./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--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:50:33,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:50:33,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:50:33,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:50:33,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:50:33,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:50:33,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:50:33,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:50:33,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:50:33,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:50:33,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:50:33,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:50:33,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:50:33,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:50:33,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:50:33,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:50:33,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:50:33,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:50:33,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:50:33,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:50:33,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:50:33,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:50:33,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:50:33,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:50:33,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:50:33,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:50:33,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:50:33,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:50:33,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:50:33,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:50:33,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:50:33,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:50:33,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:50:33,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:50:33,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:50:33,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:50:33,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:50:33,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:50:33,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:50:33,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:50:33,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:50:33,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 07:50:33,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:50:33,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:50:33,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:50:33,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:50:33,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:50:33,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:50:33,315 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:50:33,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:50:33,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:50:33,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:50:33,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:50:33,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:50:33,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:50:33,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:50:33,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:50:33,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:50:33,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:50:33,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:50:33,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:50:33,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:50:33,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:50:33,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:50:33,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:50:33,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:50:33,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:50:33,320 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:50:33,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:50:33,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:50:33,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:50:33,321 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_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db [2021-11-07 07:50:33,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:50:33,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:50:33,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:50:33,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:50:33,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:50:33,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-07 07:50:33,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/data/df7727f86/25ada70736c14d2fafff6131854cec3d/FLAG67a67ce59 [2021-11-07 07:50:35,108 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:50:35,109 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-07 07:50:35,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/data/df7727f86/25ada70736c14d2fafff6131854cec3d/FLAG67a67ce59 [2021-11-07 07:50:35,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/data/df7727f86/25ada70736c14d2fafff6131854cec3d [2021-11-07 07:50:35,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:50:35,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:50:35,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:50:35,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:50:35,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:50:35,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:50:35" (1/1) ... [2021-11-07 07:50:35,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149d0a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:35, skipping insertion in model container [2021-11-07 07:50:35,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:50:35" (1/1) ... [2021-11-07 07:50:35,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:50:36,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:50:42,565 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-07 07:50:42,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:50:43,106 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:50:44,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-07 07:50:44,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:50:44,987 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:50:44,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44 WrapperNode [2021-11-07 07:50:44,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:50:44,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:50:44,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:50:44,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:50:45,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:45,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:49,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:50:49,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:50:49,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:50:49,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:50:49,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:49,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:50,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:50,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:52,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:53,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:53,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:54,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:50:54,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:50:54,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:50:54,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:50:54,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (1/1) ... [2021-11-07 07:50:54,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:50:54,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:50:54,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:50:54,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4da74c6-6d3b-45b2-849d-a0019d69f7fc/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:50:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:50:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 07:50:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 07:50:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:50:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:50:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:50:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 07:50:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 07:50:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:50:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:50:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:50:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:50:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_scan_stm [2021-11-07 07:50:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_scan_stm [2021-11-07 07:50:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:50:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:50:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:50:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:50:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_plt_init [2021-11-07 07:50:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_plt_init [2021-11-07 07:50:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:58:24,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:58:24,350 INFO L299 CfgBuilder]: Removed 19649 assume(true) statements. [2021-11-07 07:58:24,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:58:24 BoogieIcfgContainer [2021-11-07 07:58:24,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:58:24,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:58:24,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:58:24,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:58:24,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:50:35" (1/3) ... [2021-11-07 07:58:24,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476ff06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:58:24, skipping insertion in model container [2021-11-07 07:58:24,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:44" (2/3) ... [2021-11-07 07:58:24,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476ff06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:58:24, skipping insertion in model container [2021-11-07 07:58:24,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:58:24" (3/3) ... [2021-11-07 07:58:24,386 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-07 07:58:24,393 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:58:24,393 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 07:58:24,558 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:58:24,566 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:58:24,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 07:58:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-07 07:58:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-07 07:58:25,172 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:58:25,173 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:58:25,174 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 07:58:25,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:58:25,187 INFO L85 PathProgramCache]: Analyzing trace with hash -554712371, now seen corresponding path program 1 times [2021-11-07 07:58:25,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:58:25,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948299148] [2021-11-07 07:58:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:58:25,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:58:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:58:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-07 07:58:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:58:27,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-07 07:58:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:58:27,743 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 07:58:27,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:58:27,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948299148] [2021-11-07 07:58:27,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948299148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:58:27,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:58:27,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:58:27,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805677677] [2021-11-07 07:58:27,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:58:27,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:58:27,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:58:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:58:27,835 INFO L87 Difference]: Start difference. First operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:59:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:59:19,167 INFO L93 Difference]: Finished difference Result 35573 states and 49845 transitions. [2021-11-07 07:59:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:59:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 186 [2021-11-07 07:59:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:59:19,316 INFO L225 Difference]: With dead ends: 35573 [2021-11-07 07:59:19,317 INFO L226 Difference]: Without dead ends: 17726 [2021-11-07 07:59:19,378 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:59:19,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-11-07 07:59:20,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 17679. [2021-11-07 07:59:20,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17679 states, 17653 states have (on average 1.345097150625956) internal successors, (23745), 17662 states have internal predecessors, (23745), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-07 07:59:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17679 states to 17679 states and 23779 transitions. [2021-11-07 07:59:20,153 INFO L78 Accepts]: Start accepts. Automaton has 17679 states and 23779 transitions. Word has length 186 [2021-11-07 07:59:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:59:20,154 INFO L470 AbstractCegarLoop]: Abstraction has 17679 states and 23779 transitions. [2021-11-07 07:59:20,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:59:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 17679 states and 23779 transitions. [2021-11-07 07:59:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-07 07:59:20,196 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:59:20,196 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:59:20,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:59:20,197 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 07:59:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:59:20,198 INFO L85 PathProgramCache]: Analyzing trace with hash 654632037, now seen corresponding path program 1 times [2021-11-07 07:59:20,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:59:20,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120426715] [2021-11-07 07:59:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:59:20,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:59:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:59:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-07 07:59:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:59:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-07 07:59:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:59:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 07:59:22,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:59:22,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120426715] [2021-11-07 07:59:22,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120426715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:59:22,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:59:22,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:59:22,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314635827] [2021-11-07 07:59:22,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:59:22,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:59:22,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:59:22,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:59:22,234 INFO L87 Difference]: Start difference. First operand 17679 states and 23779 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 08:00:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:00:18,482 INFO L93 Difference]: Finished difference Result 41654 states and 56055 transitions. [2021-11-07 08:00:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:00:18,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 188 [2021-11-07 08:00:18,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:00:18,680 INFO L225 Difference]: With dead ends: 41654 [2021-11-07 08:00:18,681 INFO L226 Difference]: Without dead ends: 24089 [2021-11-07 08:00:18,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:00:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24089 states. [2021-11-07 08:00:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24089 to 24024. [2021-11-07 08:00:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24024 states, 23981 states have (on average 1.344814644927234) internal successors, (32250), 23994 states have internal predecessors, (32250), 27 states have call successors, (27), 6 states have call predecessors, (27), 10 states have return successors, (49), 25 states have call predecessors, (49), 27 states have call successors, (49) [2021-11-07 08:00:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24024 states to 24024 states and 32326 transitions. [2021-11-07 08:00:19,649 INFO L78 Accepts]: Start accepts. Automaton has 24024 states and 32326 transitions. Word has length 188 [2021-11-07 08:00:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:00:19,652 INFO L470 AbstractCegarLoop]: Abstraction has 24024 states and 32326 transitions. [2021-11-07 08:00:19,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 08:00:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 24024 states and 32326 transitions. [2021-11-07 08:00:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-07 08:00:19,667 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:00:19,676 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:00:19,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:00:19,677 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 08:00:19,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:00:19,678 INFO L85 PathProgramCache]: Analyzing trace with hash 879763896, now seen corresponding path program 1 times [2021-11-07 08:00:19,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:00:19,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693663472] [2021-11-07 08:00:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:00:19,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:00:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:00:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:00:21,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:00:21,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693663472] [2021-11-07 08:00:21,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693663472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:00:21,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:00:21,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:00:21,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623992678] [2021-11-07 08:00:21,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:00:21,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:00:21,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:00:21,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:00:21,721 INFO L87 Difference]: Start difference. First operand 24024 states and 32326 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:00:25,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:00:25,568 INFO L93 Difference]: Finished difference Result 70408 states and 95277 transitions. [2021-11-07 08:00:25,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:00:25,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 187 [2021-11-07 08:00:25,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:00:25,946 INFO L225 Difference]: With dead ends: 70408 [2021-11-07 08:00:25,946 INFO L226 Difference]: Without dead ends: 46498 [2021-11-07 08:00:25,998 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:00:26,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46498 states. [2021-11-07 08:00:27,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46498 to 46494. [2021-11-07 08:00:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46494 states, 46414 states have (on average 1.3556685482828457) internal successors, (62922), 46435 states have internal predecessors, (62922), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-07 08:00:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46494 states to 46494 states and 63074 transitions. [2021-11-07 08:00:27,603 INFO L78 Accepts]: Start accepts. Automaton has 46494 states and 63074 transitions. Word has length 187 [2021-11-07 08:00:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:00:27,605 INFO L470 AbstractCegarLoop]: Abstraction has 46494 states and 63074 transitions. [2021-11-07 08:00:27,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:00:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 46494 states and 63074 transitions. [2021-11-07 08:00:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-07 08:00:27,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:00:27,615 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:00:27,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:00:27,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 08:00:27,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:00:27,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1698691325, now seen corresponding path program 1 times [2021-11-07 08:00:27,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:00:27,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449523083] [2021-11-07 08:00:27,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:00:27,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:00:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:00:29,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:00:29,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:00:29,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449523083] [2021-11-07 08:00:29,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449523083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:00:29,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:00:29,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:00:29,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635906795] [2021-11-07 08:00:29,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:00:29,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:00:29,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:00:29,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:00:29,704 INFO L87 Difference]: Start difference. First operand 46494 states and 63074 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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)