139862eb95/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--snic--snic.ko-entry_point.cil.out.i[687738,687751] [2021-11-23 14:08:36,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:08:36,265 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:08:37,178 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_918d504b-f22a-4632-b6d3-42139862eb95/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--snic--snic.ko-entry_point.cil.out.i[687738,687751] [2021-11-23 14:08:37,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:08:37,423 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:08:37,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37 WrapperNode [2021-11-23 14:08:37,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:08:37,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:08:37,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:08:37,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:08:37,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:37,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:44,322 INFO L137 Inliner]: procedures = 750, calls = 7268, calls flagged for inlining = 2449, calls inlined = 25133, statements flattened = 281859 [2021-11-23 14:08:44,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:08:44,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:08:44,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:08:44,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:08:44,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:44,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:46,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:46,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:50,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:50,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:51,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:52,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:08:52,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:08:52,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:08:52,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:08:52,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (1/1) ... [2021-11-23 14:08:52,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:08:52,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:52,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:08:52,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918d504b-f22a-4632-b6d3-42139862eb95/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:08:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure snic_process_itmf_cmpl [2021-11-23 14:08:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_process_itmf_cmpl [2021-11-23 14:08:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure snic_hba_reset_cmpl_handler [2021-11-23 14:08:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_hba_reset_cmpl_handler [2021-11-23 14:08:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure snic_hba_reset_scsi_cleanup [2021-11-23 14:08:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_hba_reset_scsi_cleanup [2021-11-23 14:08:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure snic_io_cmpl_handler [2021-11-23 14:08:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_io_cmpl_handler [2021-11-23 14:08:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 14:08:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:08:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure snic_probe [2021-11-23 14:08:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_probe [2021-11-23 14:08:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 14:08:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 14:08:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:08:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:08:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:08:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:08:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 14:08:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 14:08:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:08:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:08:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure snic_itmf_cmpl_handler [2021-11-23 14:08:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_itmf_cmpl_handler [2021-11-23 14:08:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 14:08:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 14:08:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure snic_scsi_cleanup [2021-11-23 14:08:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_scsi_cleanup [2021-11-23 14:08:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure snic_cleanup [2021-11-23 14:08:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_cleanup [2021-11-23 14:08:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:08:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:08:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 14:08:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure snic_icmnd_cmpl_handler [2021-11-23 14:08:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_icmnd_cmpl_handler [2021-11-23 14:08:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure snic_shutdown_scsi_cleanup [2021-11-23 14:08:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_shutdown_scsi_cleanup [2021-11-23 14:08:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_cq_fw_service [2021-11-23 14:08:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_cq_fw_service [2021-11-23 14:08:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:08:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure snic_remove [2021-11-23 14:08:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_remove [2021-11-23 14:08:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 14:08:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 14:08:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure snic_dev_wait [2021-11-23 14:08:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_dev_wait [2021-11-23 14:08:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-11-23 14:08:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure snic_fwcq_cmpl_handler [2021-11-23 14:08:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure snic_fwcq_cmpl_handler [2021-11-23 14:08:52,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 14:08:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 14:08:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:08:56,097 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:08:56,100 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:11:38,673 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:11:38,860 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:11:38,860 INFO L301 CfgBuilder]: Removed 101 assume(true) statements. [2021-11-23 14:11:38,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:38 BoogieIcfgContainer [2021-11-23 14:11:38,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:11:38,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:11:38,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:11:38,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:11:38,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:08:28" (1/3) ... [2021-11-23 14:11:38,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4581bb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:38, skipping insertion in model container [2021-11-23 14:11:38,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:37" (2/3) ... [2021-11-23 14:11:38,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4581bb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:38, skipping insertion in model container [2021-11-23 14:11:38,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:38" (3/3) ... [2021-11-23 14:11:38,919 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--snic--snic.ko-entry_point.cil.out.i [2021-11-23 14:11:38,924 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:11:38,924 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 296 error locations. [2021-11-23 14:11:39,090 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:11:39,096 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:11:39,096 INFO L340 AbstractCegarLoop]: Starting to check reachability of 296 error locations. [2021-11-23 14:11:39,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 52527 states, 52189 states have (on average 1.3365460154438675) internal successors, (69753), 52488 states have internal predecessors, (69753), 24 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-23 14:11:39,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 14:11:39,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:11:39,760 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] [2021-11-23 14:11:39,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 293 more)] === [2021-11-23 14:11:39,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:11:39,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2009388554, now seen corresponding path program 1 times [2021-11-23 14:11:39,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:11:39,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414706505] [2021-11-23 14:11:39,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:11:39,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:11:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:11:40,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:11:40,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:11:40,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414706505] [2021-11-23 14:11:40,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414706505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:11:40,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:11:40,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:11:40,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883207328] [2021-11-23 14:11:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:11:40,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:11:40,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:11:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:11:40,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:11:40,893 INFO L87 Difference]: Start difference. First operand has 52527 states, 52189 states have (on average 1.3365460154438675) internal successors, (69753), 52488 states have internal predecessors, (69753), 24 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:43,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:11:43,562 INFO L93 Difference]: Finished difference Result 104754 states and 139325 transitions. [2021-11-23 14:11:43,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:11:43,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-11-23 14:11:43,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:11:43,961 INFO L225 Difference]: With dead ends: 104754 [2021-11-23 14:11:43,962 INFO L226 Difference]: Without dead ends: 51801 [2021-11-23 14:11:44,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:11:44,177 INFO L933 BasicCegarLoop]: 68730 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68730 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:11:44,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 68730 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:11:44,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51801 states. [2021-11-23 14:11:45,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51801 to 51801. [2021-11-23 14:11:45,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51801 states, 51464 states have (on average 1.3179309808798383) internal successors, (67826), 51762 states have internal predecessors, (67826), 24 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-23 14:11:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51801 states to 51801 states and 67874 transitions. [2021-11-23 14:11:46,386 INFO L78 Accepts]: Start accepts. Automaton has 51801 states and 67874 transitions. Word has length 31 [2021-11-23 14:11:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:11:46,387 INFO L470 AbstractCegarLoop]: Abstraction has 51801 states and 67874 transitions. [2021-11-23 14:11:46,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:46,387 INFO L276 IsEmpty]: Start isEmpty. Operand 51801 states and 67874 transitions. [2021-11-23 14:11:46,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 14:11:46,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:11:46,397 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] [2021-11-23 14:11:46,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:11:46,400 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 293 more)] === [2021-11-23 14:11:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:11:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1642092146, now seen corresponding path program 1 times [2021-11-23 14:11:46,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:11:46,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179649173] [2021-11-23 14:11:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:11:46,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:11:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:11:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:11:46,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:11:46,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179649173] [2021-11-23 14:11:46,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179649173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:11:46,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:11:46,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:11:46,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774360267] [2021-11-23 14:11:46,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:11:46,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:11:46,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:11:46,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:11:46,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:11:46,973 INFO L87 Difference]: Start difference. First operand 51801 states and 67874 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:49,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:11:49,985 INFO L93 Difference]: Finished difference Result 51801 states and 67874 transitions. [2021-11-23 14:11:49,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:11:49,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-11-23 14:11:49,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:11:50,170 INFO L225 Difference]: With dead ends: 51801 [2021-11-23 14:11:50,170 INFO L226 Difference]: Without dead ends: 51602 [2021-11-23 14:11:50,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:11:50,191 INFO L933 BasicCegarLoop]: 67578 mSDtfsCounter, 65728 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65728 SdHoareTripleChecker+Valid, 68817 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:11:50,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65728 Valid, 68817 Invalid, 876 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [292 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 14:11:50,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51602 states. [2021-11-23 14:11:51,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51602 to 51602. [2021-11-23 14:11:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51602 states, 51364 states have (on average 1.3166225371855775) internal successors, (67627), 51563 states have internal predecessors, (67627), 24 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-23 14:11:51,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51602 states to 51602 states and 67675 transitions. [2021-11-23 14:11:51,794 INFO L78 Accepts]: Start accepts. Automaton has 51602 states and 67675 transitions. Word has length 31 [2021-11-23 14:11:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:11:51,796 INFO L470 AbstractCegarLoop]: Abstraction has 51602 states and 67675 transitions. [2021-11-23 14:11:51,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand 51602 states and 67675 transitions. [2021-11-23 14:11:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 14:11:51,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:11:51,801 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] [2021-11-23 14:11:51,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:11:51,801 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 293 more)] === [2021-11-23 14:11:51,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:11:51,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1594687961, now seen corresponding path program 1 times [2021-11-23 14:11:51,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:11:51,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801306956] [2021-11-23 14:11:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:11:51,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:11:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:11:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:11:52,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:11:52,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801306956] [2021-11-23 14:11:52,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801306956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:11:52,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:11:52,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:11:52,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810791230] [2021-11-23 14:11:52,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:11:52,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:11:52,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:11:52,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:11:52,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:11:52,406 INFO L87 Difference]: Start difference. First operand 51602 states and 67675 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:11:57,334 INFO L93 Difference]: Finished difference Result 145134 states and 190450 transitions. [2021-11-23 14:11:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:11:57,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 37 [2021-11-23 14:11:57,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:11:57,789 INFO L225 Difference]: With dead ends: 145134 [2021-11-23 14:11:57,790 INFO L226 Difference]: Without dead ends: 93551 [2021-11-23 14:11:57,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:11:57,965 INFO L933 BasicCegarLoop]: 67651 mSDtfsCounter, 99421 mSDsluCounter, 102395 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99421 SdHoareTripleChecker+Valid, 170046 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 14:11:57,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99421 Valid, 170046 Invalid, 234 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [34 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 14:11:58,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93551 states. [2021-11-23 14:12:00,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93551 to 91851. [2021-11-23 14:12:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91851 states, 91572 states have (on average 1.3175424802341327) internal successors, (120650), 91774 states have internal predecessors, (120650), 48 states have call successors, (48), 34 states have call predecessors, (48), 34 states have return successors, (72), 46 states have call predecessors, (72), 48 states have call successors, (72) [2021-11-23 14:12:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91851 states to 91851 states and 120770 transitions. [2021-11-23 14:12:01,323 INFO L78 Accepts]: Start accepts. Automaton has 91851 states and 120770 transitions. Word has length 37 [2021-11-23 14:12:01,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:12:01,330 INFO L470 AbstractCegarLoop]: Abstraction has 91851 states and 120770 transitions. [2021-11-23 14:12:01,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:12:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 91851 states and 120770 transitions. [2021-11-23 14:12:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 14:12:01,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:12:01,339 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] [2021-11-23 14:12:01,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:12:01,340 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 293 more)] === [2021-11-23 14:12:01,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:12:01,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1330250260, now seen corresponding path program 1 times [2021-11-23 14:12:01,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:12:01,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625594906] [2021-11-23 14:12:01,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:12:01,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:12:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:12:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:12:01,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:12:01,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625594906] [2021-11-23 14:12:01,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625594906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:12:01,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:12:01,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:12:01,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279601176] [2021-11-23 14:12:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:12:01,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:12:01,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:12:01,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:12:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:12:01,862 INFO L87 Difference]: Start difference. First operand 91851 states and 120770 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:12:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:12:07,111 INFO L93 Difference]: Finished difference Result 216565 states and 284808 transitions. [2021-11-23 14:12:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:12:07,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2021-11-23 14:12:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:12:07,582 INFO L225 Difference]: With dead ends: 216565 [2021-11-23 14:12:07,583 INFO L226 Difference]: Without dead ends: 124733 [2021-11-23 14:12:07,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:12:07,903 INFO L933 BasicCegarLoop]: 67651 mSDtfsCounter, 55064 mSDsluCounter, 202686 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55064 SdHoareTripleChecker+Valid, 270337 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:12:07,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55064 Valid, 270337 Invalid, 474 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [31 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 14:12:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124733 states.