./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--mwl8k.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a6e1397422f061401041ed8290b479ab382edc5aeb84d3f22471688ceb94ba00 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:49:57,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:49:57,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:49:57,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:49:57,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:49:57,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:49:57,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:49:57,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:49:57,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:49:57,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:49:57,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:49:57,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:49:57,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:49:57,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:49:57,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:49:57,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:49:57,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:49:57,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:49:57,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:49:57,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:49:57,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:49:57,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:49:57,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:49:57,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:49:57,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:49:57,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:49:57,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:49:57,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:49:57,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:49:57,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:49:57,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:49:57,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:49:57,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:49:57,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:49:57,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:49:57,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:49:57,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:49:57,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:49:57,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:49:57,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:49:57,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:49:57,972 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:49:58,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:49:58,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:49:58,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:49:58,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:49:58,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:49:58,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:49:58,008 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:49:58,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:49:58,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:49:58,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:49:58,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:49:58,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:49:58,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:49:58,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:49:58,010 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:49:58,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:49:58,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:49:58,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:49:58,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:49:58,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:49:58,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:49:58,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:49:58,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:49:58,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:49:58,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:49:58,012 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:49:58,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:49:58,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:49:58,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:49:58,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e1397422f061401041ed8290b479ab382edc5aeb84d3f22471688ceb94ba00 [2021-11-06 16:49:58,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:49:58,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:49:58,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:49:58,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:49:58,261 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:49:58,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-06 16:49:58,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3048bb317/c3c2b55828934206b2ff6c7577838fb0/FLAG1fd720abc [2021-11-06 16:49:59,212 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:49:59,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-06 16:49:59,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3048bb317/c3c2b55828934206b2ff6c7577838fb0/FLAG1fd720abc [2021-11-06 16:49:59,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3048bb317/c3c2b55828934206b2ff6c7577838fb0 [2021-11-06 16:49:59,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:49:59,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:49:59,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:49:59,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:49:59,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:49:59,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:49:59" (1/1) ... [2021-11-06 16:49:59,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c63110a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:49:59, skipping insertion in model container [2021-11-06 16:49:59,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:49:59" (1/1) ... [2021-11-06 16:49:59,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:49:59,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:50:02,920 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[462027,462040] [2021-11-06 16:50:03,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:50:03,277 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:50:03,691 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[462027,462040] [2021-11-06 16:50:03,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:50:03,865 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:50:03,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03 WrapperNode [2021-11-06 16:50:03,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:50:03,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:50:03,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:50:03,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:50:03,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:04,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:09,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:50:09,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:50:09,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:50:09,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:50:09,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:09,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:10,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:10,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:12,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:13,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:13,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:14,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:50:14,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:50:14,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:50:14,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:50:14,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (1/1) ... [2021-11-06 16:50:14,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:50:14,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:50:14,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 16:50:14,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 16:50:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 16:50:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:50:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 16:50:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 16:50:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:50:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:50:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:50:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 16:50:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2021-11-06 16:50:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2021-11-06 16:50:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:50:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:50:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2021-11-06 16:50:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2021-11-06 16:50:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 16:50:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 16:50:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2021-11-06 16:50:14,706 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2021-11-06 16:50:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:50:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:50:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:50:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:50:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:50:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2021-11-06 16:50:14,707 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2021-11-06 16:54:38,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:54:38,288 INFO L299 CfgBuilder]: Removed 31180 assume(true) statements. [2021-11-06 16:54:38,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:54:38 BoogieIcfgContainer [2021-11-06 16:54:38,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:54:38,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:54:38,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:54:38,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:54:38,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:49:59" (1/3) ... [2021-11-06 16:54:38,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e88510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:54:38, skipping insertion in model container [2021-11-06 16:54:38,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:03" (2/3) ... [2021-11-06 16:54:38,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e88510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:54:38, skipping insertion in model container [2021-11-06 16:54:38,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:54:38" (3/3) ... [2021-11-06 16:54:38,325 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-06 16:54:38,330 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:54:38,330 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 176 error locations. [2021-11-06 16:54:38,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:54:38,469 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 [2021-11-06 16:54:38,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 176 error locations. [2021-11-06 16:54:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 33081 states, 32504 states have (on average 1.4352079744031503) internal successors, (46650), 32682 states have internal predecessors, (46650), 396 states have call successors, (396), 4 states have call predecessors, (396), 4 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) [2021-11-06 16:54:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-06 16:54:38,907 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:54:38,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:54:38,909 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-06 16:54:38,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:54:38,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1450080300, now seen corresponding path program 1 times [2021-11-06 16:54:38,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:54:38,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205807756] [2021-11-06 16:54:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:54:38,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:54:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:54:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:54:39,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:54:39,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205807756] [2021-11-06 16:54:39,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205807756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:54:39,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:54:39,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:54:39,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221518215] [2021-11-06 16:54:39,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:54:39,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:54:39,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:54:39,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:54:39,874 INFO L87 Difference]: Start difference. First operand has 33081 states, 32504 states have (on average 1.4352079744031503) internal successors, (46650), 32682 states have internal predecessors, (46650), 396 states have call successors, (396), 4 states have call predecessors, (396), 4 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) Second operand has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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) [2021-11-06 16:54:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:54:40,952 INFO L93 Difference]: Finished difference Result 66158 states and 95275 transitions. [2021-11-06 16:54:40,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 16:54:40,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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 223 [2021-11-06 16:54:40,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:54:41,146 INFO L225 Difference]: With dead ends: 66158 [2021-11-06 16:54:41,147 INFO L226 Difference]: Without dead ends: 32677 [2021-11-06 16:54:41,389 INFO L786 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 [2021-11-06 16:54:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32677 states. [2021-11-06 16:54:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32677 to 32677. [2021-11-06 16:54:42,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32677 states, 32101 states have (on average 1.4017008815924739) internal successors, (44996), 32278 states have internal predecessors, (44996), 396 states have call successors, (396), 4 states have call predecessors, (396), 4 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) [2021-11-06 16:54:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32677 states to 32677 states and 45788 transitions. [2021-11-06 16:54:42,554 INFO L78 Accepts]: Start accepts. Automaton has 32677 states and 45788 transitions. Word has length 223 [2021-11-06 16:54:42,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:54:42,555 INFO L470 AbstractCegarLoop]: Abstraction has 32677 states and 45788 transitions. [2021-11-06 16:54:42,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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) [2021-11-06 16:54:42,556 INFO L276 IsEmpty]: Start isEmpty. Operand 32677 states and 45788 transitions. [2021-11-06 16:54:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-06 16:54:42,565 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:54:42,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:54:42,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:54:42,567 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-06 16:54:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:54:42,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1721136814, now seen corresponding path program 1 times [2021-11-06 16:54:42,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:54:42,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767693647] [2021-11-06 16:54:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:54:42,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:54:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:54:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:54:43,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:54:43,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767693647] [2021-11-06 16:54:43,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767693647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:54:43,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:54:43,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:54:43,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409052810] [2021-11-06 16:54:43,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:54:43,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:54:43,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:54:43,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:54:43,148 INFO L87 Difference]: Start difference. First operand 32677 states and 45788 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2021-11-06 16:54:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:54:45,716 INFO L93 Difference]: Finished difference Result 84735 states and 118792 transitions. [2021-11-06 16:54:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:54:45,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 223 [2021-11-06 16:54:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:54:45,910 INFO L225 Difference]: With dead ends: 84735 [2021-11-06 16:54:45,912 INFO L226 Difference]: Without dead ends: 52267 [2021-11-06 16:54:46,026 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 [2021-11-06 16:54:46,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52267 states. [2021-11-06 16:54:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52267 to 52047. [2021-11-06 16:54:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52047 states, 51266 states have (on average 1.4028595950532516) internal successors, (71919), 51445 states have internal predecessors, (71919), 597 states have call successors, (597), 8 states have call predecessors, (597), 8 states have return successors, (597), 597 states have call predecessors, (597), 597 states have call successors, (597) [2021-11-06 16:54:47,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52047 states to 52047 states and 73113 transitions. [2021-11-06 16:54:47,693 INFO L78 Accepts]: Start accepts. Automaton has 52047 states and 73113 transitions. Word has length 223 [2021-11-06 16:54:47,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:54:47,699 INFO L470 AbstractCegarLoop]: Abstraction has 52047 states and 73113 transitions. [2021-11-06 16:54:47,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2021-11-06 16:54:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 52047 states and 73113 transitions. [2021-11-06 16:54:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-06 16:54:47,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:54:47,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:54:47,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:54:47,704 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr169ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-06 16:54:47,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:54:47,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1733803977, now seen corresponding path program 1 times [2021-11-06 16:54:47,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:54:47,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248618603] [2021-11-06 16:54:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:54:47,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:54:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:54:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:54:48,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:54:48,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248618603] [2021-11-06 16:54:48,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248618603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:54:48,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:54:48,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:54:48,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058954973] [2021-11-06 16:54:48,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:54:48,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:54:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:54:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:54:48,538 INFO L87 Difference]: Start difference. First operand 52047 states and 73113 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-11-06 16:54:52,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:54:52,741 INFO L93 Difference]: Finished difference Result 155689 states and 218850 transitions. [2021-11-06 16:54:52,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:54:52,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 226 [2021-11-06 16:54:52,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:54:53,237 INFO L225 Difference]: With dead ends: 155689 [2021-11-06 16:54:53,238 INFO L226 Difference]: Without dead ends: 103851 [2021-11-06 16:54:53,440 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 [2021-11-06 16:54:53,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103851 states. [2021-11-06 16:54:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103851 to 103507. [2021-11-06 16:54:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103507 states, 102121 states have (on average 1.4041871897063287) internal successors, (143397), 102304 states have internal predecessors, (143397), 1194 states have call successors, (1194), 16 states have call predecessors, (1194), 16 states have return successors, (1194), 1194 states have call predecessors, (1194), 1194 states have call successors, (1194) [2021-11-06 16:54:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103507 states to 103507 states and 145785 transitions. [2021-11-06 16:54:57,262 INFO L78 Accepts]: Start accepts. Automaton has 103507 states and 145785 transitions. Word has length 226 [2021-11-06 16:54:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:54:57,262 INFO L470 AbstractCegarLoop]: Abstraction has 103507 states and 145785 transitions. [2021-11-06 16:54:57,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-11-06 16:54:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 103507 states and 145785 transitions. [2021-11-06 16:54:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-06 16:54:57,266 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:54:57,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:54:57,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:54:57,266 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 173 more)] === [2021-11-06 16:54:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:54:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1069117329, now seen corresponding path program 1 times [2021-11-06 16:54:57,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:54:57,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948280398] [2021-11-06 16:54:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:54:57,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:54:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:54:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:54:58,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:54:58,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948280398] [2021-11-06 16:54:58,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948280398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:54:58,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:54:58,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:54:58,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352630777] [2021-11-06 16:54:58,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:54:58,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:54:58,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:54:58,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:54:58,281 INFO L87 Difference]: Start difference. First operand 103507 states and 145785 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2021-11-06 16:55:03,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:55:03,374 INFO L93 Difference]: Finished difference Result 207343 states and 291882 transitions. [2021-11-06 16:55:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:55:03,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 227 [2021-11-06 16:55:03,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:55:03,854 INFO L225 Difference]: With dead ends: 207343 [2021-11-06 16:55:03,854 INFO L226 Difference]: Without dead ends: 104045 [2021-11-06 16:55:04,509 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 [2021-11-06 16:55:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104045 states.